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1. Wan H, Chihiro O, Yuan S: MASEP gamma knife radiosurgery for secretory pituitary adenomas: experience in 347 consecutive cases. J Exp Clin Cancer Res; 2009;28:36
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  • [Title] MASEP gamma knife radiosurgery for secretory pituitary adenomas: experience in 347 consecutive cases.
  • BACKGROUND: Secretory pituitary adenomas are very common brain tumors.
  • Historically, the treatment armamentarium for secretory pituitary adenomas included neurosurgery, medical management, and fractionated radiotherapy.
  • In recent years, MASEP gamma knife radiosurgery (MASEP GKRS) has emerged as an important treatment modality in the management of secretory pituitary adenomas.
  • The goal of this research is to define accurately the efficacy, safety, complications, and role of MASEP GKRS for treatment of secretory pituitary adenomas.
  • METHODS: Between 1997 and 2007 a total of 347 patients with secretory pituitary adenomas treated with MASEP GKRS and with at least 60 months of follow-up data were identified.
  • Of the 68 patients with adrenocorticotropic hormone-secreting(ACTH) adenomas, 89.7% showed tumor volume decrease or remain unchanged and 27.9% experienced normalization of hormone level.
  • Of the 176 patients with prolactinomas, 23.3% had normalization of hormone level and 90.3% showed tumor volume decrease or remain unchanged.
  • Of the 103 patients with growth hormone-secreting(GH) adenomas, 95.1% experienced tumor volume decrease or remain unchanged and 36.9% showed normalization of hormone level.
  • CONCLUSION: MASEP GKRS is safe and effective in treating secretory pituitary adenomas.
  • However, treatment must be tailored to meet the patient's symptoms, tumor location, tumor morphometry, and overall health.
  • [MeSH-major] Adenoma / surgery. Pituitary Neoplasms / surgery. Radiosurgery / methods

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  • (PMID = 19284583.001).
  • [ISSN] 1756-9966
  • [Journal-full-title] Journal of experimental & clinical cancer research : CR
  • [ISO-abbreviation] J. Exp. Clin. Cancer Res.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] Italy
  • [Other-IDs] NLM/ PMC2660297
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2. Castinetti F, Nagai M, Morange I, Dufour H, Caron P, Chanson P, Cortet-Rudelli C, Kuhn JM, Conte-Devolx B, Regis J, Brue T: Long-term results of stereotactic radiosurgery in secretory pituitary adenomas. J Clin Endocrinol Metab; 2009 Sep;94(9):3400-7
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  • [Title] Long-term results of stereotactic radiosurgery in secretory pituitary adenomas.
  • OBJECTIVE: The aim of the study was to determine long-term efficacy and adverse effects of SR in secreting pituitary adenomas.
  • PATIENTS: A total of 76 patients were treated by SR for acromegaly (n = 43), Cushing's disease (CD; n = 18), or prolactinoma (n = 15) as a primary (n = 27) or adjunctive postsurgical treatment (n = 49).
  • CONCLUSIONS: SR is an effective and safe primary or adjunctive treatment in selected patients with secreting pituitary adenomas.
  • [MeSH-major] Adenoma / surgery. Pituitary Neoplasms / surgery. Radiosurgery
  • [MeSH-minor] Acromegaly / surgery. Adolescent. Adrenocorticotropic Hormone / secretion. Adult. Aged. Child. Female. Human Growth Hormone / secretion. Humans. Male. Middle Aged. Pituitary ACTH Hypersecretion / surgery. Prolactin / secretion. Prolactinoma / surgery. Retrospective Studies


3. Pedroncelli AM: Medical treatment of Cushing's disease: somatostatin analogues and pasireotide. Neuroendocrinology; 2010;92 Suppl 1:120-4
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  • [Title] Medical treatment of Cushing's disease: somatostatin analogues and pasireotide.
  • Cushing's disease is Cushing's syndrome caused by an adrenocorticotropic hormone-secreting pituitary adenoma and, in the absence of adequate treatment, can be fatal.
  • Cushing's disease represents an unmet medical need, with no approved medical therapies.
  • Adrenocorticotropic hormone-secreting pituitary adenomas predominantly express sst(5), followed by sst(2) and sst(1), suggesting that pasireotide may be effective in the treatment of Cushing's disease.
  • In a 15-day phase II trial of pasireotide 600 μg s.c. b.i.d. in patients with de novo or persistent/recurrent Cushing's disease, 22 of 29 patients (76%) achieved reduced urinary free cortisol (UFC) levels, 5 of whom (17%) achieved normalized UFC.
  • Patients who achieved normalized UFC had a significantly greater reduction in serum cortisol than those who did not (p = 0.04), and minimum pasireotide plasma concentrations appeared to be higher in responders.
  • This is the largest ever phase III study in patients with Cushing's disease.
  • Finally, preliminary results from a study on 17 patients with Cushing's disease suggest that the combined use of pasireotide, cabergoline and low-dose ketoconazole may have additive beneficial effects in the medical treatment of Cushing's disease.
  • [MeSH-major] Pituitary ACTH Hypersecretion / drug therapy. Pituitary Neoplasms / drug therapy. Somatostatin / analogs & derivatives

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  • [Copyright] Copyright © 2010 S. Karger AG, Basel.
  • (PMID = 20829632.001).
  • [ISSN] 1423-0194
  • [Journal-full-title] Neuroendocrinology
  • [ISO-abbreviation] Neuroendocrinology
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't; Review
  • [Publication-country] Switzerland
  • [Chemical-registry-number] 51110-01-1 / Somatostatin; 98H1T17066 / pasireotide
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4. Lad SP, Patil CG, Laws ER Jr, Katznelson L: The role of inferior petrosal sinus sampling in the diagnostic localization of Cushing's disease. Neurosurg Focus; 2007;23(3):E2
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  • [Title] The role of inferior petrosal sinus sampling in the diagnostic localization of Cushing's disease.
  • Cushing's syndrome can present a complex problem of differential diagnosis.
  • Of cases in which hypercortisolemia results from an adrenocorticotropic hormone (ACTH)-dependent process, approximately 80% are due to a pituitary adenoma (Cushing's disease [CD]), 10% are due to adrenal lesions, and the remaining 10% are secondary to ectopic ACTH secretion.
  • For patients with CD, surgical removal of the pituitary adenoma is the treatment of choice.
  • Thus, localization of the source of ACTH secretion is critical in guiding timely treatment decisions.
  • Inferior petrosal sinus sampling (IPSS) is considered to be the gold standard for confirming the origin of ACTH secretion in patients with Cushing's syndrome.
  • A number of other techniques are discussed including sampling from the cavernous sinus, the jugular vein, and multiple sites to aid the diagnosis and lateralization of ACTH-producing pituitary adenomas.
  • [MeSH-major] Petrosal Sinus Sampling / methods. Pituitary ACTH Hypersecretion / diagnosis

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  • (PMID = 17961020.001).
  • [ISSN] 1092-0684
  • [Journal-full-title] Neurosurgical focus
  • [ISO-abbreviation] Neurosurg Focus
  • [Language] eng
  • [Publication-type] Journal Article; Review
  • [Publication-country] United States
  • [Chemical-registry-number] 9002-60-2 / Adrenocorticotropic Hormone
  • [Number-of-references] 46
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5. Sheehan JM, Douds GL, Hill K, Farace E: Transsphenoidal surgery for pituitary adenoma in elderly patients. Acta Neurochir (Wien); 2008 Jun;150(6):571-4; discussion 574
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  • [Title] Transsphenoidal surgery for pituitary adenoma in elderly patients.
  • BACKGROUND: As the population continues to age, the number of elderly patients with symptomatic pituitary tumours will continue to increase.
  • Little information exists as to the safety of pituitary surgery in this patient population.
  • Eight patients had new hormonal deficits post-operatively (1 ACTH, 3 TSH, 2 ACTH/TSH, 2 vasopressin).
  • Surgical removal of pituitary adenomas should be considered the mainstay of treatment in elderly patients in whom treatment is necessary.
  • [MeSH-major] Adenoma / surgery. Endoscopy / methods. Microsurgery / methods. Pituitary Neoplasms / surgery. Postoperative Complications / etiology. Sphenoid Sinus / surgery
  • [MeSH-minor] Age Factors. Aged. Aged, 80 and over. Female. Follow-Up Studies. Growth Hormone-Secreting Pituitary Adenoma / diagnosis. Growth Hormone-Secreting Pituitary Adenoma / surgery. Humans. Image Processing, Computer-Assisted. Magnetic Resonance Imaging. Male. Risk Factors


6. Yano S, Kawano T, Kudo M, Makino K, Nakamura H, Kai Y, Morioka M, Kuratsu J: Endoscopic endonasal transsphenoidal approach through the bilateral nostrils for pituitary adenomas. Neurol Med Chir (Tokyo); 2009 Jan;49(1):1-7
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  • [Title] Endoscopic endonasal transsphenoidal approach through the bilateral nostrils for pituitary adenomas.
  • The endoscopic endonasal transsphenoidal approach through the bilateral nostrils was evaluated for the treatment of pituitary adenoma.
  • The surgical approach is through the bilateral nostrils via minimal or wide dissection of the septal mucosa, depending on the degree of tumor extension.
  • Tumor removal rate, endocrinological outcomes, and complications were retrospectively assessed in 194 patients with pituitary adenomas who underwent 213 procedures between December 2001 and March 2008.
  • Greater than 95% resection was achieved in 74 of 131 nonfunctioning adenomas, and the removal rate was significantly higher during 2005-2008 compared to 2002-2004 (p < 0.05).
  • Endocrinological remission was achieved in 20 of 26 growth hormone-secreting tumors of Knosp grades 0-2, 16 of 17 microprolactinomas, and 6 of 9 cases of pure Cushing's disease.
  • Postoperative complications were cerebrospinal fluid leakage in 9 cases, visual worsening in 5, anterior pituitary insufficiency in 5, and permanent diabetes insipidus in 2.
  • [MeSH-major] Adenoma / surgery. Endoscopy / methods. Pituitary Neoplasms / surgery
  • [MeSH-minor] Acromegaly / etiology. Adolescent. Adult. Aged. Aged, 80 and over. Diabetes Insipidus / etiology. Female. Humans. Hypopituitarism / etiology. Male. Middle Aged. Nasal Cavity / surgery. Neuronavigation. Pituitary ACTH Hypersecretion / etiology. Pituitary ACTH Hypersecretion / surgery. Postoperative Complications / etiology. Prolactinoma / surgery. Remission Induction. Retrospective Studies. Sphenoid Bone / surgery. Subdural Effusion / etiology. Vision Disorders / etiology. Young Adult

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  • (PMID = 19168995.001).
  • [ISSN] 1349-8029
  • [Journal-full-title] Neurologia medico-chirurgica
  • [ISO-abbreviation] Neurol. Med. Chir. (Tokyo)
  • [Language] eng
  • [Publication-type] Case Reports; Evaluation Studies; Journal Article
  • [Publication-country] Japan
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7. de Bruin C, Feelders RA, Lamberts SW, Hofland LJ: Somatostatin and dopamine receptors as targets for medical treatment of Cushing's Syndrome. Rev Endocr Metab Disord; 2009 Jun;10(2):91-102
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  • [Title] Somatostatin and dopamine receptors as targets for medical treatment of Cushing's Syndrome.
  • Somatostatin (SS) and dopamine (DA) receptors are widely expressed in neuroendocrine tumours that cause Cushing's Syndrome (CS).
  • In Cushing's disease, corticotroph adenomas mainly express dopamine receptor subtype 2 (D(2)) and somatostatin receptor subtype 5 (sst(5)), whereas sst(2) is expressed at lower levels.
  • Activation of these receptors can inhibit ACTH-release in primary cultured corticotroph adenomas and compounds that target either sst(5) (pasireotide, or SOM230) or D(2) (cabergoline) have shown significant efficacy in subsets of patients in recent clinical studies.
  • In selected cases of Ectopic ACTH-producing Syndrome (EAS), the sst(2)-preferring compound octreotide is able to reduce cortisol levels effectively.
  • In both normal adrenal tissue as well as in adrenal adenomas and carcinomas that cause CS, sst and DA receptor expression has been demonstrated.
  • [MeSH-minor] ACTH-Secreting Pituitary Adenoma / drug therapy. Adrenocorticotropic Hormone / metabolism. Animals. Antineoplastic Agents / therapeutic use. Humans

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  • (PMID = 18642088.001).
  • [ISSN] 1573-2606
  • [Journal-full-title] Reviews in endocrine & metabolic disorders
  • [ISO-abbreviation] Rev Endocr Metab Disord
  • [Language] eng
  • [Publication-type] Journal Article; Review
  • [Publication-country] Germany
  • [Chemical-registry-number] 0 / Antineoplastic Agents; 0 / Receptors, Dopamine D2; 0 / Receptors, Somatostatin; 9002-60-2 / Adrenocorticotropic Hormone
  • [Number-of-references] 115
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8. Castinetti F, Brue T: [Radiotherapy and radiosurgery of pituitary adenomas]. Presse Med; 2009 Jan;38(1):133-9
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  • [Title] [Radiotherapy and radiosurgery of pituitary adenomas].
  • There are two principal types of treatment for pituitary adenomas: fractionated conventional radiation therapy, based on biological selectivity, and radiosurgery, which is delivered in a single dose, based on anatomic selectivity and indicated preferentially for small tumors sufficiently distant from the optic chiasm.
  • Maximum antisecretory efficacy is not reached immediately: this delay is longer for conventional radiation therapy (5-10 years) than for radiosurgery (2-3 years).
  • Radiation therapy and radiosurgery make it possible to stabilize or diminish tumor volume in 70-100% of cases.
  • This is especially useful in the case of an active residue after surgery for non-secreting adenoma, but the long-term side effects of radiation must be borne in mind.
  • The principal side effect is the onset of a pituitary deficiency (in more than 50% of cases after radiation therapy, 20% after radiosurgery).
  • [MeSH-major] Adenoma / radiotherapy. Pituitary Neoplasms / radiotherapy. Radiosurgery
  • [MeSH-minor] Acromegaly / therapy. Antineoplastic Agents / therapeutic use. Decision Trees. Dose Fractionation. Humans. Hypopituitarism / etiology. Pituitary ACTH Hypersecretion / therapy. Pituitary Gland / radiation effects. Pituitary Gland / secretion. Postoperative Complications. Prolactinoma / radiotherapy. Prolactinoma / secretion. Prolactinoma / surgery. Radiation Injuries / etiology. Risk Factors. Time Factors. Treatment Outcome

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  • (PMID = 18954960.001).
  • [ISSN] 2213-0276
  • [Journal-full-title] Presse medicale (Paris, France : 1983)
  • [ISO-abbreviation] Presse Med
  • [Language] fre
  • [Publication-type] English Abstract; Journal Article
  • [Publication-country] France
  • [Chemical-registry-number] 0 / Antineoplastic Agents
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9. Alexandraki KI, Grossman AB: Pituitary-targeted medical therapy of Cushing's disease. Expert Opin Investig Drugs; 2008 May;17(5):669-77
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  • [Title] Pituitary-targeted medical therapy of Cushing's disease.
  • BACKGROUND: The goals of ideal medical therapy for Cushing's disease should be to target the aetiology of the disorder, as is the case for surgery, which is the current 'gold standard' treatment.
  • However, no effective drug that directly and reliably targets the adrenocorticotropin-secreting pituitary adenoma has yet been found.
  • OBJECTIVE: To summarise pituitary-targeted medical treatment of Cushing's disease.
  • METHODS: Compounds with neuromodulatory properties and ligands of different nuclear hormone receptors involved in hypothalamo-pituitary regulation have been investigated.
  • RESULTS: The somatostatin analogue pasireotide and the dopamine agonist cabergoline, as well as their combination, show some therapeutic promise in the medical therapy of Cushing's disease.
  • CONCLUSION: Since a percentage of patients treated with surgery are not cured, or improve and subsequently relapse, there is an urgent need for effective medical therapies for this disorder.
  • [MeSH-major] Dopamine Agonists. Ergolines. Oligopeptides. Pituitary ACTH Hypersecretion / drug therapy. Pituitary Gland / drug effects. Somatostatin / analogs & derivatives

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  • [ErratumIn] Expert Opin Investig Drugs. 2008 Jul;17(7):1141
  • (PMID = 18447593.001).
  • [ISSN] 1744-7658
  • [Journal-full-title] Expert opinion on investigational drugs
  • [ISO-abbreviation] Expert Opin Investig Drugs
  • [Language] eng
  • [Publication-type] Journal Article; Review
  • [Publication-country] England
  • [Chemical-registry-number] 0 / Dopamine Agonists; 0 / Ergolines; 0 / Neurotransmitter Agents; 0 / Oligopeptides; 51110-01-1 / Somatostatin; 9002-60-2 / Adrenocorticotropic Hormone; 98H1T17066 / pasireotide; LL60K9J05T / cabergoline
  • [Number-of-references] 100
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10. Gondim JA, Schops M, de Almeida JP, de Albuquerque LA, Gomes E, Ferraz T, Barroso FA: Endoscopic endonasal transsphenoidal surgery: surgical results of 228 pituitary adenomas treated in a pituitary center. Pituitary; 2010;13(1):68-77
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  • [Title] Endoscopic endonasal transsphenoidal surgery: surgical results of 228 pituitary adenomas treated in a pituitary center.
  • Pituitary tumors are challenging tumors in the sellar region.
  • Surgical approaches to the pituitary have undergone numerous refinements over the last 100 years.
  • The introduction of the endoscope have revolutionized pituitary surgery.
  • The aim of this study is to report the results of a consecutive series of patients undergoing pituitary surgery using a pure endoscopic endonasal approach and to evaluate the efficacy and safety of this procedure.
  • We reviewed the data of 228 consecutive patients who underwent endonasal transsphenoidal adenoma removal over an 10-year period.
  • Tumor removal rate, endocrinological outcomes, and complications were retrospectively assessed in 228 patients with pituitary adenomas who underwent 251 procedures between December 1998 and December 2007.
  • There were 93 nonfunctioning adenomas, 58 growth hormone-secreting, 41 prolactin-secreting, 28 adrenocorticotropin hormone secreting, 7 FSH-LH secreting and 1 thyroid-stimulating hormone-secreting adenomas.
  • The remission results for patients with nonfunctioning adenomas was 83% and for functioning adenomas were 76.3% (70.6% for GH hormone-secreting, 85.3% for prolactin hormone-secreting, 71.4% for ACTH hormone-secreting, 85.7% for FSH-LH hormone-secreting and 100% for TSH hormone-secreting), with no recurrence at the time of the last follow-up.
  • The endoscopic endonasal approach for resection of pituitary adenomas, provides acceptable results representing a safe alternative procedure to the microscopic approach.
  • This less invasive method, associated with a small number of complications, provides excellent tumor removal rates and represents an important tool for the achievement of good results in the pituitary surgery, mainly for the complete removal of large adenomas.
  • [MeSH-major] Adenoma / surgery. Endoscopy / methods. Pituitary Neoplasms / surgery
  • [MeSH-minor] Humans. Pituitary Hormones / blood. Postoperative Complications. Retrospective Studies

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  • (PMID = 19697135.001).
  • [ISSN] 1573-7403
  • [Journal-full-title] Pituitary
  • [ISO-abbreviation] Pituitary
  • [Language] eng
  • [Publication-type] Evaluation Studies; Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Pituitary Hormones
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11. Siddiqui AA, Bashir SH: Giant pituitary macroadenoma at the age of 4 months: case report and review of the literature. Childs Nerv Syst; 2006 Mar;22(3):290-4
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  • [Title] Giant pituitary macroadenoma at the age of 4 months: case report and review of the literature.
  • CASE REPORT: Adrenocorticotropic hormone (ACTH)-secreting pituitary adenoma is extremely rare.
  • We report the youngest patient of Cushing's disease due to ACTH-secreting pituitary macroadenoma at the age of 4 months.
  • Serum cortisol level was 97 microg/dl, with increased secretion of urinary free cortisol; plasma ACTH level was 353 pg/ml.
  • Magnetic resonance imaging of the brain showed a large contrast-enhancing solid mass sitting in the sellar region, with suprasellar and lateral extension.
  • Surgical resection was done, and immunohistochemistry confirmed the diagnosis of ACTH-secreting pituitary adenoma.
  • CONCLUSION: Cushing's disease due to ACTH-secreting pituitary macroadenoma is a possible diagnosis in early infancy.
  • This surgical morbidity is possibly attributed to difficult peroperative hemostasis due to vasculopathy in Cushing's disease, which leads to excessive blood loss, adverse hemodynamic changes, myocardial dysfunction and disseminated intravascular coagulopathy.
  • [MeSH-major] ACTH-Secreting Pituitary Adenoma / surgery. Adenoma / surgery. Cushing Syndrome / surgery. Disseminated Intravascular Coagulation / etiology. Postoperative Complications / etiology

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  • (PMID = 16047217.001).
  • [ISSN] 0256-7040
  • [Journal-full-title] Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery
  • [ISO-abbreviation] Childs Nerv Syst
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article; Review
  • [Publication-country] Germany
  • [Number-of-references] 15
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12. Ebisawa T, Tojo K, Tajima N, Kamio M, Oki Y, Ono K, Sasano H: Immunohistochemical analysis of 11-beta-hydroxysteroid dehydrogenase type 2 and glucocorticoid receptor in subclinical Cushing's disease due to pituitary macroadenoma. Endocr Pathol; 2008;19(4):252-60
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  • [Title] Immunohistochemical analysis of 11-beta-hydroxysteroid dehydrogenase type 2 and glucocorticoid receptor in subclinical Cushing's disease due to pituitary macroadenoma.
  • Subclinical Cushing's disease (SCD) is characterized by lack of clinically evident Cushingoid features, despite abnormal hypersecretion of ACTH.
  • Nearly half the cases of SCD are due to macroadenomas, and in the majority of them, ACTH secretion is not inhibited even by high-dose dexamethasone.
  • Impaired glucocorticoid (GC) action may be correlated with the proliferation and development of pituitary macroadenomas causing SCD.
  • In this study, immunohistochemical analysis of the resected tumors were performed to evaluate the expression of 11beta-hydroxysteroid dehydrogenase type 2 (11betaHSD2) and glucocorticoid receptor (GR) in pituitary tissues obtained from two SCD (macroadenomas), eight Cushing's disease (CD) (microadenomas), nine acromegaly, and nine normal pituitary (NP).
  • [MeSH-major] 11-beta-Hydroxysteroid Dehydrogenase Type 2 / metabolism. ACTH-Secreting Pituitary Adenoma / metabolism. Adenoma / metabolism. Pituitary ACTH Hypersecretion / metabolism. Receptors, Glucocorticoid / metabolism
  • [MeSH-minor] Acromegaly / metabolism. Acromegaly / pathology. Adolescent. Adrenocorticotropic Hormone / metabolism. Adult. Aged. Female. Humans. Immunohistochemistry / methods. Male. Middle Aged. Pituitary Gland / metabolism. Pituitary Gland / pathology. Young Adult

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  • (PMID = 19048413.001).
  • [ISSN] 1046-3976
  • [Journal-full-title] Endocrine pathology
  • [ISO-abbreviation] Endocr. Pathol.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Receptors, Glucocorticoid; 9002-60-2 / Adrenocorticotropic Hormone; EC 1.1.1.146 / 11-beta-Hydroxysteroid Dehydrogenase Type 2
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13. Brito J, Sáez L, Lemp M, Liberman C, Michelsen H, Araya AV: [Immunohistochemistry for pituitary hormones and Ki-67 in growth hormone producing pituitary adenomas]. Rev Med Chil; 2008 Jul;136(7):831-6
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  • [Title] [Immunohistochemistry for pituitary hormones and Ki-67 in growth hormone producing pituitary adenomas].
  • [Transliterated title] Evaluación por inmunohistoquímica de la expresión de hormonas hipofisiarias y del marcador de proliferación celular Ki-67 en tejido de adenomas causantes de acromegalia.
  • BACKGROUND: Growth hormone (GH) producing adenomas, frequently express several hormones.
  • AIM: To measure the immunohistochemical hormone expression in pituitary adenomas, excised from patients with acromegaly.
  • To determine if the plurihormonal condition of these adenomas is associated with a higher proliferative capacity, assessed through the expression of Ki-67.
  • MATERIAL AND METHODS: Forty one paraffin embedded surgical samples of pituitary adenomas from patients with acromegalia were studied.
  • Immunohistochemistry for GH, prolactin (PRL), follicle stimulating hormone (FSH), luteinizing hormone (LH), thyroid stimulating hormone (TSH), adrenocorticotropin (ACTH) and for the expression of Ki-67 was carried out.
  • CONCLUSIONS: Half of GH producing pituitary adenomas are plurihormonal.
  • There are no differences in the expression of Ki-67 between mono and plurihormonal adenomas.
  • [MeSH-major] Adenoma / metabolism. Growth Hormone-Secreting Pituitary Adenoma / metabolism. Human Growth Hormone / metabolism. Ki-67 Antigen / metabolism. Neoplasm Proteins / metabolism. Pituitary Neoplasms / metabolism
  • [MeSH-minor] Acromegaly / physiopathology. Acromegaly / surgery. Adrenocorticotropic Hormone / analysis. Adult. Aged. Female. Follicle Stimulating Hormone / analysis. Humans. Immunohistochemistry. Male. Middle Aged. Prolactin / analysis. Proliferating Cell Nuclear Antigen / analysis. Statistics, Nonparametric. Thyrotropin / analysis

