نتایج جستجو برای: 5 رشیدرضا

تعداد نتایج: 1215799  

Journal: :Zeitschrift fur Naturforschung. Section C, Biosciences 1984
P Lassota R Stolarski D Shugar

Susceptibilities to snake venom 5'-nucleotidase (EC 3.1.3.5) have been evaluated for several 8-substituted analogues of 5'-GMP with varying populations of syn/anti conformations about the glycosidic bond. Improved syntheses of some of these are described, including direct chlorination of 5'-GMP to give 8-chloro-5'-GMP, a procedure which should be applicable to other purine nucleotides. The conf...

2016
Rui Wang Zhipu Luo Kaizhang He Michael O. Delaney Doris Chen Jia Sheng

5-Formylcytidine (f(5)C), a previously discovered natural nucleotide in the mitochondrial tRNA of many species including human, has been recently detected as the oxidative product of 5-methylcytidine (m(5)C) through 5-hydroxymethylcytidine (hm(5)C) in total RNA of mammalian cells. The discovery indicated that these cytosine derivatives in RNA might also play important epigenetic roles similar a...

2013
Amritraj Patra Joel Harp Pradeep S. Pallan Linlin Zhao Mikhail Abramov Piet Herdewijn Martin Egli

The thymine analog 5-chlorouridine, first reported in the 1950s as anti-tumor agent, is known as an effective mutagen, clastogen and toxicant as well as an effective inducer of sister-chromatid exchange. Recently, the first microorganism with a chemically different genome was reported; the selected Escherichia coli strain relies on the four building blocks 5-chloro-2'-deoxyuridine (ClU), A, C a...

Journal: :Restorative neurology and neuroscience 2012
Hu Chen Svetlana Dzitoyeva Hari Manev

PURPOSE Aging is believed to affect epigenetic marking of brain DNA with 5-methylcytosine (5mC) and possibly via the 5mC to 5-hydroxymethylcytosine (5hmC) conversion by TET (ten-eleven translocation) enzymes. We investigated the impact of aging on hippocampal DNA 5-hydroxymethylation including in the sequence of aging-susceptible 5-lipoxygenase (5-LOX) gene. METHODS Hippocampal samples were o...

2017
Liliya Vitanova Desislava Zhekova Petia Kupenova

Serotonin (5-HT) is one of the major monoamines in the brain. It is also found in the retina, a part of the brain, where a subgroup of amacrine cells are considered to be the sole retinal source of 5-HT. The data, obtained so far, about the serotonin receptors’ function are contradictory. Therefore, our aim was to study the distribution of the 5-HT synthesizing neurons and the serotonin recepto...

2011
Sreeparna Banerjee Seda Tuncay

Hugo: ALOX5 Other names: 5-LO; EC 1.13.11.34; leukotriene A4 synthase; 5LPG; LOG5 Location: 10q11.2 Local order: Genes flanking ALOX5, in centromere to telomere direction on 10q11, are: OR6D1P 10q11.21 olfactory receptor, family 6, subfamily D, member 1 pseudogene. LOC643413 10q11.21 hypothetical protein LOC643413. OR13A1 10q11.21 olfactory receptor, family 13, subfamily A, member 1. ALOX5 10q1...

2010

With fully conclusive findings about the toxicity of carbon nanotubes (CNTs) still up in the air, research on biomedical applications of CNTs is pushing full steam ahead. Adding to the list of potential concerns, a recent nanotoxicology study by a U.S.-Chinese research team looked into the impact of carbon nanotubes on male reproductive health. The translocation and biodistribution of nanoparti...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده شیمی 1392

هیدرازینیوم 5-آمینو تترازولات یکی از مواد منفجره مهم می باشد که از واکنش هیدرازین با 5-آمینوتترازول به وجود می آید. در این تحقیق، انرژی برهمکنش مولکول هیدرازین با هفت تاتومر مولکول 5- آمینوتترازول بر اساس روش های محاسباتی اختلالی وتابعی چگال محاسبه شده است. بدین منظور مولکول هیدرازین در 25 جهت گیری مختلف در اطراف تاتومرها قرار داده شده است. محاسبات به طور جداگانه در محیط های گازی وحلال شامل آب،...

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