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1. Kazakov AA, Grishina EE, Tarantul VZ, Gening LV: Effect of human cell malignancy on activity of DNA polymerase iota. Biochemistry (Mosc); 2010 Jul;75(7):905-11
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • To clarify the possible role of incorrect DNA polymerase iota (Pol iota) function in increased frequency of mutations in mammalian cells, the activity of this enzyme in extracts of cells of different mouse organs and human eye (melanoma) and eyelid (basal-cell skin carcinoma) tumor cells was studied.
  • Both Mg2+, considered as the main activator of the enzyme reaction of in vivo DNA replication, and Mn2+, that activates homogeneous Pol iota preparations in experiments in vitro more efficiently compared to all other bivalent cations, were used as cofactors of the DNA polymerase reaction in these experiments.
  • In the presence of Mn2+ the Pol iota activity in the basal-cell carcinoma exceeded 2.5-fold that in control cells (benign tumors from the same eyelid region).
  • In extracts of melanoma cells in the presence of either cation, the level of the enzyme activity was approximately equal to that in extracts of cells of surrounding tumor-free tissues as well as in eyes removed after traumas.
  • [MeSH-minor] Animals. Cell Line, Tumor. Enzyme Activation / drug effects. Enzyme Activators / pharmacology. Humans. Magnesium / pharmacology. Manganese / pharmacology. Mice. Mice, Inbred C57BL. Mutation

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  • Hazardous Substances Data Bank. MAGNESIUM, ELEMENTAL .
  • Hazardous Substances Data Bank. MANGANESE, ELEMENTAL .
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  • (PMID = 20673215.001).
  • [ISSN] 1608-3040
  • [Journal-full-title] Biochemistry. Biokhimii︠a︡
  • [ISO-abbreviation] Biochemistry Mosc.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Enzyme Activators; 42Z2K6ZL8P / Manganese; EC 2.7.7.- / DNA polymerase iota; EC 2.7.7.7 / DNA-Directed DNA Polymerase; I38ZP9992A / Magnesium
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2. Holak H, Weber U, Holak N, Donhuijsen K: [Neuroendocrine tumors of visual system--Merkel cell carcinoma]. Klin Oczna; 2003;105(6):362-6
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • MATERIAL AND METHODS: In the last eight years the Merkel cell carcinoma was diagnosed in four patients and was treated by wide resection, radiotherapy and cytostatic drugs.
  • Characteristic is clinical uniform appearance of the tumor as painless, reddish nodule with smooth surface, telangiectatic blood vessels, fast growing and fast leading to metastasis.
  • Furthermore, the histological characteristics of the tumor were found as well as NSE, S100 proteins and neuroendocrine granula, which allow to classify to the APUD--system and to distinguish from the more benign tumors.
  • CONCLUSIONS: As neuroendocrine tumor the Merkel cell carcinoma represents a high malignant tumor in ophthalmology.
  • The certain diagnosis is only made by histological and immunohistological examination.
  • [MeSH-major] Carcinoma, Merkel Cell / diagnosis. Carcinoma, Merkel Cell / therapy. Eyelid Neoplasms / diagnosis. Eyelid Neoplasms / therapy

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  • (PMID = 15049256.001).
  • [ISSN] 0023-2157
  • [Journal-full-title] Klinika oczna
  • [ISO-abbreviation] Klin Oczna
  • [Language] pol
  • [Publication-type] Case Reports; English Abstract; Journal Article; Review
  • [Publication-country] Poland
  • [Number-of-references] 16
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3. Robinson JW, Brownstein S, Jordan DR, Hodge WG: Conjunctival mucoepidermoid carcinoma in a patient with ocular cicatricial pemphigoid and a review of the literature. Surv Ophthalmol; 2006 Sep-Oct;51(5):513-9
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • Invasive mucoepidermoid carcinoma of the conjunctiva of the left lower eyelid was diagnosed in an orbital exenteration specimen of a 57-year-old woman, after a biopsy of the same lesion was originally diagnosed as invasive squamous cell carcinoma.
  • The woman was undergoing mitomycin C injections for ocular cicatricial pemphigoid, diagnosed in the same eye 2 years prior to identification of the neoplasm.
  • The tumor invaded the cornea, sclera, lacrimal gland, regional small nerves, and lymphatics, but did not show intraocular involvement.
  • [MeSH-major] Carcinoma, Mucoepidermoid / pathology. Conjunctival Neoplasms / pathology. Conjunctivitis / complications. Pemphigoid, Benign Mucous Membrane / complications
  • [MeSH-minor] Basement Membrane / pathology. Biopsy. Drug Therapy, Combination. Female. Fluorometholone / therapeutic use. Humans. Middle Aged. Mitomycin / therapeutic use. Neoplasm Invasiveness. Ofloxacin / therapeutic use


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4. Zheng JW, Wang YA, Zhou GY, Zhu HG, Ye WM, Zhang ZY: [Head and neck hemangiomas: how and when to treat]. Shanghai Kou Qiang Yi Xue; 2007 Aug;16(4):337-42
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • Hemangiomas are common benign vascular tumors of infancy characterized by a proliferative growth phase followed by very slow inevitable regression (involutive phase) between one to ten years of age, about 60% to 70% of the lesions are found in the head and neck region.
  • There are many treatment modalities reported in the literature for head and neck hemangiomas, including wait and see policy, drug therapy, sclerotherapy (steroids, bleomycin), cryotherapy, isotope radiotherapy, laser therapy, and surgical therapy.
  • A white or pink macule, a port-wine stain-like lesion initially appearing in the children can be effectively and easily removed by laser, thus preventing a growth in the size in the early stage. (2) The term of "wait and see" should be substituted by "close observation", and this approach should only be reserved for hemangiomas which are without visible growth or in the involutive phase. (3) Systematic drug therapy (steroids, interferon alpha-2a ) should be considered for large hemangioma, multiple hemangiomas, life-threatening hemangiomas and hemangiomas with complications such as ulceration, infection, bleeding, dysfunction, etc.
  • Congestive heart failure, consumptive coagulopathy, and thrombocytopenia are also urgent indications for the institution of corticoid therapy. (4) Growing hemangioma can be treated effectively by systematic drug therapy, sclerotherapy, laser therapy or combined therapy.
  • For larger and deeper hemangiomas up to a depth of 2.0 cm, percutaneous interstitial Nd:YAG laser treatment may be preferred, because it may decrease possible cutaneous skin damage and more effectively reduce bulky, deep lesion. (5) Topical application of imiquimoid and intratumoral injection of steroids or bleomycin can be used in selected patients with rapidly growing hemangioma. (6) The indication for a primary operation is rare and limited to large hemangiomas in the eyelid or hemangiomas on the scalp.
  • A successful treatment of hemangiomas should be individualized and based on the size of the tumor, the localization, and the therapies available.

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  • (PMID = 17924011.001).
  • [ISSN] 1006-7248
  • [Journal-full-title] Shanghai kou qiang yi xue = Shanghai journal of stomatology
  • [ISO-abbreviation] Shanghai Kou Qiang Yi Xue
  • [Language] chi
  • [Publication-type] Editorial; English Abstract
  • [Publication-country] China
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