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  • (PMID = 18949157.001).
  • [ISSN] 0034-9887
  • [Journal-full-title] Revista médica de Chile
  • [ISO-abbreviation] Rev Med Chil
  • [Language] spa
  • [Publication-type] English Abstract; Journal Article
  • [Publication-country] Chile
  • [Chemical-registry-number] 0 / Ki-67 Antigen; 0 / Neoplasm Proteins; 0 / Proliferating Cell Nuclear Antigen; 12629-01-5 / Human Growth Hormone; 9002-60-2 / Adrenocorticotropic Hormone; 9002-62-4 / Prolactin; 9002-68-0 / Follicle Stimulating Hormone; 9002-71-5 / Thyrotropin
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14. Pisarek H, Pawlikowski M, Kunert-Radek J, Radek M: Expression of somatostatin receptor subtypes in human pituitary adenomas -- immunohistochemical studies. Endokrynol Pol; 2009 Jul-Aug;60(4):240-51
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  • [Title] Expression of somatostatin receptor subtypes in human pituitary adenomas -- immunohistochemical studies.
  • BACKGROUND: The highly variable expression of SSTR subtypes in pituitary adenomas (PA) may partially explain why the subgroup of somatotropinomas or other adenomas do not respond to the therapeutic action of currently used long-acting somatostatin analogues like octreotide or lanreotide.
  • RESULTS: The pattern of SSTR immunostaining (estimated according to the percentage frequency of appearance) was in acromegaly: SSTR 5 > SSTR 1 > SSTR 2A = SSTR 3 > SSTR 2B, in prolactinomas: SSTR 2B = SSTR 3 = SSTR 5 > SSTR 1 = SSTR 2A, in gonadotropinomas: SSTR 3 > SSTR 2B > SSTR 1 = SSTR 2A > SSTR 5, in corticotropinomas: SSTR 2A > SSTR 1 = SSTR 3 > SSTR 5 > SSTR 2B.
  • In PA immunonegative for pituitary hormones, we noticed only a weak staining of all receptor subtypes including SSTR 4.
  • In plurihormonal adenomas with positive GH phenotype the staining pattern was: SSTR 5 > SSTR 1 = SSTR 2B and in plurihormonal PA with negative GH phenotype: SSTR 1 = SSTR 5 > SSTR 2A = SSTR 2B = SSTR 3.
  • In plurihormonal adenoma with ACTH immunopositivity, the staining pattern was: SSTR = SSTR 2A = SSTR 3 = SSTR 5.
  • SSTR 1 and SSTR 5 were the most frequent subtypes of somatostatin receptor in plurihormonal adenomas without ACTH expression.
  • Apart from applying SSTR 2 and SSTR 5-preferring octreotide and lanreotide - newly synthesized multiligand analogues, such as SOM 230, KE 108, or other SST selective analogues, may represent a further useful approach for the treatment, especially in cases other than somatotropinoma or thyrotropinoma.
  • [MeSH-major] Adenoma / metabolism. Pituitary Neoplasms / metabolism. Receptors, Somatostatin / metabolism

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  • (PMID = 19753537.001).
  • [ISSN] 0423-104X
  • [Journal-full-title] Endokrynologia Polska
  • [ISO-abbreviation] Endokrynol Pol
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] Poland
  • [Chemical-registry-number] 0 / Antineoplastic Agents, Hormonal; 0 / Peptides, Cyclic; 0 / Protein Isoforms; 0 / Receptors, Somatostatin; 0G3DE8943Y / lanreotide; 51110-01-1 / Somatostatin; RWM8CCW8GP / Octreotide
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15. Revill K, Dudley KJ, Clayton RN, McNicol AM, Farrell WE: Loss of neuronatin expression is associated with promoter hypermethylation in pituitary adenoma. Endocr Relat Cancer; 2009 Jun;16(2):537-48
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  • [Title] Loss of neuronatin expression is associated with promoter hypermethylation in pituitary adenoma.
  • The imprinted gene, neuronatin (NNAT), is one of the most abundant transcripts in the pituitary and is thought to be involved in the development and maturation of this gland.
  • In a recent whole-genome approach, exploiting a pituitary tumour cell line, we identified hypermethylation associated loss of NNAT.
  • In this report, we determined the expression pattern of NNAT in individual cell types of the normal gland and within each of the different pituitary adenoma subtypes.
  • Immunohistochemical (IHC) co-localization studies of normal pituitaries showed that each of the hormone secreting cells (GH, PRL, ACTH, FSH and TSH) expressed NNAT.
  • However, 33 out of 47 adenomas comprising, 11 somatotrophinomas, 10 prolactinomas, 12 corticotrophinomas and 14 non-functioning tumours, irrespective of subtype failed to express either NNAT transcript or protein as determined by quantitative real-time RT-PCR and IHC respectively.
  • In normal pituitaries and adenomas that expressed NNAT the promoter-associated CpG island showed characteristics of an imprinted gene where approximately 50% of molecules were densely methylated.
  • However, in the majority of adenomas that showed loss or significantly reduced expression of NNAT, relative to normal pituitaries, the gene-associated CpG island showed significantly increased methylation.
  • Collectively, these findings point to an important role for NNAT in the pituitary and perhaps tumour development in this gland.
  • [MeSH-major] DNA Methylation. Membrane Proteins / genetics. Nerve Tissue Proteins / genetics. Pituitary Gland / pathology. Pituitary Neoplasms / genetics. Promoter Regions, Genetic / genetics
  • [MeSH-minor] Animals. CpG Islands. Gene Silencing. Humans. Immunoenzyme Techniques. Loss of Heterozygosity. Mice. RNA, Messenger / genetics. RNA, Messenger / metabolism. Reverse Transcriptase Polymerase Chain Reaction. Tumor Cells, Cultured

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  • (PMID = 19218280.001).
  • [ISSN] 1351-0088
  • [Journal-full-title] Endocrine-related cancer
  • [ISO-abbreviation] Endocr. Relat. Cancer
  • [Language] eng
  • [Publication-type] Comparative Study; Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] England
  • [Chemical-registry-number] 0 / Membrane Proteins; 0 / NNAT protein, human; 0 / Nerve Tissue Proteins; 0 / RNA, Messenger
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16. Choe JH, Lee KS, Jeun SS, Cho JH, Hong YK: Endocrine outcome of endoscopic endonasal transsphenoidal surgery in functioning pituitary adenomas. J Korean Neurosurg Soc; 2008 Sep;44(3):151-5
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  • [Title] Endocrine outcome of endoscopic endonasal transsphenoidal surgery in functioning pituitary adenomas.
  • OBJECTIVE: Microscopic and endoscopic transsphenoidal approach (TSA) are major surgical techniques in the treatment of pituitary adenoma.
  • Endoscopic endonasal transsphenoidal approach (EETSA) has been increasingly used for pituitary adenomas, however, its surgical outcome particularly in functioning pituitary adenoma has been debated.
  • Here, we investigated the endocrine outcome of the patients with growth hormone (GH) and adrenocorticotropic hormone (ACTH) secreting pituitary adenoma treated by EETSA.
  • METHODS: We treated 80 patients with pituitary adenoma by EETSA since 2004, of which 12 patients were affected by functioning pituitary adenomas (9 GH, 3 ACTH, 0 PRL; 9 macro, 3 micro).
  • Surgical outcome of those patients treated by EETSA was compared with that of the 11 functioning pituitary adenoma patients (8 GH, 3 ACTH; 8 macro, 3 micro) who underwent sublabial microscopic TSA between 1997 and 2003.
  • CONCLUSION: EETSA appears to be an effective and safe method for the treatment of functioning pituitary adenomas.

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  • [Cites] Am J Rhinol. 2007 Jul-Aug;21(4):510-4 [17882925.001]
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  • (PMID = 19096666.001).
  • [ISSN] 2005-3711
  • [Journal-full-title] Journal of Korean Neurosurgical Society
  • [ISO-abbreviation] J Korean Neurosurg Soc
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] Korea (South)
  • [Other-IDs] NLM/ PMC2588303
  • [Keywords] NOTNLM ; ACTH-secreting pituitary adenoma / Endoscopy / GH-secreting pituitary adenoma / Transsphenoidal approach
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17. Ewing I, Pedder-Smith S, Franchi G, Ruscica M, Emery M, Vax V, Garcia E, Czirják S, Hanzély Z, Kola B, Korbonits M, Grossman AB: A mutation and expression analysis of the oncogene BRAF in pituitary adenomas. Clin Endocrinol (Oxf); 2007 Mar;66(3):348-52
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  • [Title] A mutation and expression analysis of the oncogene BRAF in pituitary adenomas.
  • We speculated that this same gene may be either mutated at this site, or overexpressed, in pituitary adenomas.
  • DESIGN AND MEASUREMENTS: We sequenced 37 pituitary adenomas for a mutation at the V600E position.
  • In addition, we investigated B-Raf mRNA expression in normal pituitary (n = 5) and nonfunctioning pituitary adenomas (NFPA) (n = 6) by semiquantitative PCR, and in a further 27 pituitary adenomas of various types and 10 normal pituitaries using real-time quantitative PCR.
  • B-Raf mRNA was overexpressed in pituitary adenomas compared to normal pituitary, and this was entirely due to overexpression in NFPAs.
  • CONCLUSIONS: Mutations previously seen in the majority of melanomas and a substantial minority of papillary thyroid carcinomas are not a frequent finding in pituitary adenomas.
  • [MeSH-major] Adenoma / chemistry. DNA Mutational Analysis. Gene Expression Regulation, Neoplastic. Pituitary Neoplasms / chemistry. Proto-Oncogene Proteins B-raf / genetics. RNA, Messenger / analysis
  • [MeSH-minor] ACTH-Secreting Pituitary Adenoma / chemistry. Case-Control Studies. Growth Hormone-Secreting Pituitary Adenoma / chemistry. Humans. Polymerase Chain Reaction / methods. Prolactinoma / chemistry. Statistics, Nonparametric

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  • (PMID = 17302867.001).
  • [ISSN] 0300-0664
  • [Journal-full-title] Clinical endocrinology
  • [ISO-abbreviation] Clin. Endocrinol. (Oxf)
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] England
  • [Chemical-registry-number] 0 / RNA, Messenger; EC 2.7.11.1 / BRAF protein, human; EC 2.7.11.1 / Proto-Oncogene Proteins B-raf
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18. Utz A, Biller BM: The role of bilateral inferior petrosal sinus sampling in the diagnosis of Cushing's syndrome. Arq Bras Endocrinol Metabol; 2007 Nov;51(8):1329-38
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  • [Title] The role of bilateral inferior petrosal sinus sampling in the diagnosis of Cushing's syndrome.
  • Adrenocorticotropin hormone (ACTH)-dependent Cushing's syndrome is most often due to a pituitary corticotroph adenoma, with ectopic ACTH-secreting tumors representing approximately 15% of cases.
  • BIPSS is an interventional radiology procedure in which ACTH levels obtained from venous drainage very near the pituitary gland are compared to peripheral blood levels before and after corticotropin hormone (CRH) stimulation.
  • A gradient between these two locations indicates pituitary Cushing's, whereas the absence of a gradient suggests ectopic Cushing's.
  • Accurate BIPSS results require hypercortisolemia to suppress normal corticotroph ACTH production and hypercortisolemia at the time of the BIPSS to assure excessive ACTH secretion.
  • In some cases, intrapituitary gradients from side-to-side can be helpful to localize small corticotroph adenomas within the sella.
  • [MeSH-major] ACTH Syndrome, Ectopic / diagnosis. Cushing Syndrome / diagnosis. Petrosal Sinus Sampling
  • [MeSH-minor] ACTH-Secreting Pituitary Adenoma / blood. ACTH-Secreting Pituitary Adenoma / diagnosis. ACTH-Secreting Pituitary Adenoma / secretion. Adenoma / blood. Adenoma / diagnosis. Adenoma / secretion. Adrenocorticotropic Hormone / blood. Corticotropin-Releasing Hormone. Diagnosis, Differential. Humans. Pituitary Neoplasms / blood. Pituitary Neoplasms / diagnosis. Pituitary Neoplasms / secretion. Sensitivity and Specificity

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  • (PMID = 18209871.001).
  • [ISSN] 0004-2730
  • [Journal-full-title] Arquivos brasileiros de endocrinologia e metabologia
  • [ISO-abbreviation] Arq Bras Endocrinol Metabol
  • [Language] eng
  • [Publication-type] Journal Article; Review
  • [Publication-country] Brazil
  • [Chemical-registry-number] 9002-60-2 / Adrenocorticotropic Hormone; 9015-71-8 / Corticotropin-Releasing Hormone
  • [Number-of-references] 37
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19. Batista DL, Zhang X, Gejman R, Ansell PJ, Zhou Y, Johnson SA, Swearingen B, Hedley-Whyte ET, Stratakis CA, Klibanski A: The effects of SOM230 on cell proliferation and adrenocorticotropin secretion in human corticotroph pituitary adenomas. J Clin Endocrinol Metab; 2006 Nov;91(11):4482-8
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  • [Title] The effects of SOM230 on cell proliferation and adrenocorticotropin secretion in human corticotroph pituitary adenomas.
  • CONTEXT: There is no tumor-directed medical therapy available for Cushing's disease.
  • OBJECTIVE: The objective was to determine the in vitro effect of the somatostatin analog pasireotide (SOM230) on cell proliferation in human corticotroph tumors.
  • DESIGN/METHODS: Expression of somatostatin receptors (SSTR 1-5) was determined by quantitative RT-PCR in 13 human corticotroph tumors and by immunohistochemistry (IHC) in 12 of the 13 tumors.
  • SOM230 effects on cell proliferation and ACTH release were evaluated in vitro using primary cultures of six of the 13 human corticotroph adenomas.
  • RESULTS: In our series, we found expression of SSTR subtypes 1, 2, 4, and 5 in human corticotroph tumors by quantitative RT-PCR.
  • Significant suppression of cell proliferation was observed in all tumors cultured (percent suppression range: 10-70%; P = 0.045-0.001).
  • SOM230 inhibited ACTH secretion in five of the six tumors cultured (percent suppression range: 23-56%; P = 0.042-0.001).
  • CONCLUSION: Corticotroph tumors express multiple SSTR subtypes.
  • SOM230 significantly suppressed cell proliferation and ACTH secretion in primary cultures of human corticotroph tumors.
  • These in vitro results support the hypothesis that SOM230 may have a role in the medical therapy of corticotroph tumors.
  • [MeSH-major] ACTH-Secreting Pituitary Adenoma / drug therapy. Adenoma / drug therapy. Adrenocorticotropic Hormone / secretion. Cell Proliferation / drug effects. Somatostatin / analogs & derivatives
  • [MeSH-minor] Adolescent. Adult. Child. Female. Humans. Immunohistochemistry. In Vitro Techniques. Male. Middle Aged. Pituitary ACTH Hypersecretion / drug therapy. RNA, Messenger / metabolism. Receptors, Somatostatin / metabolism. Tumor Cells, Cultured

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  • (PMID = 16940446.001).
  • [ISSN] 0021-972X
  • [Journal-full-title] The Journal of clinical endocrinology and metabolism
  • [ISO-abbreviation] J. Clin. Endocrinol. Metab.
  • [Language] eng
  • [Grant] United States / Intramural NIH HHS / /
  • [Publication-type] Evaluation Studies; Journal Article; Research Support, N.I.H., Intramural; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / RNA, Messenger; 0 / Receptors, Somatostatin; 51110-01-1 / Somatostatin; 9002-60-2 / Adrenocorticotropic Hormone; 98H1T17066 / pasireotide
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20. Swords FM, Monson JP, Besser GM, Chew SL, Drake WM, Grossman AB, Plowman PN: Gamma knife radiosurgery: a safe and effective salvage treatment for pituitary tumours not controlled despite conventional radiotherapy. Eur J Endocrinol; 2009 Dec;161(6):819-28
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  • [Title] Gamma knife radiosurgery: a safe and effective salvage treatment for pituitary tumours not controlled despite conventional radiotherapy.
  • OBJECTIVE: We report the use of 'gamma knife' (GK) radiosurgery in 25 patients with pituitary adenomas not cured despite conventional therapy, including external beam radiotherapy.
  • PATIENTS AND METHODS: All patients had previously received conventional radiotherapy for a mean of 11.8 years prior to receiving GK; 23 out of 25 had also undergone pituitary surgery on at least one occasion.
  • Seventeen had hyperfunctioning adenomas that still required medical therapy without an adequate biochemical control--ten somatotroph adenomas, six corticotroph adenomas and one prolactinoma, while eight patients had non-functioning pituitary adenomas (NFPAs).
  • A total of 75% NFPAs showed disease stabilisation or shrinkage post GK.
  • The results in corticotroph adenomas were variable.
  • Prior to GK, 72% of the patients were panhypopituitary, and 42% of the remainder have developed new anterior pituitary hormone deficiencies to date.
  • CONCLUSIONS: These data indicate that GK is a safe and effective adjunctive treatment for patients with NFPAs and acromegaly not satisfactorily controlled with surgery and radiotherapy.

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  • (PMID = 19773368.001).
  • [ISSN] 1479-683X
  • [Journal-full-title] European journal of endocrinology
  • [ISO-abbreviation] Eur. J. Endocrinol.
  • [Language] ENG
  • [Publication-type] Journal Article
  • [Publication-country] England
  • [Chemical-registry-number] 12629-01-5 / Human Growth Hormone; 67763-96-6 / Insulin-Like Growth Factor I
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21. Hofland LJ: Somatostatin and somatostatin receptors in Cushing's disease. Mol Cell Endocrinol; 2008 May 14;286(1-2):199-205
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  • [Title] Somatostatin and somatostatin receptors in Cushing's disease.
  • Cushing's disease is caused by an ACTH secreting pituitary adenoma.
  • Somatostatin (SS) receptors (sst) are expressed on normal and tumoral corticotroph cells.
  • However, the role of somatostatin and in particular the current clinically available sst(2)-preferring SS analogs in the regulation of normal ACTH secretion, as well as in lowering ACTH and cortisol hypersecretion in patients with Cushing's disease, has been shown to be limited.
  • Recent studies have provided renewed insights into the expression of sst subtypes, as well as into the functional role of SS-analogs in the regulation of ACTH secretion by corticotroph tumors.
  • Sst(2) and sst(5) seem the predominantly expressed sst in corticotroph adenoma cells and targeting both these receptors with a new generation of multiligand SS analogs showed promising effects in terms of lowering ACTH release and urinary free cortisol (UFC) levels in patients with Cushing's disease.
  • In this review an overview of the current insights into the role of SS and sst in the regulation of normal and pathological ACTH secretion is provided.
  • [MeSH-major] ACTH-Secreting Pituitary Adenoma / drug therapy. Adenoma / drug therapy. Pituitary ACTH Hypersecretion / drug therapy. Pituitary Neoplasms / drug therapy. Receptors, Somatostatin / metabolism. Somatostatin / analogs & derivatives. Somatostatin / metabolism

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  • (PMID = 18221833.001).
  • [ISSN] 1872-8057
  • [Journal-full-title] Molecular and cellular endocrinology
  • [ISO-abbreviation] Mol. Cell. Endocrinol.
  • [Language] eng
  • [Publication-type] Journal Article; Review
  • [Publication-country] Ireland
  • [Chemical-registry-number] 0 / Antineoplastic Agents, Hormonal; 0 / Hormone Antagonists; 0 / Receptors, Somatostatin; 51110-01-1 / Somatostatin; 9002-60-2 / Adrenocorticotropic Hormone; WI4X0X7BPJ / Hydrocortisone
  • [Number-of-references] 69
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22. Salgado LR, Fragoso MC, Knoepfelmacher M, Machado MC, Domenice S, Pereira MA, de Mendonça BB: Ectopic ACTH syndrome: our experience with 25 cases. Eur J Endocrinol; 2006 Nov;155(5):725-33
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  • [Title] Ectopic ACTH syndrome: our experience with 25 cases.
  • OBJECTIVE: Ectopic ACTH syndrome (EAS) occurs in about 5-10% of all patients with ACTH-dependent hypercortisolism with most of them caused by intrathoracic neoplasms.
  • We assessed the accuracy of dynamic tests, inferior petrosal sinus sampling (IPSS) using desmopressin, and imaging in the work-up diagnosis of EAS.
  • DESIGN AND SUBJECTS: Tumor markers, imaging, and outcome data from 25 patients (13F/12M) aged 18-72 years.
  • High dexamethasone suppression test (HDDST), desmopressin test, GHRP-6 test, corticotropin-releasing hormone (CRH) test, IPSS, computed tomography (CT), magnetic resonance imaging (MRI), and (111)In-pentetreotide scintigraphy were revised.
  • In 13 patients who underwent desmopressin test, ACTH- and cortisol-positive responses were seen in six and five patients respectively.
  • In the seven patients submitted to IPSS using desmopressin in six of them, none had ACTH gradients.
  • Fourteen patients had intrathoracic tumors, five had pheochromocytomas, three had pancreatic tumors, one had a glomic tumor, and had three occult tumors.
  • CONCLUSIONS: IPSS with desmopressin was helpful for differential diagnosis.

