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Strana 1 od 46 výsledky
Different organization of base excision repair of uracil in DNA in nuclei and mitochondria and selective upregulation of mitochondrial uracil-DNA glycosylase after oxidative stress.
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Oxidative stress in the brain may cause neuro-degeneration, possibly due to DNA damage. Oxidative base lesions in DNA are mainly repaired by base excision repair (BER). The DNA glycosylases Nei-like DNA glycosylase 1 (NEIL1), Nei-like DNA glycosylase 2 (NEIL2), mitochondrial uracil-DNA glycosylase 1
Genetic variability in DNA repair proteins in age-related macular degeneration.
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The pathogenesis of age-related macular degeneration (AMD) is complex and involves interactions between environmental and genetic factors, with oxidative stress playing an important role inducing damage in biomolecules, including DNA. Therefore, genetic variability in the components of DNA repair
Health-related quality of life in patients with colorectal cancer who receive oral uracil and tegafur plus leucovorin.
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OBJECTIVE
Adjuvant chemotherapy with oral uracil/tegafur plus leucovorin has been acknowledged to be a standard treatment for Stage II or III cancer of the colon. The objective of the study was to examine the health-related quality of life during treatment in patients with colorectal cancer who
Oral tegafur-uracil plus folinic acid versus intravenous 5-fluorouracil plus folinic acid as adjuvant chemotherapy of colon cancer.
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To compare, in terms of compliance, toxicity, quality of life (QOL) and efficacy, intravenous 5-fluorouracil plus folinic acid with oral tegafur-uracil plus folinic acid as postoperative adjuvant chemotherapy after curative resection in patients with Dukes' stage B2 and C2 colon cancer. Among all
Raynaud's phenomenon possibly induced by a compund drug of tegafur and uracil.
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We describe a 50-year-old woman who noted acral hyperpigmentation, sclerodactyly and Raynaud's phenomenon with 1:160 of antinuclear antibody titer after treatment with a compound drug with tegafur and uracil. Histological findings of the finger and palm included hyperkeratosis, vacuolar degeneration
Dihydropyrimidinase deficiency and congenital microvillous atrophy: coincidence or genetic relation?
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We describe a boy of consanguineous parents who suffered from intractable diarrhoea due to congenital microvillous atrophy, a recessively inherited autosomal disorder. He developed severe cholestatis starting at 2 weeks of age and leading to liver cirrhosis. His psychomotor development appeared only
[Relationship between tissue concentrations of 5-FU and degeneration of tissues after UFT administration in patients with bladder tumor].
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The relationship between the 5-FU concentration and tissue degeneration was studied in the bladder tumor tissue after UFT administration. In 12 patients with bladder tumor, UFT 400 mg/day was administered orally for about 2 weeks before TUR, and tegaful, 5-FU and uracil concentrations were examined
Impact of targeting the adenine- and uracil-rich element of bcl-2 mRNA with oligoribonucleotides on apoptosis, cell cycle, and neuronal differentiation in SHSY-5Y cells.
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We have identified previously a destabilizing adenine- and uracil-rich element (ARE) in the 3'-UTR of bcl-2 mRNA that interacted with ARE-binding proteins to down-regulate bcl-2 gene expression in response to apoptotic stimuli. We have also described three contiguous 2'-O-methyl oligoribonucleotides
Hematopoietic and gastric uracil-DNA glycosylase activity in megaloblastic anemia and in atrophic gastritis with special reference to pernicious anemia.
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The activity of the DNA excision repair enzyme uracil-DNA glycosylase was measured in peripheral blood mononuclear cells and in bone marrow aspiration samples obtained from patients with pernicious anemia (PA) or other types of megaloblastic anemia (one case of tapeworm anemia and three cases of
Regioselectivity of the OH Radical Addition to Uracil in Nucleic Acids. A Theoretical Approach Based on QM/MM Simulations.
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Oxidation of nucleic acids is ubiquitous in living beings under metabolic impairments and/or exposed to external agents such as radiation, pollutants, or drugs, playing a central role in the development of many diseases mediated by DNA/RNA degeneration. Great efforts have been devoted to unveil the
Discoid lupus erythematosus (DLE)-like lesion induced by uracil-tegafur (UFT).
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A mixture of uracil and tegafur (UFT) is a common antineoplastic agent in Japan. We report a 64-year-old Japanese woman with discoid lupus erythematosus (DLE)-like lesions which were induced by UFT. After surgery to treat lung cancer, UFT (300 mg/day) was administered and she developed round
A case of slowly progressive anti-Yo-associated paraneoplastic cerebellar degeneration successfully treated with antitumor and immunotherapy.
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We report a case of slowly progressive anti-Yo-associated paraneoplastic cerebellar degeneration (PCD) with breast cancer in a 54-year-old woman. The symptoms of limb and truncal ataxia, and dysarthria gradually progressed during the course of 1 year, and the modified Rankin scale (mRS) score was 2.
Folate deficiency induces neurodegeneration and brain dysfunction in mice lacking uracil DNA glycosylase.
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Folate deficiency and resultant increased homocysteine levels have been linked experimentally and epidemiologically with neurodegenerative conditions like stroke and dementia. Moreover, folate deficiency has been implicated in the pathogenesis of psychiatric disorders, most notably depression. We
Synthesis, structure and biological activity of a new and efficient Cd(II)-uracil derivative complex system for cleavage of DNA.
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The new complex formed by Cd(II) and the 1:2 Schiff-base-type ligand 2,6-bis[1-(4-amino-1,2,3,6-tetrahydro-1,3-dimethyl-2,6-dioxopyrimidin-5-yl)imino]ethylpyridine (DAPDAAU) has been chemically and structurally characterized by X-ray diffraction: the ion Cd(II) is surrounded by six nitrogen atoms
The carcinostatic effects of 1-(2-tetrahydrofuryl)-5-fluorouracil and uracil (UFT) on tongue carcinoma induced by 4-nitroquinoline 1-oxide (4NQO) in rats.
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UFT is a carcinostatic agent used in adjuvant chemotherapy for head and neck cancer. In the present study. UFT was given orally to treat tongue carcinoma in rats induced by 4-nitroquinoline 1-oxide. The antitumor effects of UFT were studied macroscopically and histologically. In addition, the
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