نتایج جستجو برای: pteridine reductase 1

تعداد نتایج: 2784388  

Journal: :Diabetes 2004
Kota V Ramana Brian Friedrich Sanjay Srivastava Aruni Bhatnagar Satish K Srivastava

Activation of the polyol pathway has been linked to the development of secondary diabetic complications. However, the underlying molecular mechanisms remain unclear. To probe the contribution of this pathway, we examined whether inhibition of aldose reductase, which catalyzes the first step of the pathway, affects hyperglycemia-induced activation of the inflammatory transcription factor nuclear...

2016
Yuantong Tian Lijing Zhao Ye Wang Haitao Zhang Duo Xu Xuejian Zhao Yi Li Jing Li

Aldo-keto reductase family 1 member C3 has recently been regarded as a potential therapeutic target in castrate-resistant prostate cancer. Herein, we investigated whether berberine delayed the progression of castrate-resistant prostate cancer by reducing androgen synthesis through the inhibition of Aldo-keto reductase family 1 member C3. Cell viability and cellular testosterone content were mea...

2017
Justin R. Prigge Lucia Coppo Sebastin S. Martin Fernando Ogata Colin G. Miller Michael D. Bruschwein David J. Orlicky Colin T. Shearn Jean A. Kundert Julia Lytchier Alix E. Herr Åse Mattsson Matthew P. Taylor Tomas N. Gustafsson Elias S.J. Arnér Arne Holmgren Edward E. Schmidt

Energetic nutrients are oxidized to sustain high intracellular NADPH/NADP+ ratios. NADPH-dependent reduction of thioredoxin-1 (Trx1) disulfide and glutathione disulfide by thioredoxin reductase-1 (TrxR1) and glutathione reductase (Gsr), respectively, fuels antioxidant systems and deoxyribonucleotide synthesis. Mouse livers lacking both TrxR1 and Gsr sustain these essential activities using an N...

Journal: :acta medica iranica 0
m. t. goodarzi f. zal m. malakooti m. r. safari s. sadeghian

aldose reductase is a critical enzyme in the polyol pathway that plays an important role in diabetes mellitus. inhibition of the activity of this enzyme can prevent cataract in diabetic patients’lenses. in this study the inhibitory effect of two flavonoids, quercetin and naringin, in the activity of aldose reductase in streptozotocin-induced diabetic and healthy rats were investigated. thirty m...

Journal: :Analytical and bioanalytical chemistry 2009
Kazutaka Hirakawa

A method for the fluorometry of singlet oxygen ((1)O(2)) using less fluorescent folic acid and its analogue, methotrexate (MTX), was examined. Folic acid and MTX were decomposed into a strongly fluorescent pteridine compound via a photosensitized reaction by (1)O(2)-generating photosensitizers in a deuterium oxide solution. The fluorescence intensity increased in proportion to the irradiation t...

Journal: :Journal of Biological Chemistry 2001

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2007
Dean DellaPenna

H umans require a minimum daily intake of essential micronutrients, vitamins, and minerals to maintain optimal health. Micronutrient malnutrition, the dietary insufficiency of one or more micronutrients, has far-reaching negative health consequences at all stages of life and was a pervasive health issue for all countries at the turn of the 20th century. Micronutrient malnutrition has been signi...

Journal: :research in molecular medicine 0
mahboobeh nasiri department of natural sciences, arsanjan branch, islamic azad university, arsanjan, iran. ali roostaei department of microbiology, science and research branch, islamic azad university, fars, iran zeinab ehsanian department of microbiology, science and research branch, islamic azad university, fars, iran

background: the association between methylene tetrahydrofolate reductase polymorphism and coronary artery diseases risk has been both confirmed and refuted in a number of published studies. the aim of this study was to investigate whether genetic polymorphisms of mthfr (c677t, a1298c) contributed to the development of myocardial infarction (mi). materials and methods: the present case-control s...

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