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  • (PMID = 17062889.001).
  • [ISSN] 0804-4643
  • [Journal-full-title] European journal of endocrinology
  • [ISO-abbreviation] Eur. J. Endocrinol.
  • [Language] ENG
  • [Publication-type] Journal Article
  • [Publication-country] England
  • [Chemical-registry-number] 0 / Oligopeptides; 7S5I7G3JQL / Dexamethasone; 87616-84-0 / growth hormone releasing hexapeptide; 9015-71-8 / Corticotropin-Releasing Hormone; ENR1LLB0FP / Deamino Arginine Vasopressin
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23. Tagliati F, Gentilin E, Buratto M, Molè D, degli Uberti EC, Zatelli MC: Magmas, a gene newly identified as overexpressed in human and mouse ACTH-secreting pituitary adenomas, protects pituitary cells from apoptotic stimuli. Endocrinology; 2010 Oct;151(10):4635-42
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  • [Title] Magmas, a gene newly identified as overexpressed in human and mouse ACTH-secreting pituitary adenomas, protects pituitary cells from apoptotic stimuli.
  • Pituitary tumors are mostly benign, being locally invasive in 5-35% of cases.
  • Deregulation of several genes has been suggested as a possible alteration underlying the development and progression of pituitary tumors.
  • We here report the identification of a cDNA, corresponding to Magmas gene (mitochondria-associated protein involved in granulocyte-macrophage colony-stimulating factor signal transduction), which is highly expressed in two different ACTH-secreting mouse pituitary adenoma cell lines as compared with normal pituitary as well as in two thirds of 64 examined pituitary adenomas as compared with human normal pituitary.
  • Tim 16, the mitochondrial protein encoded by Magmas, was indeed expressed in a mouse ACTH-secreting pituitary adenoma cell line, AtT-20 D16v-F2 cells, in a subcellular compartment likely corresponding to mitochondria.
  • Our data demonstrate that Magmas is overexpressed in mouse and human ACTH-secreting pituitary adenomas.
  • Moreover, our results show that Magmas protects pituitary cells from apoptosis, suggesting its possible involvement in neoplastic transformation.
  • [MeSH-major] ACTH-Secreting Pituitary Adenoma / genetics. Adenoma / genetics. Apoptosis / genetics. Mitochondrial Proteins / physiology
  • [MeSH-minor] Animals. Cell Proliferation. Cell Transformation, Neoplastic / genetics. Cell Transformation, Neoplastic / pathology. Cells, Cultured. Cytoprotection / drug effects. Cytoprotection / genetics. Gene Expression Regulation, Neoplastic / drug effects. Humans. Mice. Pituitary Gland / metabolism. RNA, Small Interfering / pharmacology. Up-Regulation / drug effects


24. Bondioni S, Mantovani G, Polentarutti N, Ambrosi B, Loli P, Peverelli E, Lania AG, Beck-Peccoz P, Spada A: Evaluation of proopiomelanocortin mRNA in the peripheral blood from patients with Cushing's syndrome of different origin. J Endocrinol Invest; 2007 Nov;30(10):828-32
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Evaluation of proopiomelanocortin mRNA in the peripheral blood from patients with Cushing's syndrome of different origin.
  • ACTH-dependent Cushing's syndrome is due to ACTH overproduction originating from a pituitary corticotroph adenoma (Cushing's disease) or from ectopic tumors (ectopic ACTH syndrome).
  • Due to difficulties in the differential diagnosis between these two forms of hypercortisolism it would be important to have molecular tools able to discriminate the two conditions.
  • In order to analyse the presence of different POMC transcripts, we extracted total RNA from peripheral lymphocytes of 10 patients with Cushing's disease, 10 with ectopic Cushing syndrome, and 20 controls as well as from pituitary tissues (2 ACTH-omas and a normal pituitary polyA+ sample).
  • Northern blot analysis correctly revealed a 1072 nt mRNA molecule in pituitary ACTH-oma and in the normal pituitary polyA+ RNA samples, whereas neither this molecule nor other alternative transcripts were detected in blood samples from patients and controls.
  • This study further underlines the need for alternative approaches in the diagnosis of ACTH-dependent Cushing's syndrome.
  • [MeSH-major] ACTH Syndrome, Ectopic / diagnosis. ACTH-Secreting Pituitary Adenoma / diagnosis. Adenoma / diagnosis. Biomarkers, Tumor / genetics. Cushing Syndrome / diagnosis. Pro-Opiomelanocortin / genetics
  • [MeSH-minor] Blotting, Northern. Diagnosis, Differential. Humans. RNA, Messenger / blood. Reverse Transcriptase Polymerase Chain Reaction

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  • (PMID = 18075284.001).
  • [ISSN] 1720-8386
  • [Journal-full-title] Journal of endocrinological investigation
  • [ISO-abbreviation] J. Endocrinol. Invest.
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] Italy
  • [Chemical-registry-number] 0 / Biomarkers, Tumor; 0 / RNA, Messenger; 66796-54-1 / Pro-Opiomelanocortin
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25. Pecori Giraldi F, Pesce S, Maroni P, Pagliardini L, Lasio G, Losa M, Cavagnini F: Inhibitory effect of prepro-thyrotrophin-releasing hormone (178-199) on adrenocorticotrophic hormone secretion by human corticotroph tumours. J Neuroendocrinol; 2010 Apr;22(4):294-300
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  • [Title] Inhibitory effect of prepro-thyrotrophin-releasing hormone (178-199) on adrenocorticotrophic hormone secretion by human corticotroph tumours.
  • Prepro-thyrotrophin-releasing hormone (TRH) (178-199), a 22-amino acid cleavage product of the TRH prohormone, has been postulated to act as an adrenocorticotrophin hormone (ACTH)-release inhibitor.
  • Indeed, although in vitro evidence indicates that this peptide may inhibit basal and stimulated ACTH secretion in rodent anterior pituitary primary cultures and cell lines, not all studies concur and no study has as yet evaluated the effect of this peptide in Cushing's disease.
  • Twenty-four human ACTH-secreting pituitary tumours (13 macroadenomas, 11 microadenomas) were collected during surgery and incubated with 10 or 100 nm preproTRH(178-199).
  • ACTH secretion was assessed after 4 and 24 h of incubation by immunometric assay and expressed relative to levels observed in control, unchallenged wells (= 100%).
  • Parallel experiments were performed in rat anterior pituitary primary cultures.
  • A clear inhibition of ACTH secretion at 4 and 24 h was observed in 12 specimens (for 10 nm ppTRH: 70 +/- 4% control at 4 h and 83 +/- 5% control at 24 h; for 100 nm ppTRH: 70 +/- 4% control at 4 h and 85 +/- 5% control at 24 h), whereas a mild and short-lasting stimulatory effect was observed in three tumours and no changes in ACTH secretion in the remaining nine tumoural specimens.
  • Significant inhibition of ACTH secretion by preproTRH(178-199) in rat pituitary cultures was observed after 24 h of incubation.
  • The present study conducted in a large series of human corticotroph tumours shows that preproTRH(178-199) inhibits tumoural ACTH secretion in a sizable proportion of specimens, in close relation to the size of the tumour and its sensitivity to glucocorticoid negative feedback.
  • This appears a promising avenue of research and further studies are warranted to explore the full scope of preproTRH(178-199) as a regulator of ACTH secretion.
  • [MeSH-major] ACTH-Secreting Pituitary Adenoma / secretion. Adenoma / secretion. Adrenocorticotropic Hormone / secretion. Peptide Fragments / pharmacology. Protein Precursors / pharmacology. Thyrotropin-Releasing Hormone / pharmacology
  • [MeSH-minor] Animals. Cell Culture Techniques. Cells, Cultured. Corticotropin-Releasing Hormone / pharmacology. Dexamethasone / pharmacology. Dose-Response Relationship, Drug. Down-Regulation / drug effects. Drug Evaluation, Preclinical. Female. Hormone Antagonists / pharmacology. Humans. Male. Pituitary Gland, Anterior / drug effects. Pituitary Gland, Anterior / metabolism. Rats

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  • (PMID = 20136686.001).
  • [ISSN] 1365-2826
  • [Journal-full-title] Journal of neuroendocrinology
  • [ISO-abbreviation] J. Neuroendocrinol.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] England
  • [Chemical-registry-number] 0 / Hormone Antagonists; 0 / Peptide Fragments; 0 / Protein Precursors; 122018-92-2 / prepro-thyrotropin-releasing hormone (178-199); 5Y5F15120W / Thyrotropin-Releasing Hormone; 7S5I7G3JQL / Dexamethasone; 9002-60-2 / Adrenocorticotropic Hormone; 9015-71-8 / Corticotropin-Releasing Hormone
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26. Yawar A, Zuberi LM, Haque N: Cushing's disease and pregnancy: case report and literature review. Endocr Pract; 2007 May-Jun;13(3):296-9
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  • [Title] Cushing's disease and pregnancy: case report and literature review.
  • OBJECTIVE: To describe a patient with untreated Cushing's disease who had 2 spontaneous pregnancies that resulted in healthy babies on both occasions.
  • METHODS: We present a case report with clinical, laboratory, and imaging data and discuss the literature pertaining to pregnancy in patients with Cushing's syndrome.
  • RESULTS: A 28-year-old woman came to our endocrinology clinic with a 1-year history of symptoms and signs of Cushing's syndrome.
  • An elevated 24-hour urinary cortisol excretion and an unsuppressed 1-mg overnight dexamethasone test confirmed the diagnosis.
  • Further work-up subsequently showed 2 elevated 24-hour urinary cortisol values, loss of diurnal variation, and an elevated corticotropin level.
  • Magnetic resonance imaging of the pituitary showed normal findings.
  • Investigations showed increased 24-hour urinary cortisol excretion and serum corticotropin levels.
  • Repeated magnetic resonance imaging disclosed a microadenoma on the right side of the pituitary.
  • Unstimulated inferior petrosal sinus sampling showed a gradient to the right; thus, the presence of pituitary-dependent Cushing's disease was confirmed.
  • CONCLUSION: Our case demonstrates that patients with pituitary-dependent Cushing's disease are more likely to have spontaneous pregnancies with favorable outcomes than are patients with Cushing's syndrome due to other causes.
  • Our patient, despite having Cushing's disease for more than 7 years, had 2 uneventful pregnancies that produced normal healthy children, without exacerbation of her disease during pregnancy.
  • [MeSH-major] ACTH-Secreting Pituitary Adenoma / complications. Adenoma. Pituitary ACTH Hypersecretion / etiology. Pituitary Neoplasms / complications. Pregnancy Complications

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  • (PMID = 17599863.001).
  • [ISSN] 1934-2403
  • [Journal-full-title] Endocrine practice : official journal of the American College of Endocrinology and the American Association of Clinical Endocrinologists
  • [ISO-abbreviation] Endocr Pract
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article; Review
  • [Publication-country] United States
  • [Number-of-references] 18
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27. Pawlikowski M, Kunert-Radek J, Radek M: "Silent"corticotropinoma. Neuro Endocrinol Lett; 2008 Jun;29(3):347-50
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  • [Title] "Silent"corticotropinoma.
  • OBJECTIVES: The aim of the study was to evaluate the ACTH-immunopositive pituitary adenomas, especially those without manifestation of Cushing's disease MATERIAL AND METHODS: 148 pituitary adenomas removed surgically in years 1994--2007 were studied.
  • The paraffin sections were immunostained with antibodies against the pituitary hormones.
  • In 79 adenomas the immunostaining with anti-ACTH antibody was performed Additionally, 23 tumors were also immunostained with anti-Ki-67 (MIB-1) antibody.
  • RESULTS: ACTH immunopositivity was found in 34 cases (23%).
  • Fourteen ACTH-immunopositive tumors manifested themselves as Cushing's disease (including 1 case of Nelson's syndrome).
  • In the remaining 20 cases in spite of the positive immunostaining for ACTH of the tumor cells, no features of hypercortisolism were observed (in several cases even hypocortisolism was found).
  • Thus, those tumors represented so-called "silent" corticotropinomas.
  • Over one third (37%) of "clinically" nonfunctioning pituitary adenomas, when immunostained with anti-ACTH antibody, showed ACTH immunopositivity.
  • Three adenomas in patients with Cushing's disease (21.4%) and 7 "silent" corticotropinomas (35%) were recurrent tumors.
  • In contrast, the recurrence rate in the group of ACTH-immunonegative clinically nonfunctioning pituitary adenomas was 14.7%.
  • The "silent" corticotropinomas exhibited a tendency towards the higher expression of a proliferation marker, Ki-67 antigen as compared to the "active" corticotropinomas.
  • CONCLUSIONS: (i) "Silent" corticotropinomas are rather frequent. (ii) This adenoma type should be considered as aggressive. (iii) It is hypothetized that--like in Nelson's syndrome--the lack of hypercortisolism or even presence of hypocortisolism favorizes the exaggerated growth of tumoral corticotrophs.
  • [MeSH-major] ACTH-Secreting Pituitary Adenoma / metabolism. Adenoma / metabolism. Adrenocorticotropic Hormone / metabolism
  • [MeSH-minor] Adult. Cushing Syndrome / blood. Cushing Syndrome / pathology. Female. Humans. Immunohistochemistry. Ki-67 Antigen / blood. Male. Nelson Syndrome / blood. Paraffin Embedding. Pituitary Hormones / metabolism

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  • (PMID = 18580839.001).
  • [ISSN] 0172-780X
  • [Journal-full-title] Neuro endocrinology letters
  • [ISO-abbreviation] Neuro Endocrinol. Lett.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] Sweden
  • [Chemical-registry-number] 0 / Ki-67 Antigen; 0 / Pituitary Hormones; 9002-60-2 / Adrenocorticotropic Hormone
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28. Wasko R, Jaskula M, Kotwicka M, Andrusiewicz M, Jankowska A, Liebert W, Sowinski J: The expression of ghrelin in somatotroph and other types of pituitary adenomas. Neuro Endocrinol Lett; 2008 Dec;29(6):929-38
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  • [Title] The expression of ghrelin in somatotroph and other types of pituitary adenomas.
  • OBJECTIVES: It has been suggested that ghrelin synthesized locally in pituitary regulates the function and growth of pituitary cells in autocrine/paracrine way and might be an important factor of pituitary tumorogenesis.
  • The expression of ghrelin receptor in neoplastic cells of pituitary adenomas has also been demonstrated.
  • In vitro studies confirmed that ghrelin stimulates the proliferation of somatotroph cells in GH3 cell line.
  • The presence of both ghrelin mRNA and protein was detected in a number of benign and malignant neoplasms as well as in neoplastic cells of the tissues which do not express ghrelin in physiological conditions.
  • This study showed the presence of ghrelin mRNA and its protein in different types of pituitary adenomas.
  • DESIGN: The samples of 37 pituitary adenomas were obtained during standard neurosurgical tumor removal.
  • The study tissues included 20 somatotroph tumors (15 patients treated and 5 patients untreated with octreotide LAR before the surgery), 12 nonfunctioning adenomas, 4 prolactinomas and 1 ACTH-secreting tumor.
  • Expression of ghrelin mRNA was studied in 28 pituitary adenomas by RT-PCR.
  • RESULTS: The presence of ghrelin gene transcripts was demonstrated in 10 out of 15 examined somatotroph tumors (obtained from patients treated with octreotide LAR before the surgery) and also in 2 out of 4 samples of prolactinomas, 7 out of 8 of nonfunctioning tumors and in 2 samples of normal pituitary.
  • Immunohistochemical analyses revealed the presence of the protein in all 5 examined somatotroph tumors obtained from patients not treated prior to the surgery and in 10 out of 15 tumors obtained from patients treated with octreotide LAR.
  • The peptide was detected also in 10 out of 12 examined nonfunctioning tumors and in 2 examined PRL-secreting tumors.
  • The immunostaining for ghrelin was not shown in normal pituitaries.
  • CONCLUSIONS: The study demonstrated that ghrelin gene is expressed in somatotroph adenomas, both treated and untreated with octreotide LAR before the surgery, and also in other types of pituitary adenomas (prolactinomas and nonfunctioning adenomas).
  • [MeSH-major] Adenoma / metabolism. Ghrelin / metabolism. Pituitary Neoplasms / metabolism. Somatotrophs / metabolism

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  • (PMID = 19112387.001).
  • [ISSN] 0172-780X
  • [Journal-full-title] Neuro endocrinology letters
  • [ISO-abbreviation] Neuro Endocrinol. Lett.
  • [Language] eng
  • [Publication-type] Comparative Study; Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] Sweden
  • [Chemical-registry-number] 0 / Ghrelin; 0 / RNA, Messenger
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29. de Bruin C, Feelders RA, Waaijers AM, van Koetsveld PM, Sprij-Mooij DM, Lamberts SW, Hofland LJ: Differential regulation of human dopamine D2 and somatostatin receptor subtype expression by glucocorticoids in vitro. J Mol Endocrinol; 2009 Jan;42(1):47-56
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  • Dopamine agonists (DA) and somatostatin (SS) analogues have been proposed in the treatment of ACTH-producing neuro-endocrine tumours that cause Cushing's syndrome.
  • In this study, we investigated the effects of the GC dexamethasone (DEX) on D(2) and sst expression in three human neuro-endocrine cell lines: BON (carcinoid) and TT (medullary thyroid carcinoma) versus DMS (small cell lung cancer), which is severely GC resistant.
  • In DMS, DEX did not cause significant changes in the expression of these receptor subtypes.
  • In conclusion, we show that GCs selectively down-regulate sst(2), but not D(2) and only to a minor degree sst(5) in human neuro-endocrine BON and TT cells.
  • This mechanism may also be responsible for the low expression of sst(2) in corticotroph adenomas and underwrite the current interest in sst(5) and D(2) as possible therapeutic targets for a medical treatment of Cushing's disease.
  • [MeSH-minor] Animals. Antineoplastic Agents, Hormonal / metabolism. Cell Line. Cell Proliferation. DNA Fragmentation. Dexamethasone / metabolism. Dopamine / metabolism. Hormone Antagonists / metabolism. Humans. Mifepristone / metabolism. Octreotide / metabolism. RNA, Messenger / metabolism. Radioligand Assay. Somatostatin / metabolism

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  • (PMID = 18852217.001).
  • [ISSN] 1479-6813
  • [Journal-full-title] Journal of molecular endocrinology
  • [ISO-abbreviation] J. Mol. Endocrinol.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] England
  • [Chemical-registry-number] 0 / Antineoplastic Agents, Hormonal; 0 / Glucocorticoids; 0 / Hormone Antagonists; 0 / Protein Isoforms; 0 / RNA, Messenger; 0 / Receptors, Dopamine D2; 0 / Receptors, Somatostatin; 320T6RNW1F / Mifepristone; 51110-01-1 / Somatostatin; 7S5I7G3JQL / Dexamethasone; RWM8CCW8GP / Octreotide; VTD58H1Z2X / Dopamine
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30. Giacomini D, Haedo M, Gerez J, Druker J, Páez-Pereda M, Labeur M, Stalla GK, Arzt E: Differential gene expression in models of pituitary prolactin-producing tumoral cells. Horm Res; 2009 Apr;71 Suppl 2:88-94
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  • [Title] Differential gene expression in models of pituitary prolactin-producing tumoral cells.
  • Although several genes and signalling pathways have been identified as important effectors in the development of pituitary tumours, our understanding of pituitary tumorigenesis remains incomplete and is the focus of much current research.
  • Use of the mRNA differential display technique in prolactinomas from D2-receptor knockout mice and in stable GH3 cell line clones with enhanced tumorigenicity in vivo has led to the identification of two genes that are involved in the pathogenic process--BMP-4 and RSUME.
  • In contrast, BMP-4 has an inhibitory role in corticotrophinomas.
  • RSUME (RWD-containing sumoylation enhancer) was identified from a transformed lactosomatotrophic cell line that had increased tumorigenic and angiogenic potential.
  • The differential expression and action of BMP-4 in prolactinomas and corticotrophinomas highlights the importance of studying a gene with contrasting actions in two cell lineages of the same organ in order to understand the pituitary transformation process.
  • Both BMP-4 and RSUME may be interesting targets for inhibiting steps involved in pituitary tumorigenesis.
  • [MeSH-major] Bone Morphogenetic Protein 4 / biosynthesis. Gene Expression Regulation, Neoplastic. Models, Biological. Neoplasm Proteins / biosynthesis. Prolactinoma / metabolism. Transcription Factors / biosynthesis
  • [MeSH-minor] Animals. Cell Hypoxia / genetics. Cell Line, Tumor. Cell Transformation, Neoplastic / genetics. Cell Transformation, Neoplastic / metabolism. Gene Expression Profiling. Humans. Mice. Mice, Knockout. Receptors, Dopamine D2 / genetics. Receptors, Dopamine D2 / metabolism. Signal Transduction / genetics

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  • [Copyright] Copyright 2009 S. Karger AG, Basel.
  • (PMID = 19407504.001).
  • [ISSN] 1423-0046
  • [Journal-full-title] Hormone research
  • [ISO-abbreviation] Horm. Res.
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't; Review
  • [Publication-country] Switzerland
  • [Chemical-registry-number] 0 / BMP4 protein, human; 0 / Bone Morphogenetic Protein 4; 0 / Neoplasm Proteins; 0 / RSUME protein, human; 0 / Receptors, Dopamine D2; 0 / Transcription Factors
  • [Number-of-references] 56
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31. Winczyk K, Pawlikowski M: Immunohistochemical detection of PPARgamma receptors in the human pituitary adenomas: correlation with PCNA. Folia Histochem Cytobiol; 2005;43(3):137-41
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  • [Title] Immunohistochemical detection of PPARgamma receptors in the human pituitary adenomas: correlation with PCNA.
  • The occurrence of peroxisome proliferator-activated receptors gamma (PPARgamma) was investigated in 51 human pituitary adenomas and in 6 non-tumoral human pituitary tissue samples.
  • The mean percentage of cells with positive nuclear reaction was 3-fold higher in pituitary adenomas in comparison with non-tumoral pituitary tissues.
  • It was clearly stronger in pituitary adenomas than in non-tumoral pituitary tissues.
  • A slight, statistically insignificant tendency towards negative correlation between PPARgamma and PCNA was found in somatotropinomas, prolactinomas, corticotropinomas and gonadotropinomas.
  • On the other hand, in null cell adenomas and "silent" corticotropinomas, a strong positve correlation between the expression of PPARgamma and PCNA was observed.
  • The strong expression of PPARgamma in human pituitary adenomas and its possible involvement in control of cell proliferation in these tumors give a good reason for the attempts of their treatment with PPARgamma ligands.

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  • (PMID = 16201313.001).
  • [ISSN] 0239-8508
  • [Journal-full-title] Folia histochemica et cytobiologica
  • [ISO-abbreviation] Folia Histochem. Cytobiol.
  • [Language] ENG
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] Poland
  • [Chemical-registry-number] 0 / PPAR gamma; 0 / Proliferating Cell Nuclear Antigen
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32. Dam-Hieu P, Irthum B, Seizeur R, Roudaut N, Besson G: Management of ACTH-secreting supradiaphragmatic adenomas. Clin Neurol Neurosurg; 2007 Oct;109(8):698-704
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  • [Title] Management of ACTH-secreting supradiaphragmatic adenomas.
  • Supradiaphragmatic adrenocorticotropic hormone (ACTH) secreting pituitary adenomas are exceptionally encountered (14 cases previously described) and raise issues concerning their nosology and management.
  • To illustrate this issue, we presented two cases of supradiaphragmatic ACTH secreting pituitary adenomas successfully excised via a subfrontal approach.
  • Both patients were female (20 and 41 years) and had a typical Cushing's syndrome.
  • MRI revealed, in both cases, a suprasellar mass in contact with the pars tuberalis of the pituitary.
  • One year later, the patient was operated on again via a subfrontal approach, allowing excision of a supradiaphragmatic adenoma and a complete cure of Cushing's disease.
  • In both cases, the diaphragma sellae was found to be intact and the pituitary stalk could be preserved.
  • Postoperative MRI demonstrated a clearly visible intact pituitary stalk in conjunction with normal aspect of the pituitary.
  • Supradiaphragmatic pituitary adenomas are most likely adenomas of the pituitary stalk with extra-axial development.
  • [MeSH-major] ACTH-Secreting Pituitary Adenoma / pathology. ACTH-Secreting Pituitary Adenoma / surgery. Adenoma / pathology. Adenoma / surgery

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  • (PMID = 17532556.001).
  • [ISSN] 0303-8467
  • [Journal-full-title] Clinical neurology and neurosurgery
  • [ISO-abbreviation] Clin Neurol Neurosurg
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] Netherlands
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33. Vassiliadi D, Tsagarakis S: Unusual causes of Cushing's syndrome. Arq Bras Endocrinol Metabol; 2007 Nov;51(8):1245-52
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  • [Title] Unusual causes of Cushing's syndrome.
  • Although in the majority of the patients with Cushing's syndrome (CS), hypercortisolism is due to ACTH hypersecretion by a pituitary tumour or to ectopic ACTH secretion from an extrapituitary neoplastic lesion or to autonomous cortisol secretion by an adrenal tumour, in occasional patients a much rarer entity may be the cause of the syndrome.
  • The following unusual forms of CS were identified: (i) ACTH hyperesecretion due to ectopic corticotroph adenomas in the parasellar region or the neurohypophysis, or as part of double adenomas, or gangliocytomas;.
  • (ii) ACTH hypersecretion due to ectopic CRH or CRH-like peptide secretion by various neoplasms;.
  • (iii) ACTH-independent cortisol hypersecretion from ectopic or bilateral adrenal adenomas;.
  • Such unusual presentations of CS illustrate why Cushing's syndrome represents one of the most puzzling endocrine syndromes.
  • [MeSH-minor] ACTH Syndrome, Ectopic / complications. Adrenal Gland Neoplasms / complications. Female. Glucocorticoids / adverse effects. Humans. Liver Neoplasms / complications. Megestrol Acetate / adverse effects. Ovarian Neoplasms / complications. Pituitary Neoplasms / complications. Ritonavir / adverse effects

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  • (PMID = 18209862.001).
  • [ISSN] 0004-2730
  • [Journal-full-title] Arquivos brasileiros de endocrinologia e metabologia
  • [ISO-abbreviation] Arq Bras Endocrinol Metabol
  • [Language] eng
  • [Publication-type] Journal Article; Review
  • [Publication-country] Brazil
  • [Chemical-registry-number] 0 / Glucocorticoids; O3J8G9O825 / Ritonavir; TJ2M0FR8ES / Megestrol Acetate
  • [Number-of-references] 58
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34. Matsuno A: [Recent trends in the pathophysiology and treatment of pituitary adenomas]. Brain Nerve; 2009 Aug;61(8):957-62
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  • [Title] [Recent trends in the pathophysiology and treatment of pituitary adenomas].
  • Recent molecular pathological investigations have elucidated the cytodifferentiation of pituitary cells and identified several transcriptional factors that regulate this cytodifferentiation of pituitary cells.
  • The patterns of cytodifferentiation are closely related to the pathogenesis of pituitary adenomas.
  • Meanwhile, the role of hypothalamic hormones in the development of pituitary adenomas has recently attracted the attention of investigators.
  • The expression of growth hormone-releasing hormone and corticotrophin releasing hormone in corticotroph adenomas have been demonstrated in somatotroph adenomas and corticotropin adenomas, respectively.
  • This finding indicates that the endogenous expression of hypothalamic hormones and their receptors in human pituitary adenoma cells has ample significance in the autocrine or paracrine regulation of pituitary hormone production and tumor extension induced by hypothalamic hormones produced by adenoma cells.
  • The recent progress in surgical techniques for treatment of pituitary adenomas has provided several alternatives: transsphenoidal surgery vs. transcranial surgery, sublabial approach vs. endonasal approach, and microsurgery vs. endoscopic surgery.
  • There have also been developments in the medical treatment of pituitary adenomas.
  • The frequently used dopamine agonist, cabergoline, is very effective for treating prolactin-producing adenoma.
  • Long-acting octreotide and pegvisomant are now available for the treatment of growth hormone producing adenoma.
  • Cabergoline is also used for growth hormone producing adenoma.
  • Temozolomide has recently been used for atypical adenomas or pituitary carcinomas.
  • Adult growth hormone deficiency sometimes occurs in postoperative patients with pituitary adenomas.
  • [MeSH-major] Adenoma / etiology. Adenoma / therapy. Pituitary Neoplasms / etiology. Pituitary Neoplasms / therapy
  • [MeSH-minor] Antineoplastic Agents / therapeutic use. Corticotropin-Releasing Hormone. Dacarbazine / analogs & derivatives. Dacarbazine / therapeutic use. Ergolines / therapeutic use. Growth Hormone-Releasing Hormone. Human Growth Hormone / analogs & derivatives. Human Growth Hormone / therapeutic use. Humans. Hypothalamic Hormones. Incidental Findings. Neurosurgical Procedures / methods. Neurosurgical Procedures / trends. Octreotide / therapeutic use. Prolactinoma. Receptors, Neuropeptide. Receptors, Pituitary Hormone-Regulating Hormone

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  • (PMID = 19697885.001).
  • [ISSN] 1881-6096
  • [Journal-full-title] Brain and nerve = Shinkei kenkyū no shinpo
  • [ISO-abbreviation] Brain Nerve
  • [Language] jpn
  • [Publication-type] English Abstract; Journal Article; Review
  • [Publication-country] Japan
  • [Chemical-registry-number] 0 / Antineoplastic Agents; 0 / Ergolines; 0 / Hypothalamic Hormones; 0 / Receptors, Neuropeptide; 0 / Receptors, Pituitary Hormone-Regulating Hormone; 0 / pegvisomant; 0 / somatotropin releasing hormone receptor; 12629-01-5 / Human Growth Hormone; 7GR28W0FJI / Dacarbazine; 85622-93-1 / temozolomide; 9015-71-8 / Corticotropin-Releasing Hormone; 9034-39-3 / Growth Hormone-Releasing Hormone; LL60K9J05T / cabergoline; RWM8CCW8GP / Octreotide
  • [Number-of-references] 32
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35. Barahona MJ, Sojo L, Wägner AM, Bartumeus F, Oliver B, Cano P, Webb SM: Determinants of neurosurgical outcome in pituitary tumors. J Endocrinol Invest; 2005 Oct;28(9):787-94
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  • [Title] Determinants of neurosurgical outcome in pituitary tumors.
  • OBJECTIVE: Neurosurgery is one of the main therapies for pituitary tumors; optimising outcome is highly desirable for the patient and the health system.
  • We have analysed predictors of outcome in surgically treated pituitary adenomas operated in this centre.
  • DESIGN AND PATIENTS: A total of 289 patients underwent neurosurgery for a pituitary tumor, by the same two neurosurgeons, between 1982 and 2001.
  • Most tumors (70.2%) were macroadenomas; 28.4% were non-functioning, 27.3% secreted PRL, 26.3% GH of which 14 (4.8%) also secreted PRL, 17.3% ACTH, 0.3% FSH and 0.3% TSH.
  • RESULTS: A stepwise, forward logistic regression analysis revealed tumor size as the only significant predictor of radiological cure [odds ratio (OR) for macroadenoma 0.16 vs microadenoma, p=0.0005].
  • Hormonally, PRL-secretion by the tumor was a predictor of poor prognosis (OR 3.29 for cure of non-PRL-secreting tumors, p=0.005), as was tumor size (OR 0.45 for cure of macroadenomas, p=0.005).
  • Considering simultaneous radiological and hormonal remission, tumor size (OR 0.35 for macroadenoma, p=0.0002), and operation date (OR 0.40 for up to 1991, p=0.0002) were the only significant predictors.
  • CONCLUSIONS: PRL secretion, tumor size and operation date are the main predictors of neurosurgical outcome in pituitary tumors, the latter suggesting that neurosurgical experience plays an important role.
  • [MeSH-major] Adenoma / surgery. Neurosurgical Procedures / methods. Pituitary Neoplasms / surgery

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  • (PMID = 16370556.001).
  • [ISSN] 0391-4097
  • [Journal-full-title] Journal of endocrinological investigation
  • [ISO-abbreviation] J. Endocrinol. Invest.
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] Italy
  • [Chemical-registry-number] 12629-01-5 / Human Growth Hormone; 9002-60-2 / Adrenocorticotropic Hormone
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36. Kreutzer J, Jeske I, Hofmann B, Blumcke I, Fahlbusch R, Buchfelder M, Buslei R: No effect of the PPAR-gamma agonist rosiglitazone on ACTH or cortisol secretion in Nelson's syndrome and Cushing's disease in vitro and in vivo. Clin Neuropathol; 2009 Nov-Dec;28(6):430-9
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  • [Title] No effect of the PPAR-gamma agonist rosiglitazone on ACTH or cortisol secretion in Nelson's syndrome and Cushing's disease in vitro and in vivo.
  • OBJECTIVE: Surgical tumor resection remains the primary treatment strategy in ACTH-secreting pituitary adenomas, i.e.
  • Cushing's disease (CD) and Nelson's syndrome (NS).
  • However, an effective long-term pharmacological regime is not available in patients with persistent ACTH-hypersecretion.
  • The nuclear receptor peroxisome proliferator-activated receptor gamma (PPAR-gamma) is abundantly expressed in most pituitary adenomas.
  • First encouraging data reported that the PPAR-gamma ligand rosiglitazone antagonizes ACTH hypersecretion and exerts also antiproliferative effects in pituitary cell lines.
  • Herein, we studied the potential therapeutical effects of rosiglitazone in patients with ACTH-secreting pituitary adenomas in vitro and in vivo.
  • MATERIALS AND METHODS: Seven patients with persistent ACTH-hypersecretion (3 with NS, 4 with persistent CD) were treated 5 months with rosiglitazone (4 - 16 mg/day).
  • In vitro assays were performed in primary cell cultures obtained from eight additional patients with ACTH-secreting pituitary adenomas applying 80 microM rosiglitazone repeatedly over a time period of 14 days.
  • RESULTS: Our long-term clinical trial with the PPAR-gamma activator rosiglitazone showed no amelioration of clinical symptoms nor an inhibiting effect on ACTH-secretion in vivo.
  • In vitro, rosiglitazone treatment led to a statistically significant decrease of ACTH levels in 2 out of 8 primary cell cultures after 14 days compared to untreated controls.
  • CONCLUSION: In contrast to the initially promising laboratory data gathered in pituitary cell line experiments and nude mice models, our experimental data obtained in primary human ACTH-expressing pituitary adenoma cell cultures as well as our clinical experience with a long-term rosiglitazone trial in approved antidiabetic doses support the recently reported disappointing reports on acute or short-term medical treatment of ACTH-hypersecretion with PPAR-gamma activators.
  • [MeSH-major] Adrenocorticotropic Hormone / secretion. Hydrocortisone / secretion. Nelson Syndrome / blood. PPAR gamma / agonists. Pituitary ACTH Hypersecretion / blood. Thiazolidinediones / pharmacology
  • [MeSH-minor] Adenoma / pathology. Adenoma / secretion. Adult. Female. Humans. In Vitro Techniques. Magnetic Resonance Imaging. Male. Middle Aged. Pituitary Neoplasms / pathology. Pituitary Neoplasms / secretion. Treatment Outcome. Tumor Cells, Cultured

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  • (PMID = 19919817.001).
  • [ISSN] 0722-5091
  • [Journal-full-title] Clinical neuropathology
  • [ISO-abbreviation] Clin. Neuropathol.
  • [Language] eng
  • [Publication-type] Clinical Trial; Journal Article
  • [Publication-country] Germany
  • [Chemical-registry-number] 0 / PPAR gamma; 0 / Thiazolidinediones; 05V02F2KDG / rosiglitazone; 9002-60-2 / Adrenocorticotropic Hormone; WI4X0X7BPJ / Hydrocortisone
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37. Ikeda H, Abe T, Watanabe K: Usefulness of composite methionine-positron emission tomography/3.0-tesla magnetic resonance imaging to detect the localization and extent of early-stage Cushing adenoma. J Neurosurg; 2010 Apr;112(4):750-5
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  • [Title] Usefulness of composite methionine-positron emission tomography/3.0-tesla magnetic resonance imaging to detect the localization and extent of early-stage Cushing adenoma.
  • OBJECT: Fifty to eighty percent of Cushing disease is diagnosed by typical endocrine responses.
  • Recently, the number of diagnoses of Cushing disease without typical Cushing syndrome has been increasing; therefore, improving ways to determine the localization of the adenoma and making an early diagnosis is important.
  • METHODS: During the past 3 years the authors analyzed the diagnostic accuracy in a series of 35 patients with Cushing adenoma that was verified by surgical pituitary exploration.
  • All 35 cases of Cushing disease, including 20 cases of "overt" and 15 cases of "preclinical" Cushing disease, were studied.
  • Superconductive MR images (1.5 or 3.0 T) and composite images from FDG-PET or methionine (MET)-PET and 3.0-T MR imaging were compared with the localization of adenomas verified by surgery.
  • The causes of unsatisfactory results for superconductive MR imaging were false-negative results (10 cases), false-positive results (6 cases), and instances of double pituitary adenomas (3 cases).
  • Moreover, the adenoma location was better delineated on MET-PET/MR images than on FDG-PET/MR images.
  • There was no significant difference in maximum standard uptake value of adenomas evaluated by MET-PET between preclinical Cushing disease and overt Cushing disease.
  • CONCLUSIONS: Composite MET-PET/3.0-T MR imaging is useful for the improvement of the delineation of Cushing microadenoma and offers high-quality detectability for early-stage Cushing adenoma.
  • [MeSH-major] ACTH-Secreting Pituitary Adenoma. Adenoma. Magnetic Resonance Imaging / methods. Pituitary ACTH Hypersecretion. Positron-Emission Tomography / methods
  • [MeSH-minor] Adolescent. Adrenocorticotropic Hormone / blood. Adrenocorticotropic Hormone / secretion. Adult. Aged. Child. Early Diagnosis. False Negative Reactions. False Positive Reactions. Female. Fluorodeoxyglucose F18. Humans. Male. Methionine. Middle Aged. Preoperative Care. Reproducibility of Results. Young Adult


38. Haruna S, Otori N, Moriyama H, Kamio M: Endoscopic transnasal transethmosphenoidal approach for pituitary tumors: assessment of technique and postoperative findings of nasal and paranasal cavities. Auris Nasus Larynx; 2007 Mar;34(1):57-63
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  • [Title] Endoscopic transnasal transethmosphenoidal approach for pituitary tumors: assessment of technique and postoperative findings of nasal and paranasal cavities.
  • OBJECTIVE: Transnasal endoscopic surgery is the most common approach to removal of pituitary tumors.
  • METHODS: A total of 132 patients with pituitary tumors underwent surgery by one of the following three approaches:.
  • [MeSH-major] ACTH-Secreting Pituitary Adenoma / surgery. Cerebrospinal Fluid Rhinorrhea / etiology. Endoscopy / methods. Ethmoid Sinus / radiography. Ethmoid Sinus / surgery. Olfaction Disorders / etiology. Paranasal Sinuses / radiography. Pituitary Neoplasms / surgery. Postoperative Complications. Prolactinoma / surgery. Sphenoid Sinus / radiography. Sphenoid Sinus / surgery


39. Fomekong E, Maiter D, Grandin C, Raftopoulos C: Outcome of transsphenoidal surgery for Cushing's disease: a high remission rate in ACTH-secreting macroadenomas. Clin Neurol Neurosurg; 2009 Jun;111(5):442-9
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  • [Title] Outcome of transsphenoidal surgery for Cushing's disease: a high remission rate in ACTH-secreting macroadenomas.
  • OBJECTIVE: Although numerous studies have shown that transsphenoidal surgery is the best initial treatment for Cushing disease offering 59-95% of success, fewer information is available on the long-term outcome in the subgroup of patients harboring ACTH-secreting macroadenomas.
  • The aims of this study were to analyze our 10-year experience with transsphenoidal surgery in Cushing's disease and to examine whether remission rates were different between micro- and macroadenomas.
  • PATIENTS AND METHODS: Forty consecutive patients with proven Cushing's disease (28 microadenomas, 12 macroadenomas [diameter: 10-25 mm], 3 patients with no visible adenoma at MRI) underwent transsphenoidal surgery (TSS) assisted by neuronavigation in our center between 1996 and 2007.
  • The diagnosis was made using standard endocrinological criteria including bilateral inferior petrosal sinus sampling (BIPSS) with CRH stimulation in all patients with discordant or equivocal biochemical and radiological testing.
  • Interestingly, a very good remission rate (92%) was observed in the subset of macroadenomas, similar to that found in the group of microadenomas (84%, NS), while no post-surgical remission was observed in the 3 patients with no visible adenoma at MRI (p<0.01).
  • Of the 8 patients not in remission after repeated TSS surgery, 3 underwent radiation therapy and three had bilateral adrenalectomy, allowing remission of their hypercortisolism.
  • CONCLUSION: While our overall results are in accordance with other published series, we show here that ACTH-secreting pituitary macroadenomas are usually not associated with a bad outcome, in contrast with patients with no visible adenoma at preoperative MRI.
  • [MeSH-major] ACTH-Secreting Pituitary Adenoma / surgery. Cushing Syndrome / surgery. Neurosurgical Procedures. Sphenoid Bone / surgery
  • [MeSH-minor] Adolescent. Adult. Aged. Female. Follow-Up Studies. Humans. Hydrocortisone / blood. Magnetic Resonance Imaging. Male. Middle Aged. Pituitary Hormones / blood. Treatment Outcome. Young Adult

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  • (PMID = 19200645.001).
  • [ISSN] 1872-6968
  • [Journal-full-title] Clinical neurology and neurosurgery
  • [ISO-abbreviation] Clin Neurol Neurosurg
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] Netherlands
  • [Chemical-registry-number] 0 / Pituitary Hormones; WI4X0X7BPJ / Hydrocortisone
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40. Cho HY, Cho SW, Kim SW, Shin CS, Park KS, Kim SY: Silent corticotroph adenomas have unique recurrence characteristics compared with other nonfunctioning pituitary adenomas. Clin Endocrinol (Oxf); 2010 May;72(5):648-53
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  • [Title] Silent corticotroph adenomas have unique recurrence characteristics compared with other nonfunctioning pituitary adenomas.
  • OBJECTIVE: The prevalence of silent corticotroph adenomas (SCAs) is not rare among nonfunctioning pituitary adenomas (NFPAs); however, it is unknown whether the clinical significance of SCAs differs from that of NFPAs without ACTH immunoreactivity (non-SCAs).
  • MEASUREMENTS: We analysed whether clinical manifestations at diagnosis, postoperative recurrence rate and recurrence characteristics differed between SCA and non-SCA patients.
  • The mean age at the time of diagnosis was 44 years (range, 13-67 years) in the SCA group and 50 years (18-79 years) in the non-SCA group (P = 0.026), with respective follow-up periods of 5.2 (range, 1.0-16.0 years) and 4.2 years (0.5-16.1 years) (P = 0.255).
  • [MeSH-major] Adenoma / pathology. Adrenocorticotropic Hormone / analysis. Neoplasm Recurrence, Local. Pituitary Neoplasms / pathology

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  • (PMID = 19650787.001).
  • [ISSN] 1365-2265
  • [Journal-full-title] Clinical endocrinology
  • [ISO-abbreviation] Clin. Endocrinol. (Oxf)
  • [Language] eng
  • [Publication-type] Comparative Study; Journal Article
  • [Publication-country] England
  • [Chemical-registry-number] 9002-60-2 / Adrenocorticotropic Hormone
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41. Salgado LR, Machado MC, Cukiert A, Liberman B, Kanamura CT, Alves VA: Cushing's disease arising from a clinically nonfunctioning pituitary adenoma. Endocr Pathol; 2006;17(2):191-9
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  • [Title] Cushing's disease arising from a clinically nonfunctioning pituitary adenoma.
  • A 49-yr-old woman with a large pituitary tumor leading to visual loss and galactorrhea- amenorrhea was submitted to transcranial pituitary surgery, when a clinically nonfunctioning pituitary adenoma was partially removed.
  • Histopathology and immunohistochemistry confirmed the diagnosis of "non-secreting atypical adenoma."
  • Two years later, she presented high free urinary cortisol levels and a positive ACTH response to desmopressin testing on dexametasone 2 mg overnight.
  • A pituitary biopsy confirmed aggressive growth as well as positive immunoreactivity for ACTH, p53, Ki-67, and c-erb-B2.
  • The overall clinical, laboratory, and pathological data suggest a transition from a clinically nonfunctioning to a hypersecreting ACTH-producing tumor.
  • Putative mechanisms of tumor transformation and the possibility of a silent corticotropinoma evolving into clinical Cushing s syndrome are discussed.
  • [MeSH-major] Adenoma / complications. Adenoma / pathology. Pituitary ACTH Hypersecretion / etiology. Pituitary Neoplasms / complications. Pituitary Neoplasms / pathology

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  • (PMID = 17159252.001).
  • [ISSN] 1046-3976
  • [Journal-full-title] Endocrine pathology
  • [ISO-abbreviation] Endocr. Pathol.
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] United States
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42. Beshay VE, Beshay JE, Halvorson LM: Pituitary tumors: diagnosis, management, and implications for reproduction. Semin Reprod Med; 2007 Sep;25(5):388-401
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  • [Title] Pituitary tumors: diagnosis, management, and implications for reproduction.
  • Pituitary tumors are the most common intracranial neoplasms.
  • The availability of neuroimaging techniques has allowed for more rapid diagnosis, affording earlier treatment.
  • This review is intended to describe the common pituitary tumors seen by the gynecologist, and their impact on reproduction and fertility in the female patient.
  • [MeSH-major] ACTH-Secreting Pituitary Adenoma. Carcinoma. Growth Hormone-Secreting Pituitary Adenoma. Pituitary Neoplasms. Prolactinoma. Reproduction

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  • (PMID = 17710735.001).
  • [ISSN] 1526-8004
  • [Journal-full-title] Seminars in reproductive medicine
  • [ISO-abbreviation] Semin. Reprod. Med.
  • [Language] eng
  • [Publication-type] Journal Article; Review
  • [Publication-country] United States
  • [Chemical-registry-number] 9002-67-9 / Luteinizing Hormone; 9002-68-0 / Follicle Stimulating Hormone; 9002-71-5 / Thyrotropin
  • [Number-of-references] 120
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43. van Rijn SJ, Grinwis GC, Penning LC, Meij BP: Expression of Ki-67, PCNA, and p27kip1 in canine pituitary corticotroph adenomas. Domest Anim Endocrinol; 2010 May;38(4):244-52
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Expression of Ki-67, PCNA, and p27kip1 in canine pituitary corticotroph adenomas.
  • Pituitary-dependent hypercortisolism (PDH), which is caused by adrenocorticotropic hormone (ACTH)-secreting pituitary adenomas, is a common endocrinopathy in dogs.
  • The aim of this study was to investigate the expression of the proliferation markers Ki-67 and proliferating cell nuclear antigen (PCNA) and the cell-cycle inhibitor p27kip1 in corticotroph adenomas in enlarged and non-enlarged pituitaries.
  • The expression of Ki-67, PCNA, and p27kip1 was analyzed by immunohistochemical staining of 17 pituitary adenoma samples harvested during pituitary surgery in dogs with PDH.
  • However, a trend toward significance was observed when comparing the expression of p27kip1 in enlarged pituitaries versus normal pituitary tissue.
  • It is concluded that Ki-67 and PCNA are not useful as proliferative markers for studying the pathobiology of pituitary corticotroph adenomas in dogs.
  • [MeSH-major] ACTH-Secreting Pituitary Adenoma / veterinary. Cyclin-Dependent Kinase Inhibitor p27 / analysis. Dog Diseases / metabolism. Ki-67 Antigen / analysis. Pituitary Neoplasms / veterinary. Proliferating Cell Nuclear Antigen / analysis

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  • [Copyright] Copyright (c) 2009 Elsevier Inc. All rights reserved.
  • (PMID = 20022446.001).
  • [ISSN] 1879-0054
  • [Journal-full-title] Domestic animal endocrinology
  • [ISO-abbreviation] Domest. Anim. Endocrinol.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Ki-67 Antigen; 0 / Proliferating Cell Nuclear Antigen; 147604-94-2 / Cyclin-Dependent Kinase Inhibitor p27; 581-05-5 / alpha-MSH; 9002-60-2 / Adrenocorticotropic Hormone
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44. Santos J, Paiva I, Gomes L, Batista C, Geraldes E, Rito M, Velez A, Oliveira F, Carvalheiro M: [Recurrent hypercortisolism after removal of an ACTH secretor pituitary adenoma associated with an adrenal macronodule]. Acta Med Port; 2010 Jan-Feb;23(1):107-12
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] [Recurrent hypercortisolism after removal of an ACTH secretor pituitary adenoma associated with an adrenal macronodule].
  • [Transliterated title] Hipercortisolismo recorrente após remoção de adenoma hipofisário secretor de ACTH associado a macronódulo da glândula supra-renal.
  • Laboratorial study: High urinary free cortisol (UFC); serum cortisol - 25 microg/dl (8 am) (5-25) and 20 microg/dL (11pm); ACTH - 20 pg/mL (9-52) (8 am) and 14 pg/mL (11 pm); serum cortisol after dexamethasone suppression test: 14,9 mg/dL; CRH test: elevation of ACTH; Pituitary MRI: microadenoma; abdominal CT: nodule on the left adrenal.
  • During inferior petrosal sinus sampling with CRH stimulation, ACTH reached 368 pg/mL on the right and 136 pg/mL on the left side.
  • A slight increase of UFC, undetectable ACTH and serum cortisol after dexamethasone suppression test equal to 16 microg/dL were found.
  • This is an unusual case, in which after surgical cure of Cushing disease, secretory autonomy of a coexisting adrenal nodule occurred.
  • [MeSH-major] ACTH-Secreting Pituitary Adenoma / complications. ACTH-Secreting Pituitary Adenoma / surgery. Adenoma / complications. Adenoma / surgery. Adrenal Gland Neoplasms / complications. Cushing Syndrome / etiology. Cushing Syndrome / surgery

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  • (PMID = 20353713.001).
  • [ISSN] 1646-0758
  • [Journal-full-title] Acta médica portuguesa
  • [ISO-abbreviation] Acta Med Port
  • [Language] por
  • [Publication-type] Case Reports; English Abstract; Journal Article
  • [Publication-country] Portugal
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45. Gordon BM: Pharmacological management of secreting pituitary tumors. J Neurosci Nurs; 2007 Feb;39(1):52-7
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Pharmacological management of secreting pituitary tumors.
  • Because pituitary adenomas can present in many ways, nurses need to be aware of the signs and symptoms of different hormone-secreting tumors and their related pharmacologic treatment.
  • Although long-term medical management of secreting tumors and their hormonal complications is usually carried out on an outpatient basis, diagnosis often occurs during inpatient care.
  • [MeSH-major] ACTH-Secreting Pituitary Adenoma / drug therapy. ACTH-Secreting Pituitary Adenoma / nursing. Adenoma / drug therapy. Adenoma / nursing. Pituitary Neoplasms / drug therapy. Pituitary Neoplasms / nursing
  • [MeSH-minor] Education, Nursing, Continuing. Growth Hormone-Secreting Pituitary Adenoma / drug therapy. Growth Hormone-Secreting Pituitary Adenoma / nursing. Humans

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  • (PMID = 17396539.001).
  • [ISSN] 0888-0395
  • [Journal-full-title] The Journal of neuroscience nursing : journal of the American Association of Neuroscience Nurses
  • [ISO-abbreviation] J Neurosci Nurs
  • [Language] eng
  • [Publication-type] Journal Article; Review
  • [Publication-country] United States
  • [Number-of-references] 12
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46. van der Hoek J, Lamberts SW, Hofland LJ: The somatostatin receptor subtype 5 in neuroendocrine tumours. Expert Opin Investig Drugs; 2010 Mar;19(3):385-99
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  • AREAS COVERED IN THIS REVIEW: The scope of this review is primarily focused upon recent insights in sst(5)-receptor physiology, novel sst(5)-targeted treatment options predominantly directed towards pituitary adenomas, and gastroenteropancreatic neuroendocrine tumours.
  • WHAT THE READER WILL GAIN: An understanding of the potential that novel sst(5)-targeted SRIF analogues might have in the medical treatment of Cushing's disease and acromegaly, as demonstrated by translational research, based on pathophysiological data combined with results from clinical trials.
  • Finally, absence of sst(5) in corticotroph adenomas could be related to tumour aggressiveness in Cushing's disease.
  • [MeSH-minor] Adenoma / drug therapy. Adenoma / physiopathology. Animals. Drug Design. Gastrointestinal Neoplasms / drug therapy. Gastrointestinal Neoplasms / physiopathology. Humans. Pancreatic Neoplasms / drug therapy. Pancreatic Neoplasms / physiopathology. Pituitary Neoplasms / drug therapy. Pituitary Neoplasms / physiopathology

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  • (PMID = 20151855.001).
  • [ISSN] 1744-7658
  • [Journal-full-title] Expert opinion on investigational drugs
  • [ISO-abbreviation] Expert Opin Investig Drugs
  • [Language] eng
  • [Publication-type] Journal Article; Review
  • [Publication-country] England
  • [Chemical-registry-number] 0 / Receptors, Somatostatin; 0 / somatostatin receptor 5
  • [Number-of-references] 101
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47. Chowdhury IN, Sinaii N, Oldfield EH, Patronas N, Nieman LK: A change in pituitary magnetic resonance imaging protocol detects ACTH-secreting tumours in patients with previously negative results. Clin Endocrinol (Oxf); 2010 Apr;72(4):502-6
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] A change in pituitary magnetic resonance imaging protocol detects ACTH-secreting tumours in patients with previously negative results.
  • OBJECTIVE: While detection of pituitary tumours with magnetic resonance imaging (MRI) may reduce diagnostic costs and improve surgical outcomes for patients with Cushing's disease, the optimal T1-weighted spin-echo (SE) MRI protocol remains unknown.
  • We hypothesized that specific MR scanning parameters influence detection of corticotropinomas.
  • DESIGN AND PATIENTS: Between December 1997 and November 2004, 21 of 84 consecutive patients with Cushing's disease had a falsely negative initial pituitary MRI study and a lesion identified subsequently at the National Institutes of Health Clinical Center.
  • This study retrospectively reviewed and compared technical parameters used for the two pituitary T1-weighted SE MRIs in 18 patients with available scans.
  • Immunohistochemistry of tumours resected at transsphenoidal surgery confirmed all to be corticotropinomas.
  • CONCLUSIONS: Not all 'T1-weighted SE' scans are equally accurate.
  • We recommend that endocrinologists consider pituitary MRI parameters when interpreting the results.
  • [MeSH-major] ACTH-Secreting Pituitary Adenoma / diagnosis. Magnetic Resonance Imaging / methods. Pituitary Neoplasms / diagnosis
  • [MeSH-minor] Adult. False Negative Reactions. Female. Humans. Male. Middle Aged. Pituitary ACTH Hypersecretion / pathology. Pituitary Gland / pathology. Retrospective Studies

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  • (PMID = 19500112.001).
  • [ISSN] 1365-2265
  • [Journal-full-title] Clinical endocrinology
  • [ISO-abbreviation] Clin. Endocrinol. (Oxf)
  • [Language] eng
  • [Grant] United States / Intramural NIH HHS / / Z01 HD008833-01
  • [Publication-type] Journal Article; Research Support, N.I.H., Extramural; Research Support, N.I.H., Intramural
  • [Publication-country] England
  • [Other-IDs] NLM/ NIHMS139974; NLM/ PMC2866063
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48. Pandey P, Ojha BK, Mahapatra AK: Pediatric pituitary adenoma: a series of 42 patients. J Clin Neurosci; 2005 Feb;12(2):124-7
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Pediatric pituitary adenoma: a series of 42 patients.
  • Pituitary adenomas are uncommon in childhood.
  • This report describes the presentation, endocrinological profile, management and outcome of 42 children with pituitary adenomas.
  • The majority of the tumors were functioning adenomas (40/42, 95.2%).
  • Amongst the functioning tumors, there were 20 patients (47.6%) with prolactinomas, 11 patients (26.2%) with Cushing's disease and nine patients (21.4%) with growth hormone (GH)-secreting adenomas.
  • The majority of tumors were macroadenomas, with only eight patients (all with Cushing's disease) having a microadenoma.
  • Transsphenoidal tumor decompression was performed in most cases (71.4%).
  • Of these, 89% of the children with GH-secreting tumors and 100% of the children with Cushing's disease achieved remission.
  • We conclude that the transsphenoidal approach is effective and safe in surgery for pituitary adenomas in children and is the procedure of choice if there is no contraindication.
  • [MeSH-major] Adenoma. Pituitary Neoplasms
  • [MeSH-minor] Adolescent. Child. Female. Humans. Male. Pituitary ACTH Hypersecretion / etiology

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  • (PMID = 15749410.001).
  • [ISSN] 0967-5868
  • [Journal-full-title] Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia
  • [ISO-abbreviation] J Clin Neurosci
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] Scotland
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49. Fernando MA, Heaney AP: Alpha1-adrenergic receptor antagonists: novel therapy for pituitary adenomas. Mol Endocrinol; 2005 Dec;19(12):3085-96
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Alpha1-adrenergic receptor antagonists: novel therapy for pituitary adenomas.
  • Pituitary tumors are common and cause considerable morbidity due to local invasion and altered hormone secretion.
  • Doxazosin (dox), a selective alpha(1)-adrenergic receptor antagonist, used to treat hypertension, also inhibits prostate cancer cell proliferation.
  • We examined the effects of dox on murine and human pituitary tumor cell proliferation in vitro and in vivo. dox treatment inhibited proliferation of murine pituitary tumor cells, induced G(0)-G(1) cell cycle arrest, and reduced phosphorylated retinoblastoma levels.
  • In addition, increased annexin-fluorescein isothiocyanate immunoreactivity and cleaved caspase-3 levels, in keeping with dox-mediated apoptosis, were observed in the human and murine pituitary tumor cells, and dox administration to mice, harboring corticotroph tumors, decreased tumor growth and reduced plasma ACTH levels. dox-mediated antiproliferative and proapoptotic actions were not confined to alpha-adrenergic receptor-expressing pituitary tumor cells and were unaffected by cotreatment with the alpha-adrenergic receptor blocker, phenoxybenzamine. dox treatment led to reduced phosphorylated inhibitory kappaB (IkappaB)-alpha expression, and nuclear factor-kappaB transcription and decreased basal and TNFalpha-induced proopiomelanocortin transcriptional activation.
  • These results demonstrate that the selective alpha(1)-adrenergic receptor antagonist dox inhibits pituitary tumor cell growth in vitro and in vivo by mechanisms that are in part independent of its alpha-adrenergic receptor-blocking actions and involve down-regulation of nuclear factor-kappaB signaling. dox is proposed as a possible novel medical therapy for pituitary tumors.
  • [MeSH-major] ACTH-Secreting Pituitary Adenoma / drug therapy. Adenoma / drug therapy. Adrenergic alpha-1 Receptor Antagonists. Adrenergic alpha-Antagonists / therapeutic use. Antineoplastic Agents / therapeutic use. Doxazosin / therapeutic use
  • [MeSH-minor] Adrenocorticotropic Hormone / blood. Animals. Apoptosis. Caspase 3. Caspases / metabolism. Cell Cycle / drug effects. Cell Proliferation / drug effects. Humans. I-kappa B Proteins / metabolism. Mice. Mice, Nude. NF-kappa B / metabolism. Neoplasm Transplantation. Pro-Opiomelanocortin / genetics. Receptors, Adrenergic, alpha-1 / genetics. Receptors, Adrenergic, alpha-1 / metabolism. Transcriptional Activation. Tumor Cells, Cultured. Tumor Necrosis Factor-alpha / metabolism

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  • (PMID = 16020484.001).
  • [ISSN] 0888-8809
  • [Journal-full-title] Molecular endocrinology (Baltimore, Md.)
  • [ISO-abbreviation] Mol. Endocrinol.
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Adrenergic alpha-1 Receptor Antagonists; 0 / Adrenergic alpha-Antagonists; 0 / Antineoplastic Agents; 0 / I-kappa B Proteins; 0 / NF-kappa B; 0 / Receptors, Adrenergic, alpha-1; 0 / Tumor Necrosis Factor-alpha; 139874-52-5 / NF-kappaB inhibitor alpha; 66796-54-1 / Pro-Opiomelanocortin; 9002-60-2 / Adrenocorticotropic Hormone; EC 3.4.22.- / CASP3 protein, human; EC 3.4.22.- / Casp3 protein, mouse; EC 3.4.22.- / Caspase 3; EC 3.4.22.- / Caspases; NW1291F1W8 / Doxazosin
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50. Chacko G, Chacko AG, Lombardero M, Mani S, Seshadri MS, Kovacs K, Scheithauer BW: Clinicopathologic correlates of giant pituitary adenomas. J Clin Neurosci; 2009 May;16(5):660-5
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  • [Title] Clinicopathologic correlates of giant pituitary adenomas.
  • Giant adenomas comprise a clinical/therapeutic subset of pituitary adenomas that pose a surgical challenge.
  • The study population consisted of 28 patients who had giant pituitary adenomas, which are defined as tumors with a diameter greater than 5cm.
  • Clinically, five tumors (18%) were endocrinologically functional and 23 (82%) were not.
  • During surgery, one tumor was radically excised, four were subtotally excised, 12 were partially excised, and 11 were biopsied.
  • All of the tumors showed typical histological features of pituitary adenoma.
  • Of the 23 clinically non-functional adenomas, 18 were gonadotrophic tumors, four were null cell adenomas and one was a silent corticotroph adenoma.
  • The present study found giant adenomas to be invasive but slow growing, histologically benign and often gonadotrophic in subtype.
  • [MeSH-major] Adenoma / pathology. Adenoma / therapy. Pituitary Neoplasms / pathology. Pituitary Neoplasms / therapy
  • [MeSH-minor] Adolescent. Adrenocorticotropic Hormone / metabolism. Adult. Antigens, CD34 / metabolism. Female. Follow-Up Studies. Humans. Ki-67 Antigen / metabolism. Magnetic Resonance Imaging / methods. Male. Middle Aged. Neoplasm Invasiveness. Retrospective Studies. Treatment Outcome. Young Adult

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  • (PMID = 19285407.001).
  • [ISSN] 0967-5868
  • [Journal-full-title] Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia
  • [ISO-abbreviation] J Clin Neurosci
  • [Language] eng
  • [Publication-type] Clinical Trial; Journal Article
  • [Publication-country] Scotland
  • [Chemical-registry-number] 0 / Antigens, CD34; 0 / Ki-67 Antigen; 9002-60-2 / Adrenocorticotropic Hormone
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51. De Martin M, Pecori Giraldi F, Cavagnini F: Cushing's disease. Pituitary; 2006;9(4):279-87
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  • [Title] Cushing's disease.
  • Cushing's disease, i.e., pituitary ACTH-secreting adenoma causing excess glucocorticoid secretion, is a rare disease with significant mortality and morbidity.
  • Timely diagnosis and appropriate treatment can alter the course of the disease and are therefore mandatory.
  • In patients with equivocal results, second line tests, such as the dexamethasone-suppressed CRH test and desmopressin stimulation, usually enable the diagnosis to be confirmed.
  • Measurement of plasma ACTH then allows the distinction between ACTH-dependent (e.g., pituitary or extrapituitary neuroendocrine tumors) and ACTH-independent causes (e.g., adrenal tumors).
  • The last step in the diagnostic algorithm is often the most fraught with problems as the distinction between Cushing's disease and ectopic ACTH secretion relies on judicious interpretation of several diagnostic procedures.
  • Positive responses to stimulation with CRH and inhibition by high doses of dexamethasone, if concurrent, enable a pituitary origin to be established whereas conflicting results call for inferior petrosal sinus sampling, the latter to be performed in experienced centres only.
  • Visualisation of the tumor at pituitary imaging is helpful but not required for the diagnosis, as microadenomas often remain undectected by MRI and/or CT scan and, on the other hand, visualisation of a non-secreting incidentaloma may be misleading.
  • Surgical removal of the pituitary tumor is the optimal treatment choice and should be attempted in every patient.
  • Finally, patients cured of Cushing's disease require long-term monitoring given the risk of relapse and clinical burden of associated ailments.
  • [MeSH-major] Pituitary ACTH Hypersecretion / diagnosis. Pituitary ACTH Hypersecretion / therapy
  • [MeSH-minor] ACTH Syndrome, Ectopic / diagnosis. Adrenalectomy. Adrenocorticotropic Hormone / blood. Biomarkers / blood. Biomarkers / urine. Cardiovascular Diseases / etiology. Cardiovascular Diseases / therapy. Combined Modality Therapy. Diagnosis, Differential. Diagnostic Imaging. Endocrine System Diseases / etiology. Endocrine System Diseases / therapy. Eye Diseases / etiology. Eye Diseases / therapy. Humans. Hydrocortisone / blood. Hydrocortisone / urine. Hypophysectomy. Mental Disorders / etiology. Mental Disorders / therapy. Osteoporosis / etiology. Osteoporosis / therapy. Radiotherapy, Adjuvant. Recurrence. Treatment Outcome

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  • (PMID = 17077950.001).
  • [ISSN] 1573-7403
  • [Journal-full-title] Pituitary
  • [ISO-abbreviation] Pituitary
  • [Language] eng
  • [Publication-type] Journal Article; Review
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Biomarkers; 9002-60-2 / Adrenocorticotropic Hormone; WI4X0X7BPJ / Hydrocortisone
  • [Number-of-references] 90
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52. Smith PW, Turza KC, Carter CO, Vance ML, Laws ER, Hanks JB: Bilateral adrenalectomy for refractory Cushing disease: a safe and definitive therapy. J Am Coll Surg; 2009 Jun;208(6):1059-64
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  • [Title] Bilateral adrenalectomy for refractory Cushing disease: a safe and definitive therapy.
  • BACKGROUND: Refractory Cushing disease (CD) is associated with considerable morbidity and mortality.
  • Elevated serum ACTH (> 200 ng/mL) was present during followup in 33% (13 of 40).
  • There are persistent fatigue and QOL deficits that are not ameliorated by laparoscopic compared with open resection.
  • [MeSH-major] Adrenalectomy / methods. Pituitary ACTH Hypersecretion / surgery
  • [MeSH-minor] ACTH-Secreting Pituitary Adenoma / surgery. Adenoma / surgery. Adult. Aged. Female. Humans. Male. Middle Aged. Retrospective Studies. Treatment Outcome. Young Adult

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  • (PMID = 19476892.001).
  • [ISSN] 1879-1190
  • [Journal-full-title] Journal of the American College of Surgeons
  • [ISO-abbreviation] J. Am. Coll. Surg.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] United States
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53. Bademci G: Pitfalls in the management of Cushing's disease. J Clin Neurosci; 2007 May;14(5):401-8; discussion 409
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  • [Title] Pitfalls in the management of Cushing's disease.
  • Cushing's disease is caused by functional corticotroph adenomas of the pituitary gland, most commonly noninvasive microadenomas.
  • Transsphenoidal microsurgery is an effective means of control for patients with adrenocorticotrophic hormone-producing microadenomas.
  • The major causes of surgical failure in the treatment of Cushing's disease lies in inadequate preoperative evaluation, unsuccessful identification of the adenoma and inexperience of the surgeon.
  • For optimal results in this rare disease, endocrinological, radiological and surgical procedures should be co-ordinated in a specialized center.
  • [MeSH-major] Pituitary ACTH Hypersecretion / therapy. Treatment Failure

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  • (PMID = 17386367.001).
  • [ISSN] 0967-5868
  • [Journal-full-title] Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia
  • [ISO-abbreviation] J Clin Neurosci
  • [Language] eng
  • [Publication-type] Journal Article; Review
  • [Publication-country] Scotland
  • [Number-of-references] 82
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54. Pinchot SN, Sippel R, Chen H: ACTH-producing carcinoma of the pituitary with refractory Cushing's Disease and hepatic metastases: a case report and review of the literature. World J Surg Oncol; 2009;7:39
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  • [Title] ACTH-producing carcinoma of the pituitary with refractory Cushing's Disease and hepatic metastases: a case report and review of the literature.
  • BACKGROUND: Pituitary carcinomas are rare neuroendocrine tumors affecting the adenohypophysis.
  • CASE PRESENTATION: Here, we report the case of a fatal pituitary carcinoma evolving within two years from an adrenocorticotrophic hormone (ACTH)-secreting macroadenoma and review the global literature regarding this rare neuroendocrine tumor.
  • CONCLUSION: Pituitary carcinomas are extremely rare neoplasms, representing only 0.1% to 0.2% of all pituitary tumors.
  • The latency period between initial presentation of a pituitary adenoma and the development of distal metastases marking carcinoma is extremely variable, and some patients may live well over 10 years with pituitary carcinoma.
  • [MeSH-major] ACTH-Secreting Pituitary Adenoma / pathology. Liver Neoplasms / secondary. Pituitary ACTH Hypersecretion / complications

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  • (PMID = 19356251.001).
  • [ISSN] 1477-7819
  • [Journal-full-title] World journal of surgical oncology
  • [ISO-abbreviation] World J Surg Oncol
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] England
  • [Chemical-registry-number] 0 / Parathyroid Hormone
  • [Other-IDs] NLM/ PMC2678126
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55. Bronstein MD, Melmed S: [Pituitary tumorigenesis]. Arq Bras Endocrinol Metabol; 2005 Oct;49(5):615-25
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  • [Title] [Pituitary tumorigenesis].
  • Pituitary adenomas, almost invariably adenomas, account for 10% to 15% of all intracranial neoplasms and are incidentally detected in up to 27% of non selected autopsies.
  • Functionally, they are classified as secreting adenomas (PRL, GH, ACTH, TSH, LH, and FSH, and those co-secreting two or more hormones), and clinically non secreting or "non functioning" tumors.
  • Diagnosis is based on the hypersecretion phenotype (acromegaly, Cushing, etc), and on mass effect of macroadenomas leading to neurological disturbances, mainly visual complaints and headache.
  • Pituitary tumorigenesis mechanisms include those of primary hypothalamic versus pituitary origin, the latter is supported by evidence of pituitary adenoma monoclonality, as well as the absence of hyperplastic tissue surrounding the surgically removed tumor, and the relative independence of tumor hypothalamic control.
  • Nevertheless, a permissive role of the hypothalamus on tumor progression is also postulated.
  • Several molecular mechanisms involved in pituitary tumorigenesis have been unraveled including oncogenes, tumor suppressor genes and growth factors involved in neoplastic development, and will be described in this review.
  • [MeSH-major] Adenoma. Pituitary Neoplasms

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  • (PMID = 16444345.001).
  • [ISSN] 0004-2730
  • [Journal-full-title] Arquivos brasileiros de endocrinologia e metabologia
  • [ISO-abbreviation] Arq Bras Endocrinol Metabol
  • [Language] por
  • [Publication-type] English Abstract; Journal Article; Review
  • [Publication-country] Brazil
  • [Number-of-references] 68
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56. Segal-Lieberman G, Rubinfeld H, Glick M, Kronfeld-Schor N, Shimon I: Melanin-concentrating hormone stimulates human growth hormone secretion: a novel effect of MCH on the hypothalamic-pituitary axis. Am J Physiol Endocrinol Metab; 2006 May;290(5):E982-8
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  • [Title] Melanin-concentrating hormone stimulates human growth hormone secretion: a novel effect of MCH on the hypothalamic-pituitary axis.
  • It is cleaved from its precursor prepro-MCH (ppMCH) along with several other neuropeptides whose roles are not fully defined.
  • Because pituitary hormones such as growth hormone (GH), ACTH, and thyroid-stimulating hormone affect body weight and composition, appetite, insulin sensitivity, and lipoprotein metabolism, we investigated whether MCH exerts direct effects on the human pituitary to regulate energy balance using dispersed human fetal pituitaries (21-22 wk gestation) and cultured GH-secreting adenomas.
  • We found that MCH receptor-1 (MCH-R1), but not MCH receptor-2, is expressed in both normal (fetal and adult) human pituitary tissues and in GH cell adenomas.
  • MCH (10 nM) stimulated GH release from human fetal pituitary cultures by up to 62% during a 4-h incubation (P < 0.05).
  • A milder, albeit significant, induction of GH secretion by MCH (20%) was seen in cultured GH-secreting pituitary adenomas.
  • A comparable stimulation of GH secretion was seen when cultured mouse pituitary cells were treated with MCH.
  • Treatment of cultured GH adenoma cells with MCH (100 nM) induced extracellular signal-regulated kinases 1 and 2 phosphorylation, suggesting activation of MCH-R1.
  • In aggregate, these data suggest that MCH may regulate pituitary GH secretion and imply a potential cross-talk mechanism between appetite-regulating neuropeptides and pituitary hormones.
  • [MeSH-major] Human Growth Hormone / secretion. Hypothalamic Hormones / pharmacology. Hypothalamo-Hypophyseal System / drug effects. Melanins / pharmacology. Pituitary Hormones / pharmacology
  • [MeSH-minor] Animals. Cells, Cultured. Fetus. Gene Expression / genetics. Growth Hormone-Releasing Hormone / pharmacology. Humans. Mice. Mitogen-Activated Protein Kinase 1 / metabolism. Mitogen-Activated Protein Kinase 3 / metabolism. Oligopeptides / pharmacology. Phosphorylation / drug effects. Pituitary Gland / cytology. Pituitary Gland / metabolism. Pituitary Neoplasms / metabolism. Pituitary Neoplasms / pathology. Receptors, Somatostatin / genetics. Tumor Cells, Cultured

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  • (PMID = 16603725.001).
  • [ISSN] 0193-1849
  • [Journal-full-title] American journal of physiology. Endocrinology and metabolism
  • [ISO-abbreviation] Am. J. Physiol. Endocrinol. Metab.
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Hypothalamic Hormones; 0 / MCHR1 protein, human; 0 / Melanins; 0 / Oligopeptides; 0 / Pituitary Hormones; 0 / Receptors, Somatostatin; 0 / neuropeptide EI; 12629-01-5 / Human Growth Hormone; 67382-96-1 / melanin-concentrating hormone; 9034-39-3 / Growth Hormone-Releasing Hormone; EC 2.7.11.24 / Mitogen-Activated Protein Kinase 1; EC 2.7.11.24 / Mitogen-Activated Protein Kinase 3
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57. Mounier C, Pasquet F, Trouillas J, Perrin G, Jouanneau E, Borson-Chazot F, Colle B: [Nelson's syndrome: course of aggressive pituitary corticotroph adenoma]. Ann Endocrinol (Paris); 2007 Feb;68(1):28-33
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  • [Title] [Nelson's syndrome: course of aggressive pituitary corticotroph adenoma].
  • [Transliterated title] Syndrome de Nelson: évolution d'un adénome hypophysaire corticotrope agressif.
  • Nelson's syndrome was defined in 1958 as the association of an expanding pituitary tumor with high ACTH secretion after bilateral adrenalectomy for Cushing's disease.
  • Pituitary MRI and ACTH measurements led to the definition of Nelson's syndrome as the proliferation of a corticotrophic microadenoma or an aggressive and highly proliferative tumor residue induced by the decreased glucocorticoid inhibition after bilateral adrenalectomy.
  • Now, the problem is not the definition of Nelson's syndrome but rather the identification of markers predictive of tumor growth.
  • Based on a typical case and a review of the literature, we point out some predictive markers of tumor growth after bilateral adrenalectomy: young age at diagnosis, presence of tumor residue on pituitary MRI before adrenalectomy, markers of tumor aggressiveness (Ki-67>3%, mitoses, nuclear PTTG) and increase of ACTH levels during the first months following adrenalectomy.
  • [MeSH-major] Adenoma / physiopathology. Nelson Syndrome / physiopathology. Pituitary Neoplasms / physiopathology
  • [MeSH-minor] Adrenocorticotropic Hormone / analysis. Adrenocorticotropic Hormone / secretion. Adult. Female. Humans. Magnetic Resonance Imaging. Pituitary Gland / pathology

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  • (PMID = 17306208.001).
  • [ISSN] 0003-4266
  • [Journal-full-title] Annales d'endocrinologie
  • [ISO-abbreviation] Ann. Endocrinol. (Paris)
  • [Language] fre
  • [Publication-type] Case Reports; English Abstract; Journal Article
  • [Publication-country] France
  • [Chemical-registry-number] 9002-60-2 / Adrenocorticotropic Hormone
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58. de Bruin C, Meij BP, Kooistra HS, Hanson JM, Lamberts SW, Hofland LJ: Cushing's disease in dogs and humans. Horm Res; 2009 Jan;71 Suppl 1:140-3
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  • [Title] Cushing's disease in dogs and humans.
  • BACKGROUND: Cushing's disease (CD) is a common endocrinological disorder in dogs with an estimated incidence of 1 to 2 cases/1,000 dogs/year.
  • Canine CD may therefore serve as an animal model for human CD, especially since therapeutic canine hypophysectomy can generate substantial amounts of primary corticotroph adenoma tissue for in vitro research purposes.
  • In a recent study, we found that dopamine (DA) D(2) and somatostatin (SS) receptor subtypes are well expressed in canine corticotroph adenomas, but there are some distinct differences compared with the expression profile observed in human CD.
  • CASE REPORT: This case involves an 8-year-old female dog that developed signs of exercise intolerance, muscle weakness and polyuria/polydipsia due to an adrenocorticotropic hormone-secreting pituitary adenoma.
  • [MeSH-major] Dog Diseases / radiography. Pituitary ACTH Hypersecretion / radiography. Pituitary ACTH Hypersecretion / veterinary

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  • [Copyright] Copyright 2009 S. Karger AG, Basel.
  • (PMID = 19153526.001).
  • [ISSN] 1423-0046
  • [Journal-full-title] Hormone research
  • [ISO-abbreviation] Horm. Res.
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] Switzerland
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59. Raica M, Coculescu M, Cimpean AM, Ribatti D: Endocrine gland derived-VEGF is down-regulated in human pituitary adenoma. Anticancer Res; 2010 Oct;30(10):3981-6
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  • [Title] Endocrine gland derived-VEGF is down-regulated in human pituitary adenoma.
  • BACKGROUND: Endocrine gland-derived vascular endothelial growth factor (EG-VEGF) is an angiogenic molecule restricted to endocrine glands and, particularly, to steroid-secreting cells.
  • MATERIALS AND METHODS: In this study, we investigated by immunohistochemistry the expression of EG-VEGF in 2 samples of normal adenohypophysis and 43 bioptic samples of pituitary adenoma.
  • Moreover, the expression of growth hormone (GH), prolactin (PRL), follicle-stimulating hormone (FSH), luteinizing hormone (LH), thyroid-stimulating hormone (TSH) and adrenocorticoprophic hormone (ACTH) were also estimated.
  • RESULTS: The results of this study for the first time demonstrate a down-regulation of EG-VEGF expression in human pituitary adenoma as compared to normal adenohypophysis, suggesting an impaired function of the neoplastic cells in terms of hormone release in the blood stream, as a consequence of impaired tumor angiogenesis in the tumor.
  • CONCLUSION: On the basis of our data showing a marked decrease in the expression of EG-VEGF in pituitary adenoma, with the exception of LH-secreting adenomas, we suggest that LH might be involved in the induction of EG-VEGF secretion.
  • [MeSH-major] Adenoma / metabolism. Pituitary Neoplasms / metabolism. Vascular Endothelial Growth Factor, Endocrine-Gland-Derived / biosynthesis
  • [MeSH-minor] Adrenocorticotropic Hormone / biosynthesis. Down-Regulation. Follicle Stimulating Hormone / biosynthesis. Human Growth Hormone / biosynthesis. Humans. Immunohistochemistry. Luteinizing Hormone / biosynthesis. Pituitary Gland, Anterior / metabolism. Prolactin / biosynthesis. Thyrotropin / biosynthesis

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  • (PMID = 21036711.001).
  • [ISSN] 1791-7530
  • [Journal-full-title] Anticancer research
  • [ISO-abbreviation] Anticancer Res.
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] Greece
  • [Chemical-registry-number] 0 / Vascular Endothelial Growth Factor, Endocrine-Gland-Derived; 12629-01-5 / Human Growth Hormone; 9002-60-2 / Adrenocorticotropic Hormone; 9002-62-4 / Prolactin; 9002-67-9 / Luteinizing Hormone; 9002-68-0 / Follicle Stimulating Hormone; 9002-71-5 / Thyrotropin
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60. Barzaghi LR, Losa M, Giovanelli M, Mortini P: Complications of transsphenoidal surgery in patients with pituitary adenoma: experience at a single centre. Acta Neurochir (Wien); 2007;149(9):877-85; discussion 885-6
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  • [Title] Complications of transsphenoidal surgery in patients with pituitary adenoma: experience at a single centre.
  • OBJECTIVE: This paper reports the complications of transsphenoidal surgery for pituitary adenomas in a series of 1240 consecutive patients operated at our Institute between 1990 and 2004 (first operations) and indicate the clinical characteristics of patients which affected surgical morbidity and mortality.
  • METHODS: According to tumour type, there were 420 (33.9%) non-functioning pituitary adenomas (NFPA), 349 (28.1%) GH-secreting, 288 (23.2%) ACTH-secreting, 155 (12.5%) prolactin (PRL)-secreting, and 28 (2.3%) TSH-secreting adenomas.
  • There were 370 (29.8%) microadenomas and 870 (70.2%) macroadenomas of which 54 (4.4%) were giant adenomas.
  • Medical complications were significantly more frequent in patients older than 65 yr (4.9 vs. 1.4%; p = 0.009) and in patients with giant adenomas (5.6 vs. 1.6%; p = 0.03).
  • The surgical morbidity was increased in giant adenomas (15 vs. 3%; p = 0.0001), in NFPA (6.2 vs. 2.1% in secreting adenomas; p = 0.0002) and in patients older than 65 yr (6.6 vs. 3.1%; p = 0.05).
  • CONCLUSIONS: In our experience, the size of the adenoma was a risk factor for medical and surgery related complications and age over 65 yr for medical complications alone.
  • [MeSH-major] Adenoma / surgery. Neurosurgical Procedures / adverse effects. Neurosurgical Procedures / methods. Pituitary Neoplasms / surgery. Sphenoid Bone / surgery
  • [MeSH-minor] Adult. Age Factors. Aged. Cerebrospinal Fluid Rhinorrhea / etiology. Cranial Nerve Diseases / etiology. Epilepsy / etiology. Female. Hematoma / etiology. Humans. Intracranial Thrombosis / etiology. Male. Sella Turcica / blood supply. Vision Disorders / etiology

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  • (PMID = 17616842.001).
  • [ISSN] 0001-6268
  • [Journal-full-title] Acta neurochirurgica
  • [ISO-abbreviation] Acta Neurochir (Wien)
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] Austria
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61. Rudnik A, Zawadzki T, Gałuszka-Ignasiak B, Bazowski P, Duda I, Wojtacha M, Rudnik AI, Krawczyk I: Endoscopic transsphenoidal treatment in recurrent and residual pituitary adenomas--first experience. Minim Invasive Neurosurg; 2006 Feb;49(1):10-4
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  • [Title] Endoscopic transsphenoidal treatment in recurrent and residual pituitary adenomas--first experience.
  • AIM OF THE STUDY: The aim of the study has been the assessment of the endoscopic method in the surgical management of recurrent and residual pituitary adenomas, as concerns treatment efficiency, substantial complications, and its possible advantages for the operating surgeon and patient.
  • MATERIAL AND METHODS: In Department of Neurosurgery, Silesian University School of Medicine in Katowice, between October 2001 and June 2004, 125 patients underwent endoscopic surgery due to pituitary adenoma.
  • The analysis comprised 20 patients, who were operated on due to recurrent adenomas or residual tumour not completely removed during the first surgical procedure.
  • The analysed group had 14 non-functioning adenomas, 4 GH-secreting adenomas, 1 PRL-secreting adenoma and 1 ACTH-secreting adenoma.
  • 11 of the 20 adenomas infiltrated the cavernous sinuses.
  • In the group of 11 patients with adenomas not infiltrating the cavernous sinuses, recovery was reported for 8 of them, that is 73%.
  • CONCLUSIONS: The endoscopic method is a safe, hardly invasive and efficient surgical technique in the treatment of recurrent and residual pituitary adenomas.
  • [MeSH-major] Adenoma / surgery. Neoplasm Recurrence, Local / surgery. Neuroendoscopy. Pituitary Neoplasms / surgery. Sphenoid Sinus / surgery
  • [MeSH-minor] Adult. Aged. Female. Follow-Up Studies. Humans. Male. Middle Aged. Neoplasm, Residual. Reoperation. Treatment Outcome

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  • (PMID = 16547875.001).
  • [ISSN] 0946-7211
  • [Journal-full-title] Minimally invasive neurosurgery : MIN
  • [ISO-abbreviation] Minim Invasive Neurosurg
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] Germany
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62. Guignat L, Assie G, Bertagna X, Bertherat J: [Corticotroph adenoma]. Presse Med; 2009 Jan;38(1):125-32
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  • [Title] [Corticotroph adenoma].
  • [Transliterated title] Adénome corticotrope.
  • Corticotroph adenomas cause ACTH oversecretion responsible for Cushing's disease.
  • This represents the most frequent cause of Cushing's syndrome, or chronic excess of endogenous glucocorticoids.
  • Ninety percent of corticotroph adenomas are microadenomas, sometime not visible on MRI.
  • Corticotroph macroadenomas are rare, but can be responsible for an aggressive tumor.
  • Cushing's disease diagnosis requires careful hormonal and imaging investigations, aiming first at the diagnosis of Cushing's syndrome and in a second step at the diagnosis of its pituitary origin.
  • The treatment of corticotroph adenoma is mainly based on pituitary surgery.
  • In case of failure of pituitary surgery, or in patients in whom surgery is not appropriate as a first line treatment, medical therapy (mainly anticortisolic drugs), pituitary radiotherapy or surgical bilateral adrenalectomy can be discussed.
  • [MeSH-major] ACTH-Secreting Pituitary Adenoma / complications. Pituitary ACTH Hypersecretion / etiology. Pituitary Neoplasms / complications
  • [MeSH-minor] Adrenalectomy. Adrenocorticotropic Hormone / analysis. Chemotherapy, Adjuvant. Corticotropin-Releasing Hormone / analysis. Cushing Syndrome / diagnosis. Cushing Syndrome / etiology. Cushing Syndrome / therapy. Diagnosis, Differential. Humans. Hydrocortisone / analysis. Hydrocortisone / antagonists & inhibitors. Magnetic Resonance Imaging. Neoadjuvant Therapy. Radiotherapy, Adjuvant

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  • (PMID = 19041214.001).
  • [ISSN] 2213-0276
  • [Journal-full-title] Presse medicale (Paris, France : 1983)
  • [ISO-abbreviation] Presse Med
  • [Language] fre
  • [Publication-type] English Abstract; Journal Article
  • [Publication-country] France
  • [Chemical-registry-number] 9002-60-2 / Adrenocorticotropic Hormone; 9015-71-8 / Corticotropin-Releasing Hormone; WI4X0X7BPJ / Hydrocortisone
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63. Aghi MK: Management of recurrent and refractory Cushing disease. Nat Clin Pract Endocrinol Metab; 2008 Oct;4(10):560-8
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  • [Title] Management of recurrent and refractory Cushing disease.
  • Cushing disease is most frequently caused by pituitary adenomas that secrete adrenocorticotrophic hormone.
  • More challenging for neurosurgeons and endocrinologists, however, is management of the remaining patients whose Cushing disease is refractory to initial transsphenoidal surgery or recurs after initial remission.
  • Here, we review the treatment options and latest surgical, medical, and radiosurgical advances for patients who have persistent or recurrent Cushing disease after transsphenoidal surgery.
  • [MeSH-major] Pituitary ACTH Hypersecretion / therapy
  • [MeSH-minor] ACTH-Secreting Pituitary Adenoma / complications. ACTH-Secreting Pituitary Adenoma / surgery. Adrenalectomy. Humans. Hypophysectomy / methods. Ketoconazole / therapeutic use. Models, Biological. Neoplasm Recurrence, Local / surgery. Pituitary Neoplasms / complications. Pituitary Neoplasms / surgery. Radiosurgery / methods. Recurrence. Sphenoid Bone / surgery. Treatment Failure

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  • (PMID = 18711406.001).
  • [ISSN] 1745-8374
  • [Journal-full-title] Nature clinical practice. Endocrinology & metabolism
  • [ISO-abbreviation] Nat Clin Pract Endocrinol Metab
  • [Language] eng
  • [Publication-type] Evaluation Studies; Journal Article; Review
  • [Publication-country] England
  • [Chemical-registry-number] R9400W927I / Ketoconazole
  • [Number-of-references] 54
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64. Moore AF, Grinspoon SK: A dural tale. J Clin Endocrinol Metab; 2007 Sep;92(9):3367-8
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  • [MeSH-major] ACTH-Secreting Pituitary Adenoma / diagnosis. Adenoma / diagnosis. Dura Mater / pathology
  • [MeSH-minor] Adult. Cushing Syndrome / diagnosis. Cushing Syndrome / etiology. Diagnosis, Differential. Humans. Magnetic Resonance Imaging. Male

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  • (PMID = 17823272.001).
  • [ISSN] 0021-972X
  • [Journal-full-title] The Journal of clinical endocrinology and metabolism
  • [ISO-abbreviation] J. Clin. Endocrinol. Metab.
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] United States
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65. Ma Y, Xia XW, Su CB, Kong YG: [Distribution and expression of peroxisome proliferator activated receptor gamma in human pituitary adenomas]. Zhongguo Yi Xue Ke Xue Yuan Xue Bao; 2006 Jun;28(3):375-7
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  • [Title] [Distribution and expression of peroxisome proliferator activated receptor gamma in human pituitary adenomas].
  • OBJECTIVE: To evaluate the distribution and expression of peroxisome proliferator activated receptor gamma (PPAR-gamma) in human pituitary adenomas.
  • METHODS: Thirty eight consecutive surgically resected pituitary adenomas and 5 normal pituitary tissues were enrolled in the study.
  • RESULTS: PPAR-gamma immunoreactivity was located in the nucleoli of pituitary adenoma cells.
  • PPAR-gamma was expressed in all human pituitary adenomas and normal pituitary tissues.
  • Its expression in pituitary adenomas was significantly higher than in normal pituitary tissues (P < 0.01), and its expression in ACTH-secreting adenomas was significantly higher than in any other type of pituitary adenomas (P < 0.05).
  • CONCLUSIONS: PPAR-gamma may play an important role in the generation, growth, and invasion of human pituitary adenomas.
  • [MeSH-major] ACTH-Secreting Pituitary Adenoma / metabolism. PPAR gamma / biosynthesis. Pituitary Gland / metabolism. Pituitary Neoplasms / metabolism

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  • (PMID = 16900637.001).
  • [ISSN] 1000-503X
  • [Journal-full-title] Zhongguo yi xue ke xue yuan xue bao. Acta Academiae Medicinae Sinicae
  • [ISO-abbreviation] Zhongguo Yi Xue Ke Xue Yuan Xue Bao
  • [Language] chi
  • [Publication-type] English Abstract; Journal Article
  • [Publication-country] China
  • [Chemical-registry-number] 0 / PPAR gamma
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66. Yesil S, Demir T, Akinci B, Ozdogan O, Gazioglu N, Hatemi H: Recurrent Cushing's syndrome after adrenal autotransplantation. Exp Clin Endocrinol Diabetes; 2009 Oct;117(9):470-2
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  • [Title] Recurrent Cushing's syndrome after adrenal autotransplantation.
  • Adrenalectomy with adrenal autotransplantation used to be performed frequently for Cushing's disease in the past because of the limitations of conventional radiological techniques and the lack of adequate neurosurgical techniques.
  • Today, however, bilateral adrenalectomy may be still required for selective patients with Cushing's syndrome when partial hypophysectomy has failed to control hypercortisolism or the source for ectopic ACTH syndrome could not be determined.
  • Here, we report a case of recurrent Cushing's syndrome due to a pituitary adenoma, who was treated with bilateral adrenalectomy and autotransplantation for her Cushing's syndrome.
  • Having determined pituitary adenoma as the cause of recurrent Cushing's syndrome after endocrinological investigations and imaging, we were able to treat the patient with transsphenoidal adenomectomy.
  • We suggest that transsphenoidal resection of the adenoma rather than excision of the autotransplants and adrenal remnants should be the preferred treatment method for recurrent Cushing's disease.
  • [MeSH-major] ACTH-Secreting Pituitary Adenoma / surgery. Adenoma / surgery. Cushing Syndrome / surgery. Pituitary ACTH Hypersecretion / surgery

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  • (PMID = 19885999.001).
  • [ISSN] 1439-3646
  • [Journal-full-title] Experimental and clinical endocrinology & diabetes : official journal, German Society of Endocrinology [and] German Diabetes Association
  • [ISO-abbreviation] Exp. Clin. Endocrinol. Diabetes
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] Germany
  • [Chemical-registry-number] 9002-60-2 / Adrenocorticotropic Hormone; WI4X0X7BPJ / Hydrocortisone
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67. Kawashima ST, Usui T, Sano T, Iogawa H, Hagiwara H, Tamanaha T, Tagami T, Naruse M, Hojo M, Takahashi JA, Shimatsu A: P53 gene mutation in an atypical corticotroph adenoma with Cushing's disease. Clin Endocrinol (Oxf); 2009 Apr;70(4):656-7
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  • [Title] P53 gene mutation in an atypical corticotroph adenoma with Cushing's disease.
  • [MeSH-major] ACTH-Secreting Pituitary Adenoma / complications. ACTH-Secreting Pituitary Adenoma / genetics. Adenoma / genetics. Mutation / genetics. Pituitary ACTH Hypersecretion / etiology. Pituitary Neoplasms / genetics. Tumor Suppressor Protein p53 / genetics

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  • (PMID = 18771563.001).
  • [ISSN] 1365-2265
  • [Journal-full-title] Clinical endocrinology
  • [ISO-abbreviation] Clin. Endocrinol. (Oxf)
  • [Language] eng
  • [Publication-type] Case Reports; Letter
  • [Publication-country] England
  • [Chemical-registry-number] 0 / Tumor Suppressor Protein p53
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68. Xu H, Zhang M, Zhai G, Zhang M, Ning G, Li B: The role of integrated (18)F-FDG PET/CT in identification of ectopic ACTH secretion tumors. Endocrine; 2009 Dec;36(3):385-91
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  • [Title] The role of integrated (18)F-FDG PET/CT in identification of ectopic ACTH secretion tumors.
  • The role of (18)F-Flurodeoxyglucose positron emission tomography ((18)F-FDG PET) scan in localization of ectopic Cushing's syndrome (EAS) tumor is still controversial.
  • Here, we report on the use of integrated (18)F-FDG PET and computed tomography ((18)F-FDG PET/CT) in localization of EAS tumors in patients with ectopic Cushing's syndrome.
  • Five patients, three men and two women, were reported, whose endocrine investigations and negative pituitary imaging were suggestive of ectopic ACTH secretion. (18)F-FDG PET/CT was performed to identify the source of ACTH secretion.
  • Four of them underwent lesion resection, whose plasma ACTH and serum cortisol levels returned to normal after the surgery.
  • Unfortunately, one patient died due to severe infection and electrolyte disorders. (18)F-FDG PET/CT technology integrates PET and CT imaging in one device so as to increase the accuracy of tumor localization and further improve the prognosis of the patients by curative resection.
  • [MeSH-major] ACTH Syndrome, Ectopic / diagnostic imaging. ACTH-Secreting Pituitary Adenoma / diagnostic imaging. Adenoma / diagnostic imaging. Carcinoid Tumor / diagnostic imaging. Fluorodeoxyglucose F18. Positron-Emission Tomography / methods. Tomography, Emission-Computed / methods

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  • (PMID = 19806477.001).
  • [ISSN] 1559-0100
  • [Journal-full-title] Endocrine
  • [ISO-abbreviation] Endocrine
  • [Language] eng
  • [Publication-type] Case Reports; Evaluation Studies; Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
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69. Bogazzi F, Russo D, Locci MT, Chifenti B, Ultimieri F, Raggi F, Viacava P, Cecchetti D, Cosci C, Sardella C, Acerbi G, Gasperi M, Martino E: Peroxisome proliferator-activated receptor (PPAR)gamma is highly expressed in normal human pituitary gland. J Endocrinol Invest; 2005 Nov;28(10):899-904
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  • [Title] Peroxisome proliferator-activated receptor (PPAR)gamma is highly expressed in normal human pituitary gland.
  • OBJECTIVE: Expression of peroxisome proliferator-activated receptor (PPAR)gamma in normal pituitary seems to be restricted to ACTH-secreting cells.
  • The aim of the study was to evaluate the expression of PPARgamma in normal human pituitary tissue and to study its localization in the pituitary secreting cells.
  • MATERIALS AND METHODS: Normal pituitary tissue samples were obtained form 11 patients with non-secreting adenoma who underwent surgical excision of the tumor.
  • Expression of PPARgamma was evaluated by immunostaining and western blotting; localization of PPARgamma in each pituitary secreting cell lineage was evaluated by double immunofluorescence using confocal microscopy.
  • Pituitary non-functioning adenomas served as Controls.
  • RESULTS: PPARgamma was highly expressed in all pituitary samples with a (mean +/- SD) 81 +/- 6.5% of stained cells; expression of PPARgamma was confirmed by western blotting.
  • Non-functioning pituitary adenomas had 74 +/- 11% PPARgamma positive cells.
  • Double immunostaining revealed that every pituitary secreting cell (GH, TSH, LH, FSH, PRL and ACTH) had PPARgamma expressed.
  • DISCUSSION: The present study demonstrated that PPARgamma is highly expressed in every normal pituitary secreting cell lineage.
  • It can translocate into the nucleus by ligand binding; however, its role in pituitary hormone regulation remains to be elucidated.
  • [MeSH-major] PPAR gamma / analysis. Pituitary Gland / chemistry
  • [MeSH-minor] Adrenocorticotropic Hormone / metabolism. Adult. Aged. Animals. Blotting, Western. Cell Line, Tumor. Female. Follicle Stimulating Hormone / metabolism. Growth Hormone / metabolism. Humans. Immunohistochemistry. Luteinizing Hormone / metabolism. Male. Microscopy, Confocal. Middle Aged. Peptide Fragments / metabolism. Pituitary Hormones / metabolism. Pituitary Neoplasms / chemistry. Pituitary Neoplasms / metabolism. Pituitary Neoplasms / pathology. Prolactin / metabolism. Thyrotropin / metabolism

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  • (PMID = 16419492.001).
  • [ISSN] 0391-4097
  • [Journal-full-title] Journal of endocrinological investigation
  • [ISO-abbreviation] J. Endocrinol. Invest.
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] Italy
  • [Chemical-registry-number] 0 / PPAR gamma; 0 / Peptide Fragments; 0 / Pituitary Hormones; 0 / somatotropin (134-154); 9002-60-2 / Adrenocorticotropic Hormone; 9002-62-4 / Prolactin; 9002-67-9 / Luteinizing Hormone; 9002-68-0 / Follicle Stimulating Hormone; 9002-71-5 / Thyrotropin; 9002-72-6 / Growth Hormone
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70. Lodish MB, Sinaii N, Patronas N, Batista DL, Keil M, Samuel J, Moran J, Verma S, Popovic J, Stratakis CA: Blood pressure in pediatric patients with Cushing syndrome. J Clin Endocrinol Metab; 2009 Jun;94(6):2002-8
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  • CONTEXT: Hypertension (HTN) has been reported in up to 60% of children with Cushing syndrome (CS), but its course, side effects, and potential differences among various causes of CS have not been adequately studied.
  • DESIGN: Data from 86 children with corticotropinomas [Cushing disease (CD)] and 27 children with ACTH-independent CS (AICS) were analyzed.

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  • (PMID = 19293264.001).
  • [ISSN] 1945-7197
  • [Journal-full-title] The Journal of clinical endocrinology and metabolism
  • [ISO-abbreviation] J. Clin. Endocrinol. Metab.
  • [Language] ENG
  • [Grant] United States / NICHD NIH HHS / HD / Z01 HD000642; United States / Intramural NIH HHS / /
  • [Publication-type] Comparative Study; Evaluation Studies; Journal Article; Research Support, N.I.H., Intramural
  • [Publication-country] United States
  • [Chemical-registry-number] 9002-60-2 / Adrenocorticotropic Hormone
  • [Other-IDs] NLM/ PMC2690429
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71. Daly AF, Jaffrain-Rea ML, Ciccarelli A, Valdes-Socin H, Rohmer V, Tamburrano G, Borson-Chazot C, Estour B, Ciccarelli E, Brue T, Ferolla P, Emy P, Colao A, De Menis E, Lecomte P, Penfornis F, Delemer B, Bertherat J, Wémeau JL, De Herder W, Archambeaud F, Stevenaert A, Calender A, Murat A, Cavagnini F, Beckers A: Clinical characterization of familial isolated pituitary adenomas. J Clin Endocrinol Metab; 2006 Sep;91(9):3316-23
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  • [Title] Clinical characterization of familial isolated pituitary adenomas.
  • CONTEXT: Familial pituitary adenomas occur rarely in the absence of multiple endocrine neoplasia type 1 (MEN1) and Carney complex (CNC).
  • OBJECTIVE: Our objective was to characterize the clinical and genealogical features of non-MEN1/CNC familial isolated pituitary adenomas (FIPA).
  • RESULTS: Sixty-four FIPA families including 138 affected individuals were identified [55 prolactinomas, 47 somatotropinomas, 28 nonsecreting adenomas (NS), and eight ACTH-secreting tumors].
  • A single tumor phenotype occurred in 30 families (homogeneous), and heterogeneous phenotypes occurred in 34 families.
  • FIPA cases were younger at diagnosis than sporadic cases (P = 0.015); tumors were diagnosed earlier in the first vs. the second generation of multigenerational families.
  • Somatotropinomas occurred as isolated familial somatotropinoma cases and within heterogeneous FIPA families; isolated familial somatotropinoma cases represented 18% of FIPA cases and were younger at diagnosis than patients with sporadic somatotropinomas.
  • Familial NS cases were younger at diagnosis (P = 0.03) and had more frequently invasive tumors (P = 0.024) than sporadic cases.
  • CONCLUSIONS: Homogeneous and heterogeneous expression of prolactinomas, somatotropinomas, NS, and Cushing's disease can occur within families in the absence of MEN1/CNC.
  • [MeSH-major] Adenoma / genetics. Adenoma / pathology. Pituitary Neoplasms / genetics. Pituitary Neoplasms / pathology
  • [MeSH-minor] Adrenocorticotropic Hormone / secretion. Adult. Cyclic AMP-Dependent Protein Kinase RIalpha Subunit. Cyclic AMP-Dependent Protein Kinases / genetics. Female. Gonadotropins, Pituitary / metabolism. Humans. Immunohistochemistry. Male. Middle Aged. Pedigree. Pituitary Hormones, Anterior / metabolism. Prolactinoma / genetics. Prolactinoma / pathology. Retrospective Studies. Sequence Analysis, DNA


72. Gejman R, Batista DL, Zhong Y, Zhou Y, Zhang X, Swearingen B, Stratakis CA, Hedley-Whyte ET, Klibanski A: Selective loss of MEG3 expression and intergenic differentially methylated region hypermethylation in the MEG3/DLK1 locus in human clinically nonfunctioning pituitary adenomas. J Clin Endocrinol Metab; 2008 Oct;93(10):4119-25
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  • [Title] Selective loss of MEG3 expression and intergenic differentially methylated region hypermethylation in the MEG3/DLK1 locus in human clinically nonfunctioning pituitary adenomas.
  • CONTEXT: MEG3 is an imprinted gene encoding a novel noncoding RNA that suppresses tumor cell growth.
  • Although highly expressed in the normal human pituitary, it is unknown which of the normal pituitary cell types and pituitary tumors express MEG3.
  • OBJECTIVES: Our objectives were 1) to investigate cell-type- and tumor-type-specific expression of MEG3 in the human pituitary and 2) to investigate whether methylation in the intergenic differentially methylated region (IG-DMR) at the DLK1/MEG3 locus is involved in the loss of MEG3 expression in tumors.
  • DESIGN AND METHODS: RT-PCR, quantitative RT-PCR, Northern blot, and a combination of in situ hybridization and immunofluorescence were used to determine the cell-type- and tumor-type-specific MEG3 expression.
  • Bisulfite treatment and PCR sequencing of genomic DNA were used to measure the CpG methylation status in the normal and tumor tissues.
  • Five normal human pituitaries and 17 clinically nonfunctioning, 11 GH-secreting, seven prolactin-secreting, and six ACTH-secreting pituitary adenomas were used.
  • RESULTS: All normal human pituitary cell types express MEG3.
  • However, loss of MEG3 expression occurs only in nonfunctioning pituitary adenomas of a gonadotroph origin.
  • All other pituitary tumor phenotypes examined express MEG3.
  • Hypermethylation of the IG-DMR at the DLK1/MEG3 locus is present in nonfunctioning pituitary adenomas.
  • CONCLUSIONS: MEG3 is the first human gene identified expressed in multiple normal human pituitary cell types with loss of expression specifically restricted to clinically nonfunctioning pituitary adenomas.

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  • (PMID = 18628527.001).
  • [ISSN] 0021-972X
  • [Journal-full-title] The Journal of clinical endocrinology and metabolism
  • [ISO-abbreviation] J. Clin. Endocrinol. Metab.
  • [Language] ENG
  • [Grant] United States / NIDDK NIH HHS / DK / R01 DK040947; United States / NIDDK NIH HHS / DK / R01 DK-40947
  • [Publication-type] Journal Article; Research Support, N.I.H., Extramural
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / DLK1 protein, human; 0 / DNA, Intergenic; 0 / Intercellular Signaling Peptides and Proteins; 0 / MEG3 non-coding RNA, human; 0 / Membrane Proteins; 0 / Proteins; 0 / RNA, Long Noncoding
  • [Other-IDs] NLM/ PMC2579639
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73. Korbonits M, Carlsen E: Recent clinical and pathophysiological advances in non-functioning pituitary adenomas. Horm Res; 2009 Apr;71 Suppl 2:123-30
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  • [Title] Recent clinical and pathophysiological advances in non-functioning pituitary adenomas.
  • Pituitary adenomas are being recognized and diagnosed with increasing frequency.
  • One of the most common forms of pituitary lesion is the clinically non-functioning pituitary adenoma (NFPA), which is often diagnosed incidentally.
  • The vast majority of pituitary adenomas are sporadic, but familial adenomas can occur in the multiple pituitary adenoma type 1 syndrome, in Carney complex or in familial isolated pituitary adenoma.
  • Most often these are silent gonadotroph adenomas, with silent corticotroph or somatotroph adenomas occurring less frequently.
  • It is unclear why these silent adenomas do not release hormones at a clinically recognizable level, although it is probable that there is a continuum between fully functional and completely silent adenomas.
  • Temozolomide has been successfully used for the treatment of a few aggressive pituitary adenomas, and the response to this drug could be influenced by the expression of the DNA repair enzyme O-6-methylguanine DNA methyltransferase.
  • The early diagnosis, prediction of long-term outcome and treatment of NFPAs remain a challenge for endocrinologists.
  • [MeSH-major] Growth Hormone-Secreting Pituitary Adenoma. Prolactinoma
  • [MeSH-minor] ACTH-Secreting Pituitary Adenoma / diagnosis. ACTH-Secreting Pituitary Adenoma / metabolism. ACTH-Secreting Pituitary Adenoma / pathology. ACTH-Secreting Pituitary Adenoma / therapy. Female. Humans. Male

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  • [Copyright] Copyright 2009 S. Karger AG, Basel.
  • (PMID = 19407508.001).
  • [ISSN] 1423-0046
  • [Journal-full-title] Hormone research
  • [ISO-abbreviation] Horm. Res.
  • [Language] eng
  • [Publication-type] Journal Article; Review
  • [Publication-country] Switzerland
  • [Number-of-references] 58
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74. Giacomini D, Páez-Pereda M, Theodoropoulou M, Gerez J, Nagashima AC, Chervin A, Berner S, Labeur M, Refojo D, Renner U, Stalla GK, Arzt E: Bone morphogenetic protein-4 control of pituitary pathophysiology. Front Horm Res; 2006;35:22-31
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  • [Title] Bone morphogenetic protein-4 control of pituitary pathophysiology.
  • Bone morphogenetic protein-4 (BMP-4), a member of the transforming growth factor-Beta(TGF-Beta) family, is overexpressed in different prolactinoma models and induces the development of these lineage adenomas.
  • SMAD proteins activated by growth factors of the TGF-Beta and BMP family interact with estrogen receptors to stimulate the proliferation of prolactin and growth hormone-secreting cells.
  • Furthermore, BMP-4 presents differential expression in normal and adenomatous corticotropes and inhibitory action on corticotropinoma cell proliferation.
  • The present review highlights not only the crucial and opposite role of BMP-4 in the progression of pituitary adenomas but also that BMP-4 and retinoic acid interaction might serve as a potential new mechanism target for therapeutic approaches for Cushing disease.
  • [MeSH-major] Bone Morphogenetic Proteins / physiology. Pituitary Diseases / etiology
  • [MeSH-minor] Adrenocorticotropic Hormone / secretion. Animals. Bone Morphogenetic Protein 4. Gene Expression. Humans. Models, Biological. Neurons / secretion. Pituitary Gland / cytology. Pituitary Gland / growth & development. Pituitary Gland / metabolism. Pituitary Gland / secretion. Receptors, Transforming Growth Factor beta / metabolism. Transforming Growth Factor beta / physiology. Tretinoin / pharmacology

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  • (PMID = 16809920.001).
  • [ISSN] 0301-3073
  • [Journal-full-title] Frontiers of hormone research
  • [ISO-abbreviation] Front Horm Res
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't; Review
  • [Publication-country] Switzerland
  • [Chemical-registry-number] 0 / BMP4 protein, human; 0 / Bone Morphogenetic Protein 4; 0 / Bone Morphogenetic Proteins; 0 / Receptors, Transforming Growth Factor beta; 0 / Transforming Growth Factor beta; 5688UTC01R / Tretinoin; 9002-60-2 / Adrenocorticotropic Hormone
  • [Number-of-references] 42
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75. Xing B, Deng K, Ren ZY, Su CB, Wang RZ, Yang Y, Ma WB, Li YN: Magnetic resonance imaging characteristics and surgical results of adrenocorticotropin-secreting pituitary adenomas. Chin Med Sci J; 2008 Mar;23(1):44-8
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  • [Title] Magnetic resonance imaging characteristics and surgical results of adrenocorticotropin-secreting pituitary adenomas.
  • OBJECTIVE: To evaluate magnetic resonance imaging (MRI) characteristics and surgical results of adrenocorticotropin (ACTH)-secreting pituitary adenomas.
  • METHODS: MRI characteristics and relationship between MRI positive rate and surgical results of 266 patients with pathologically confirmed Cushing's disease were analyzed retrospectively.
  • All patients underwent thin-section sagittal and coronal scans of the pituitary gland before and after administration of gadolinium-diethylene triamine pentaacetic acid (Gd-DTPA) on a 1.5 Tesla MRI scanner, and dynamic enhanced MRI was performed in 39 patients.
  • RESULTS: Preoperative MRI revealed normal results in 41 (15.4%) cases, microadenoma in 179 (67.3%), macroadenoma in 42 (15.8%), and huge adenoma in 4 (1.5%).
  • Pituitary apoplexy was found in 13 (4.9%) cases.
  • Positive rate of ACTH-secreting adenomas was 84.6% (225/266) on MRI scans, and that of small microadenomas was 87.2% (34/39) on dynamic enhanced MRI scans.
  • Preoperative endocrinological tests of 199 cases supported the diagnosis of typical Cushing's disease, while the other 67 cases had atypical endocrinological results.
  • CONCLUSIONS: Enhanced coronal pituitary MRI is helpful for preoperative localization of ACTH-secreting pituitary microadenoma.

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  • (PMID = 18437910.001).
  • [ISSN] 1001-9294
  • [Journal-full-title] Chinese medical sciences journal = Chung-kuo i hsueh k'o hsueh tsa chih
  • [ISO-abbreviation] Chin. Med. Sci. J.
  • [Language] ENG
  • [Publication-type] Journal Article
  • [Publication-country] China
  • [Chemical-registry-number] 9002-60-2 / Adrenocorticotropic Hormone
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76. Barber TM, Adams E, Ansorge O, Byrne JV, Karavitaki N, Wass JA: Nelson's syndrome. Eur J Endocrinol; 2010 Oct;163(4):495-507
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  • Nelson's syndrome is a potentially life-threatening condition that does not infrequently develop following total bilateral adrenalectomy (TBA) for the treatment of Cushing's disease.
  • In this review article, we discuss some controversial aspects of Nelson's syndrome including diagnosis, predictive factors, aetiology, pathology and management based on data from the existing literature and the experience of our own tertiary centre.
  • We propose that Nelson's syndrome should be diagnosed in any patient with prior TBA for the treatment of Cushing's disease and with at least one of the following criteria: i) an expanding pituitary mass lesion compared with pre-TBA images;.
  • ii) an elevated 0800 h plasma level of ACTH (>500 ng/l) in addition to progressive elevations of ACTH (a rise of >30%) on at least three consecutive occasions.
  • Regarding predictive factors for the development of Nelson's syndrome post TBA, current evidence favours the presence of residual pituitary tumour on magnetic resonance imaging (MRI) post transsphenoidal surgery (TSS); an aggressive subtype of corticotrophinoma (based on MRI growth rapidity and histology of TSS samples); lack of prophylactic neoadjuvant pituitary radiotherapy at the time of TBA and a rapid rise of ACTH levels in year 1 post TBA.
  • Finally, more studies are needed to assess the efficacy of therapeutic strategies in Nelson's syndrome, including the alkylating agent, temozolomide, which holds promise as a novel and effective therapeutic agent in the treatment of associated aggressive corticotroph tumours.

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  • (PMID = 20668020.001).
  • [ISSN] 1479-683X
  • [Journal-full-title] European journal of endocrinology
  • [ISO-abbreviation] Eur. J. Endocrinol.
  • [Language] ENG
  • [Publication-type] Journal Article; Review
  • [Publication-country] England
  • [Chemical-registry-number] 0 / Alkylating Agents; 7GR28W0FJI / Dacarbazine; 85622-93-1 / temozolomide; 9002-60-2 / Adrenocorticotropic Hormone
  • [Number-of-references] 101
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77. Saeger W: [Effects of irradiation therapy and inhibiting drugs on the pituitary and its adenomas]. Pathologe; 2006 Feb;27(1):57-60
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  • [Title] [Effects of irradiation therapy and inhibiting drugs on the pituitary and its adenomas].
  • Radiation therapies of pituitary adenomas induce an increase in fibroses and nuclear pleomorphism.
  • Most growth hormone (GH) secreting pituitary adenomas react to somatostatin analogues by a distinct decrease of GH secretion.
  • Some cases show a shrinkage of adenomas that correlates with fibrosis of the tumor.
  • With these drugs, thyroid stimulating hormone secreting adenomas can also be treated.
  • Prolactin secreting adenomas are mostly treated primarily with dopamine agonists.
  • Up to 90% of cases show a strong decrease in hormone secretion and a distinct shrinkage of the adenomas based on strong decrease in adenoma cell volume.
  • Long-term medication with high doses of glucocorticoids induces Crooke's cells in the anterior pituitary.
  • These are suppressed ACTH cells and characterized by increased numbers of large lysosomes and dense bundles of cytofilaments.
  • [MeSH-major] Antineoplastic Agents / adverse effects. Antineoplastic Agents / therapeutic use. Pituitary Gland / pathology. Pituitary Neoplasms / drug therapy. Pituitary Neoplasms / radiotherapy. Radiotherapy / adverse effects

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  • (PMID = 16362259.001).
  • [ISSN] 0172-8113
  • [Journal-full-title] Der Pathologe
  • [ISO-abbreviation] Pathologe
  • [Language] ger
  • [Publication-type] English Abstract; Journal Article
  • [Publication-country] Germany
  • [Chemical-registry-number] 0 / Antineoplastic Agents; 0 / Dopamine Agonists; 0 / Glucocorticoids
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78. Kobayashi T: Long-term results of stereotactic gamma knife radiosurgery for pituitary adenomas. Specific strategies for different types of adenoma. Prog Neurol Surg; 2009;22:77-95
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  • [Title] Long-term results of stereotactic gamma knife radiosurgery for pituitary adenomas. Specific strategies for different types of adenoma.
  • Long-term results of gamma knife radiosurgery for pituitary adenomas are presented and treatment strategies for different adenoma types are discussed.
  • Two hundred and sixty-seven patients with pituitary adenoma have been treated by gamma knife radiosurgery during the past 12 years.
  • There were 131 cases of nonfunctioning and 136 cases of functioning adenomas, in which 71 GH-producing, 33 PRL-producing and 32 ACTH-producing adenomas were included.
  • Micro- and small adenomas could be cured by gamma knife radiosurgery alone.
  • Surgical or chemical debulking was necessary before radiosurgery for a large tumor with extrasellar extension.
  • Nonfunctioning adenomas showed higher control rates than functioning adenomas even with lower dose treatment.
  • Cushing disease showed the best response because of the smallest tumor size with the highest dose treatment.
  • The rate of hormone normalization was also high in Cushing disease but lower in prolactinoma and lowest in acromegaly.
  • High-dose treatment was necessary for functioning adenomas to control tumor growth and oversecretion of hormones.
  • In conclusion, gamma knife radiosurgery was effective and safe for the treatment of pituitary adenomas.
  • However, the treatment strategies should be specific to each adenoma type according to the radiosensitivity, chemosensitivity and biological nature of the tumor.
  • [MeSH-major] ACTH-Secreting Pituitary Adenoma / surgery. Acromegaly / surgery. Adenoma / surgery. Radiosurgery
  • [MeSH-minor] Adult. Aged. Aged, 80 and over. Child. Female. Follow-Up Studies. Growth Hormone-Secreting Pituitary Adenoma / pathology. Growth Hormone-Secreting Pituitary Adenoma / surgery. Humans. Magnetic Resonance Imaging. Male. Middle Aged. Patient Satisfaction. Pituitary ACTH Hypersecretion / pathology. Pituitary ACTH Hypersecretion / surgery. Prolactinoma / pathology. Prolactinoma / surgery. Treatment Outcome. Young Adult

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  • (PMID = 18948721.001).
  • [ISSN] 0079-6492
  • [Journal-full-title] Progress in neurological surgery
  • [ISO-abbreviation] Prog Neurol Surg
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] Switzerland
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79. de Bruin C, Hanson JM, Meij BP, Kooistra HS, Waaijers AM, Uitterlinden P, Lamberts SW, Hofland LJ: Expression and functional analysis of dopamine receptor subtype 2 and somatostatin receptor subtypes in canine cushing's disease. Endocrinology; 2008 Sep;149(9):4357-66
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  • [Title] Expression and functional analysis of dopamine receptor subtype 2 and somatostatin receptor subtypes in canine cushing's disease.
  • Cushing's disease (CD) is a severe disorder characterized by chronic hypercortisolism due to an ACTH-secreting pituitary adenoma.
  • Finding an effective and safe medical treatment for CD may improve long-term clinical outcome.
  • The recent demonstration of expression of somatostatin receptor subtypes (mainly sst5) and dopamine receptor subtype 2 (D2) in human corticotroph adenomas offers the possibility for medical treatment of CD with novel somatostatin analogs and dopamine agonists.
  • Interestingly, CD is a frequent disorder in dogs with striking clinical similarities with CD in humans.
  • Therefore, we investigated the expression and functional role of D2 and somatostatin receptors in corticotroph adenoma cells from 13 dogs with active CD that underwent therapeutic hypophysectomy and normal anterior pituitary cells from five dogs.
  • Quantitative RT-PCR and immunohistochemistry revealed that both in CD and normal anterior pituitary, sst2 was the predominant receptor subtype expressed, whereas D2 was modestly expressed and sst5 was expressed only at very low levels.
  • In primary cultures of canine adenomas (n = 7), the sst2-preferring agonist octreotide also showed the strongest ACTH-suppressive effects.
  • In conclusion, canine corticotroph adenomas provide an interesting model to study CD, but differences in somatostatin and dopamine receptor expression between humans and dogs should be taken into account when using dogs with CD as a model to evaluate efficacy of novel somatostatin analogs and dopamine agonists for human CD.
  • [MeSH-major] Dog Diseases / genetics. Pituitary ACTH Hypersecretion / genetics. Receptors, Dopamine D2 / genetics. Receptors, Dopamine D2 / physiology. Receptors, Somatostatin / genetics. Receptors, Somatostatin / physiology
  • [MeSH-minor] ACTH-Secreting Pituitary Adenoma / genetics. ACTH-Secreting Pituitary Adenoma / metabolism. ACTH-Secreting Pituitary Adenoma / pathology. Adenoma / genetics. Adenoma / metabolism. Adenoma / pathology. Animals. Cells, Cultured. Dexamethasone / pharmacology. Dogs. Female. Follow-Up Studies. Gene Expression Regulation, Neoplastic / drug effects. Male. Protein Isoforms / genetics. Protein Isoforms / metabolism. RNA, Messenger / metabolism

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  • (PMID = 18483151.001).
  • [ISSN] 0013-7227
  • [Journal-full-title] Endocrinology
  • [ISO-abbreviation] Endocrinology
  • [Language] eng
  • [Publication-type] Comparative Study; Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Protein Isoforms; 0 / RNA, Messenger; 0 / Receptors, Dopamine D2; 0 / Receptors, Somatostatin; 7S5I7G3JQL / Dexamethasone
  • [Other-IDs] NLM/ PMC2553383
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80. Marek J: [Pituitary adenomas--where is the treatment heading at the beginning of the 21st century?]. Vnitr Lek; 2010 Jul;56(7):690-4
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  • [Title] [Pituitary adenomas--where is the treatment heading at the beginning of the 21st century?].
  • To treat pituitary adenomas, three modes of treatment are usually combined: neurosurgery, radiation and pharmacological.
  • Patients with acromegaly are usually diagnosed late and thus many neurosurgeries fail to completely remove the adenoma.
  • The same surgical and Gamma Knife procedures are used in patients with the Cushing's disease and TSH-secreting adenomas.
  • Ketoconazole, metyrapone and cabergoline are used until the radiation effect in the Cushing's disease is complete, similarly, somatostatine analogues are used in TSH-secreting adenomas.
  • Nonfunctional adenomas are less responsive to pharmacological treatment.
  • Proautophagic cytostatic temozolamide has been used in aggressive pituitary adenomas and carcinomas.
  • [MeSH-major] Adenoma / therapy. Pituitary Neoplasms / therapy
  • [MeSH-minor] Acromegaly / etiology. Humans. Pituitary ACTH Hypersecretion / etiology. Prolactinoma / therapy

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  • (PMID = 20842914.001).
  • [ISSN] 0042-773X
  • [Journal-full-title] Vnitr̆ní lékar̆ství
  • [ISO-abbreviation] Vnitr Lek
  • [Language] cze
  • [Publication-type] English Abstract; Journal Article; Review
  • [Publication-country] Czech Republic
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81. Banasiak MJ, Malek AR: Nelson syndrome: comprehensive review of pathophysiology, diagnosis, and management. Neurosurg Focus; 2007;23(3):E13
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  • [Title] Nelson syndrome: comprehensive review of pathophysiology, diagnosis, and management.
  • Nelson syndrome (NS) is a rare clinical manifestation of an enlarging pituitary adenoma that can occur following bilateral adrenal gland removal performed for the treatment of Cushing disease.
  • It is characterized by excess adreno-corticotropin secretion and hyperpigmentation of the skin and mucus membranes.
  • The authors present a comprehensive review of the pathophysiology, diagnosis, and management of NS.
  • Corticotroph adenomas in NS remain challenging tumors that can lead to significant rates of morbidity and mortality.
  • Although the primary treatment for each tumor type may vary, it is important to consider all of the available options and select the one that is most appropriate for the individual case, particularly in cases of lesions resistant to intervention.


82. Rudnik A, Kos-Kudła B, Larysz D, Zawadzki T, Bazowski P: Endoscopic transsphenoidal treatment of hormonally active pituitary adenomas. Neuro Endocrinol Lett; 2007 Aug;28(4):438-44
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  • [Title] Endoscopic transsphenoidal treatment of hormonally active pituitary adenomas.
  • AIM OF THE STUDY: The paper presents endoscopic surgical technique used in the treatment of hormonally active pituitary adenomas and assessment of the method in terms of its effectiveness and safety.
  • MATERIAL AND METHODS: In 217 cases the surgery was performed due to pituitary adenomas applying the technique developed by Jho and Carrau, with our own modifications.
  • 70 patients were treated for hormonally active adenomas.
  • The group consisted of 36 somatotrophic adenomas, 21 prolactinomas and 13 corticotrophic adenomas.
  • RESULTS: Biochemical and neurosurgical criteria for complete resection were obtained in 21 (58.3%) of 36 patients with all somatotrophic adenomas.
  • Of the 13 patients with Cushing's disease 11 (84.6%) were cured.
  • In the postoperative course only 2 (2.8%) patients suffered liquorrhoeas and new anterior lobe pituitary insufficiency was noted in 8 (11.4%) cases.
  • CONCLUSIONS: Endoscopic technique is an effective method of treatment of hormonally active pituitary adenomas.
  • [MeSH-major] ACTH-Secreting Pituitary Adenoma / surgery. Adenoma / surgery. Endoscopy / methods. Growth Hormone-Secreting Pituitary Adenoma / surgery. Neurosurgical Procedures / methods. Pituitary Neoplasms / surgery. Prolactinoma / surgery

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  • (PMID = 17693972.001).
  • [ISSN] 0172-780X
  • [Journal-full-title] Neuro endocrinology letters
  • [ISO-abbreviation] Neuro Endocrinol. Lett.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] Sweden
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83. Amaral FC, Torres N, Saggioro F, Neder L, Machado HR, Silva WA Jr, Moreira AC, Castro M: MicroRNAs differentially expressed in ACTH-secreting pituitary tumors. J Clin Endocrinol Metab; 2009 Jan;94(1):320-3
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  • [Title] MicroRNAs differentially expressed in ACTH-secreting pituitary tumors.
  • OBJECTIVE: The aim of the study was to analyze the differential expression of let-7a, miR-15a, miR-16, miR-21, miR-141, miR-143, miR-145, and miR-150 in corticotropinomas and normal pituitary tissue and verify whether their profile of expression correlates with tumor size or remission after treatment.
  • MATERIAL AND METHODS: ACTH-secreting pituitary tumor samples were obtained during transphenoidal surgery from patients with Cushing disease and normal pituitary tissues from autopsies.
  • RESULTS: We found underexpression of miR-145 (2.0-fold; P = 0.04), miR-21 (2.4-fold; P = 0.004), miR-141 (2.6-fold; P = 0.02), let-7a (3.3-fold; P = 0.003), miR-150 (3.8-fold; P = 0.04), miR-15a (4.5-fold; P = 0.03), miR-16 (5.0-fold; P = 0.004), and miR-143 (6.4-fold; P = 0.004) in ACTH-secreting pituitary tumors when compared to normal pituitary tissues.
  • There were no differences between miRNA expression and tumor size as well as miRNA expression and ratio of remission after surgery, except in patients presenting lower miR-141 expression who showed a better chance of remission.
  • However, the lack of knowledge about miRNA target genes postpones full understanding of the biological functions of down-regulated or up-regulated miRNAs in corticotropinomas.
  • [MeSH-major] ACTH-Secreting Pituitary Adenoma / genetics. Adenoma / genetics. MicroRNAs / analysis
  • [MeSH-minor] Adolescent. Adult. Female. Humans. Male. Middle Aged. Pituitary ACTH Hypersecretion / genetics. Young Adult

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  • (PMID = 18840638.001).
  • [ISSN] 0021-972X
  • [Journal-full-title] The Journal of clinical endocrinology and metabolism
  • [ISO-abbreviation] J. Clin. Endocrinol. Metab.
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / MicroRNAs
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84. Scheithauer BW, Silva AI, Atkinson JL, Nippoldt TB, Kaufmann TJ, Kovacs K, Horvath E, Lloyd R: Pituitary adenoma with tumoral granulomatous reaction. Endocr Pathol; 2007;18(2):86-90
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  • [Title] Pituitary adenoma with tumoral granulomatous reaction.
  • Herein, we report a unique case of an adult male with a corticotrophic pituitary adenoma of silent subtype 1 exhibiting conspicuous idiopathic tumoral noncaseating granulomatous inflammation.
  • [MeSH-major] ACTH-Secreting Pituitary Adenoma / pathology. Adenoma / pathology. Granuloma / pathology. Pituitary Neoplasms / pathology
  • [MeSH-minor] Blood Pressure. Humans. Immunohistochemistry. Magnetic Resonance Imaging. Male. Microscopy, Electron. Middle Aged. Pituitary Hormones / blood. Reverse Transcriptase Polymerase Chain Reaction. Testosterone / blood. Thyrotropin / blood. Thyroxine / blood. Vision Disorders / etiology

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  • (PMID = 17916998.001).
  • [ISSN] 1046-3976
  • [Journal-full-title] Endocrine pathology
  • [ISO-abbreviation] Endocr. Pathol.
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Pituitary Hormones; 3XMK78S47O / Testosterone; 9002-71-5 / Thyrotropin; Q51BO43MG4 / Thyroxine
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85. Nandagopal R, Vortmeyer A, Oldfield EH, Keil MF, Stratakis CA: Cushing's syndrome due to a pituitary corticotropinoma in a child with tuberous sclerosis: an association or a coincidence? Clin Endocrinol (Oxf); 2007 Oct;67(4):639-41
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  • [Title] Cushing's syndrome due to a pituitary corticotropinoma in a child with tuberous sclerosis: an association or a coincidence?
  • [MeSH-major] ACTH-Secreting Pituitary Adenoma / complications. Cushing Syndrome / etiology. Pituitary Neoplasms / complications. Tuberous Sclerosis / complications


86. Minniti G, Osti M, Jaffrain-Rea ML, Esposito V, Cantore G, Maurizi Enrici R: Long-term follow-up results of postoperative radiation therapy for Cushing's disease. J Neurooncol; 2007 Aug;84(1):79-84
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  • [Title] Long-term follow-up results of postoperative radiation therapy for Cushing's disease.
  • OBJECTIVES: Radiotherapy is currently used in patients with residual or recurrent pituitary adenomas after surgery.
  • However, there is little information of long-term outcome of patients with Cushing's disease following radiotherapy.
  • We assessed the long-term efficacy and toxicity of conventional radiotherapy in the control of Cushing's disease after unsuccessful transsphenoidal surgery.
  • PATIENTS AND METHODS: Forty patients with Cushing's disease were treated with conventional external beam radiotherapy at our Institution between 1988 and 2002.
  • The persistence of active disease after surgery was diagnosed by the increased high plasma cortisol levels, high 24 h urinary cortisol levels and absence of cortisol suppression after administration of dexamethasone.
  • CONCLUSION: Radiotherapy is effective in the long-term tumour- and hormone hypersecretion control of ACTH-secreting pituitary adenomas, however with a high prevalence of hypopituitarism.
  • [MeSH-major] ACTH-Secreting Pituitary Adenoma / radiotherapy. Adenoma / radiotherapy. Neoplasm Recurrence, Local / radiotherapy. Neoplasm, Residual / radiotherapy. Pituitary ACTH Hypersecretion / radiotherapy
  • [MeSH-minor] Adult. Disease-Free Survival. Female. Follow-Up Studies. Humans. Hydrocortisone / blood. Male. Middle Aged

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  • (PMID = 17356896.001).
  • [ISSN] 0167-594X
  • [Journal-full-title] Journal of neuro-oncology
  • [ISO-abbreviation] J. Neurooncol.
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
  • [Chemical-registry-number] WI4X0X7BPJ / Hydrocortisone
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87. Evang JA, Borota OC, Melum E, Holm R, Ramm-Pettersen J, Bollerslev J, Berg JP: HDAC2 expression and variable number of repeats in exon 1 of the HDAC2 gene in corticotroph adenomas. Clin Endocrinol (Oxf); 2010 Aug;73(2):229-35
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  • [Title] HDAC2 expression and variable number of repeats in exon 1 of the HDAC2 gene in corticotroph adenomas.
  • OBJECTIVES: Alterations in protein expression of histone deacetylase 2 (HDAC2) have been demonstrated in various neoplasms, and lack of nuclear expression of HDAC2 has previously been shown in some human and canine corticotroph adenomas.
  • This study aimed to examine HDAC2 expression in a Norwegian cohort of corticotroph adenomas, screen for exonic HDAC2 gene variants in the adenomas and correlate the results with clinical data.
  • PATIENTS AND DESIGN: Forty-four patients with verified Cushing's disease or Nelson's syndrome, positive ACTH staining and tissue available for immunohistochemistry and/or DNA sequencing were included.
  • RESULTS: Histone deacetylase 2 expression examined by immunohistochemistry was strongly reduced in 3/30 adenomas.
  • A previously unidentified insertion of three bases in a region coding for a polyserine cluster in exon 1 of the HDAC2 gene was identified in 6/32 adenomas.
  • The same insertion was also found in 28/94 of the controls (i.e., not significantly different from the patients).
  • CONCLUSIONS: Strongly reduced HDAC2 protein expression was confirmed in a small portion of corticotroph tumours.
  • Mutations in HDAC2 exons are unlikely to play an important role in the development of corticotroph adenomas.
  • [MeSH-major] ACTH-Secreting Pituitary Adenoma / genetics. Adenoma / genetics. Histone Deacetylase 2 / genetics. Minisatellite Repeats

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  • (PMID = 20346000.001).
  • [ISSN] 1365-2265
  • [Journal-full-title] Clinical endocrinology
  • [ISO-abbreviation] Clin. Endocrinol. (Oxf)
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] England
  • [Chemical-registry-number] EC 3.5.1.98 / HDAC2 protein, human; EC 3.5.1.98 / Histone Deacetylase 2
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88. Mayberg M, Vermeulen S: Advances in stereotactic radiosurgery in the treatment of pituitary adenomas. Curr Opin Endocrinol Diabetes Obes; 2007 Aug;14(4):296-300
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  • [Title] Advances in stereotactic radiosurgery in the treatment of pituitary adenomas.
  • PURPOSE OF REVIEW: Stereotactic radiosurgery has become the preferred radiation treatment modality for secreting and nonsecreting pituitary adenomas, although randomized studies comparing delivery systems, fractionation and dose have not been performed.
  • With a reduction in acute and chronic side effects, the total dose to abnormal tissue can be increased allowing for greater tumor control.
  • SUMMARY: The radiobiology, control rates and normal tissue tolerances of stereotactic radiosurgery in the treatment of pituitary adenomas is reviewed.
  • [MeSH-major] Adenoma / surgery. Pituitary Neoplasms / surgery. Radiosurgery
  • [MeSH-minor] Acromegaly / radiotherapy. Acromegaly / surgery. Humans. Pituitary ACTH Hypersecretion / radiotherapy. Pituitary ACTH Hypersecretion / surgery. Prolactinoma / surgery. Prolactinoma / therapy

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  • (PMID = 17940455.001).
  • [ISSN] 1752-2978
  • [Journal-full-title] Current opinion in endocrinology, diabetes, and obesity
  • [ISO-abbreviation] Curr Opin Endocrinol Diabetes Obes
  • [Language] eng
  • [Publication-type] Journal Article; Review
  • [Publication-country] England
  • [Number-of-references] 18
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89. Tateno T, Kato M, Tani Y, Oyama K, Yamada S, Hirata Y: Differential expression of somatostatin and dopamine receptor subtype genes in adrenocorticotropin (ACTH)-secreting pituitary tumors and silent corticotroph adenomas. Endocr J; 2009;56(4):579-84
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  • [Title] Differential expression of somatostatin and dopamine receptor subtype genes in adrenocorticotropin (ACTH)-secreting pituitary tumors and silent corticotroph adenomas.
  • Somatostatin analogs and dopamine agonists are clinically used for medical therapy of functioning pituitary tumors, such as growth hormone- and prolactin-secreting tumors, however, their effects on ACTH-secreting tumors are controversial.
  • This study was aimed to determine whether somatostatin receptor (SSTR) subtype (1-5) and dopamine receptor type 2 (D2R) are differentially expressed in pituitary tumors causing Cushing's disease (CD), silent corticotroph adenoma (SCA), and non-functioning pituitary tumor (NFT).
  • Tissue specimens were obtained from 35 pituitary tumors during transsphenoidal surgery.
  • Both SSTR1 and 2 mRNA levels in SCA were greater than CD, while SSTR1 mRNA levels, but not SSTR2, in SCA were also greater than NFT.
  • SSTR5 mRNA levels in CD were greater than SCA, but did not differ between NFT and SCA.
  • [MeSH-major] ACTH-Secreting Pituitary Adenoma / genetics. Adenoma / genetics. Pituitary ACTH Hypersecretion / metabolism. Pituitary Neoplasms / genetics. Receptors, Dopamine D2 / genetics. Receptors, Somatostatin / physiology

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  • (PMID = 19318729.001).
  • [ISSN] 1348-4540
  • [Journal-full-title] Endocrine journal
  • [ISO-abbreviation] Endocr. J.
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] Japan
  • [Chemical-registry-number] 0 / Receptors, Dopamine D2; 0 / Receptors, Somatostatin; 0 / somatostatin receptor 2; 0 / somatostatin receptor 5; 0 / somatostatin receptor type 1; 9002-60-2 / Adrenocorticotropic Hormone
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90. Saveanu A, Gunz G, Guillen S, Dufour H, Culler MD, Jaquet P: Somatostatin and dopamine-somatostatin multiple ligands directed towards somatostatin and dopamine receptors in pituitary adenomas. Neuroendocrinology; 2006;83(3-4):258-63
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  • [Title] Somatostatin and dopamine-somatostatin multiple ligands directed towards somatostatin and dopamine receptors in pituitary adenomas.
  • AIM: We report the comparative efficacy of octreotide, cabergoline and multiple ligands directed towards the different somatostatin subtypes (ssts), such as BIM-23A779 and SOM-230, and of chimeric analogs which bind both somatostatin and the dopamine D2 receptors (D2R), such as BIM-23A760 and BIM-23A781, in cell cultures from human growth hormone (GH)-secreting pituitary adenomas.
  • PROCEDURES: RT-PCR analysis of the quantitative expression of the different ssts and D2R mRNAs was performed on tumor fragments of 22 GH-secreting adenomas collected after surgery.
  • Pharmacological studies, using the different ligands, were performed on cell cultures of such tumors.
  • In each tumor tested, 3 patterns of response, in terms of GH suppression, were observed.
  • Among the compounds tested, the most potent inhibitors of GH secretion were the sst2, sst5, D2R chimeric compound BIM-23A760, followed by the sst universal ligand SOM-230.
  • The effect of multiple receptor activation on the functions of other pituitary tumor types, such as prolactinomas and corticotropinomas, is not presently analyzed, and the efficacy of multireceptor ligands remains to be elucidated.
  • [MeSH-major] Adenoma / drug therapy. Antineoplastic Agents, Hormonal / therapeutic use. Dopamine / analogs & derivatives. Pituitary Neoplasms / drug therapy. Somatostatin / analogs & derivatives
  • [MeSH-minor] Adult. Drug Screening Assays, Antitumor. Ergolines / therapeutic use. Female. Human Growth Hormone / drug effects. Human Growth Hormone / metabolism. Humans. Ligands. Male. Octreotide / therapeutic use. RNA, Messenger / analysis. Receptors, Dopamine D2 / drug effects. Receptors, Dopamine D2 / genetics. Receptors, Dopamine D2 / metabolism. Receptors, Somatostatin / classification. Receptors, Somatostatin / drug effects. Receptors, Somatostatin / genetics. Receptors, Somatostatin / metabolism. Recombinant Fusion Proteins / therapeutic use. Tumor Cells, Cultured

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  • (PMID = 17047391.001).
  • [ISSN] 0028-3835
  • [Journal-full-title] Neuroendocrinology
  • [ISO-abbreviation] Neuroendocrinology
  • [Language] eng
  • [Publication-type] Clinical Trial; Comparative Study; Journal Article
  • [Publication-country] Switzerland
  • [Chemical-registry-number] 0 / Antineoplastic Agents, Hormonal; 0 / BIM 23268; 0 / Ergolines; 0 / Ligands; 0 / RNA, Messenger; 0 / Receptors, Dopamine D2; 0 / Receptors, Somatostatin; 0 / Recombinant Fusion Proteins; 12629-01-5 / Human Growth Hormone; 51110-01-1 / Somatostatin; LL60K9J05T / cabergoline; RWM8CCW8GP / Octreotide; VTD58H1Z2X / Dopamine
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91. Prevedello DM, Pouratian N, Sherman J, Jane JA Jr, Vance ML, Lopes MB, Laws ER Jr: Management of Cushing's disease: outcome in patients with microadenoma detected on pituitary magnetic resonance imaging. J Neurosurg; 2008 Oct;109(4):751-9
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  • [Title] Management of Cushing's disease: outcome in patients with microadenoma detected on pituitary magnetic resonance imaging.
  • OBJECT: Outcomes of therapy for Cushing's disease (CD) vary depending on different aspects of presentation and diagnostic studies.
  • The patients included in the study were considered to be optimal surgical candidates, defined as an adult (>18 years of age) with classic clinical features of CD, laboratory studies confirming a central (pituitary/hypothalamic) adrenocorticotropic hormone-dependent source of disease, and an MR imaging study revealing a microadenoma in the sella turcica.
  • Surgical remission was achieved in 148 patients (88.6%), which was correlated with the surgeon's intraoperative identification of an adenoma (p=0.03).
  • Histopathological confirmation of an adrenocorticotropic hormone-secreting adenoma strongly correlated with remission (p=0.0001).
  • Gamma Knife surgery was the most common modality of radiotherapy used to treat 31 patients (18.5%) who did not achieve remission or later presented with recurrent disease.
  • CONCLUSIONS: Even in patients with ideal diagnostic criteria of CD, there remain a significant number of cases in which TSS alone is not adequate to assure long-lasting remission.
  • [MeSH-major] ACTH-Secreting Pituitary Adenoma / pathology. ACTH-Secreting Pituitary Adenoma / surgery. Adenoma / pathology. Adenoma / surgery. Pituitary ACTH Hypersecretion / pathology. Pituitary ACTH Hypersecretion / surgery

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  • [CommentIn] J Neurosurg. 2012 Feb;116(2):269-71; discussion 270-1 [21923245.001]
  • (PMID = 18826366.001).
  • [ISSN] 0022-3085
  • [Journal-full-title] Journal of neurosurgery
  • [ISO-abbreviation] J. Neurosurg.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] United States
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92. Roelfsema F, Kok S, Kok P, Pereira AM, Biermasz NR, Smit JW, Frolich M, Keenan DM, Veldhuis JD, Romijn JA: Pituitary-hormone secretion by thyrotropinomas. Pituitary; 2009;12(3):200-10
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  • [Title] Pituitary-hormone secretion by thyrotropinomas.
  • Hormone secretion by somatotropinomas, corticotropinomas and prolactinomas exhibits increased pulse frequency, basal and pulsatile secretion, accompanied by greater disorderliness.
  • Regulation of non-TSH pituitary hormones in this context is not well understood.
  • Cross-ApEn synchrony between TSH and GH did not differ between patients and controls, but TSH and PRL synchrony was reduced in patients.
  • We conclude that TSH secretion by thyrotropinomas shares many characteristics of other pituitary hormone-secreting adenomas.
  • In addition, abnormalities in GH and PRL secretion exist ranging from decreased (joint) regularity to overt hypersecretion, although not always clinically obvious, suggesting tumoral transformation of thyrotrope lineage cells.
  • [MeSH-major] Adenoma / physiopathology. Pituitary Hormones / blood. Pituitary Hormones / secretion. Pituitary Neoplasms / blood

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  • (PMID = 19051037.001).
  • [ISSN] 1573-7403
  • [Journal-full-title] Pituitary
  • [ISO-abbreviation] Pituitary
  • [Language] eng
  • [Grant] United States / NCRR NIH HHS / RR / M01 RR000585
  • [Publication-type] Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Pituitary Hormones; 67763-96-6 / Insulin-Like Growth Factor I; 9002-62-4 / Prolactin; 9002-71-5 / Thyrotropin; 9002-72-6 / Growth Hormone
  • [Other-IDs] NLM/ PMC2712623
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93. Castillo VA, Gómez NV, Lalia JC, Cabrera Blatter MF, García JD: Cushing's disease in dogs: cabergoline treatment. Res Vet Sci; 2008 Aug;85(1):26-34
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  • [Title] Cushing's disease in dogs: cabergoline treatment.
  • The treatment of pituitary-dependent hyperadrenocorticism (PDH) in dogs has for a long time been focused on inhibiting the adrenal gland using drugs such as o-p'-DDD, Ketoconazole and Trilostane, without attacking the primary cause: the corticotrophinoma.
  • Corticotroph cells can express the D2 dopaminergic receptor; therefore cabergoline (Cbg) could be effective as a treatment.
  • A year after the treatment, there was a significant decrease in ACTH (p<0.0001), alpha-MSH (p<0.01), urinary cortisol/creatinine ratio (p<0.001), and of the tumor size (p<0.0001) evaluated by nuclear magnetic resonance.
  • [MeSH-major] Dog Diseases / drug therapy. Dopamine Agonists / therapeutic use. Ergolines / therapeutic use. Pituitary ACTH Hypersecretion / veterinary

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  • (PMID = 17910968.001).
  • [ISSN] 0034-5288
  • [Journal-full-title] Research in veterinary science
  • [ISO-abbreviation] Res. Vet. Sci.
  • [Language] eng
  • [Publication-type] Controlled Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] England
  • [Chemical-registry-number] 0 / Dopamine Agonists; 0 / Ergolines; 581-05-5 / alpha-MSH; 9002-60-2 / Adrenocorticotropic Hormone; LL60K9J05T / cabergoline; R9400W927I / Ketoconazole
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94. Collie RB, Collie MJ: Extracranial thyroid-stimulating hormone-secreting ectopic pituitary adenoma of the nasopharynx. Otolaryngol Head Neck Surg; 2005 Sep;133(3):453-4
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  • [Title] Extracranial thyroid-stimulating hormone-secreting ectopic pituitary adenoma of the nasopharynx.
  • [MeSH-major] ACTH Syndrome, Ectopic / diagnosis. Adenoma / diagnosis. Adenoma / secretion. Choristoma / diagnosis. Nasopharyngeal Neoplasms / diagnosis. Nasopharyngeal Neoplasms / secretion. Pituitary Gland. Thyrotropin / secretion

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  • (PMID = 16143200.001).
  • [ISSN] 0194-5998
  • [Journal-full-title] Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery
  • [ISO-abbreviation] Otolaryngol Head Neck Surg
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 9002-71-5 / Thyrotropin
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95. Bernreuther C, Flitsch J, Lüdecke DK, Hagel C: A 61-year-old man with hyponatremia. Brain Pathol; 2008 Apr;18(2):283-7
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  • Endocrinologically, low levels for ADH, cortisol and testosterone as well as low-normal values for ACTH, LH and FSH were detected.
  • Cranial computed tomography and MRI scans revealed an intra- and suprasellar tumor of adenoma-like appearance with elevation of the optic chiasm.
  • After transsphenoidal resection of the tumor, no additional anterior lobe insufficiencies or diabetes insipidus occurred.
  • Histological examination revealed a tumor consisting of spindle-shaped cells of uniformly high cellularity with no evidence of hypocellular areas.
  • An intrasellar cellular schwannoma clinically and radiologically mimicking a non-secreting pituitary adenoma is uncommon.
  • However, rare entities like schwannomas, melanocytomas or pituicytomas have to be considered in addition to the more common tumors like pituitary adenomas and meningiomas.

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  • (PMID = 18363939.001).
  • [ISSN] 1015-6305
  • [Journal-full-title] Brain pathology (Zurich, Switzerland)
  • [ISO-abbreviation] Brain Pathol.
  • [Language] eng
  • [Publication-type] Case Reports; Letter
  • [Publication-country] Switzerland
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96. Gao C, Fu X, Pan Y, Li Q: Surgical treatment of pancreatic neuroendocrine tumors: report of 112 cases. Dig Surg; 2010 Aug;27(3):197-204
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  • OBJECTIVES: To review the clinical data of a group of patients with pancreatic neuroendocrine tumors (pNETs) and to investigate the role of surgery in the treatment for pNETs by analyzing clinical manifestations and postoperative course of this rare disease.
  • Patients' data related to demographics and characteristics, diagnostic studies, surgical and tumor characteristics and survival were retrospectively reviewed.
  • RESULTS: Forty-six patients (41.1%) had a well-differentiated neuroendocrine tumor (WDT), 44 (48.2%) a well-differentiated neuroendocrine carcinoma (WD-Ca) and 12 (10.7%) a poorly differentiated neuroendocrine carcinoma (PD-Ca).
  • Nonfunctional tumors were seen in 65 (58.0%) patients, whereas functional tumors were found in 47 (42.0%) patients, including 26 insulinomas, 17 gastrinomas, 2 VIPomas, 1 glucagonoma, and 1 ACTHoma.
  • Survival was significantly related to the type of neuroendocrine tumor (p = 0.001).
  • The 5-year survival rate differed significantly between patients with tumor node metastasis (TNM) stage I and II disease and those with stage III and IV tumors (p = 0.011).
  • Malignant cases should be treated with aggressive radical surgery to achieve complete tumor resection and potential for long-term survival.

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  • (PMID = 20571266.001).
  • [ISSN] 1421-9883
  • [Journal-full-title] Digestive surgery
  • [ISO-abbreviation] Dig Surg
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] Switzerland
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97. Asano S, Ooka H, Okazaki R, Ishikawa T, Ochiai H, Nakashima M, Ide F, Hasegawa I, Miyawaki S, Nakaguchi H, Murakami M, Ogino Y, Takano K, Matsuno A: Long-term remission of cyclic Cushing's disease that was diagnosed and treated surgically in non-active phase. Endocr J; 2007 Jun;54(3):407-12
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Long-term remission of cyclic Cushing's disease that was diagnosed and treated surgically in non-active phase.
  • Cyclic Cushing's disease is a rare clinical entity that is defined as a periodic excessive production of adrenocorticotropic hormone (ACTH) and cortisol.
  • Only 42 cases with cyclic Cushing's disease have been reported in the literature.
  • The diagnosis is very difficult because of the fluctuating secretion of ACTH and cortisol.
  • We report a 78-year-old woman with a pituitary adenoma presenting with cyclic Cushing's disease.
  • 1) MRI study detected the presence of an adenoma and selective venous sampling in the cavernous sinus disclosed the hypersecretion of ACTH from a pituitary adenoma.
  • These neuroimaging and endocrinological studies were helpful for the