نتایج جستجو برای: methylation gstm1
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BACKGROUND Esophageal squamous cell carcinoma (ESCC) develops as a result of complex epigenetic, genetic and environmental interactions. Epigenetic changes like, promoter hypermethylation of multiple tumour suppressor genes are frequent events in cancer, and certain habit-related carcinogens are thought to be capable of inducing aberrant methylation. However, the effects of environmental carcin...
مقدمه: آسیب به dna ، نقش مهمی در بیماریهای مختلف بازی می کند . این آسیب در اثر مواد اکسیدانت و موتاژن ها رخ می دهد . گلوتاتیون- s ترانسفرازها اعضای یک خانواده چند ژنی هستند که به عنوان یک آنتی اکسیدانت مهم در سلولها ایفای نقش می کنند . پلی مورفیسم این آنزیم در بیماریهای مختلف ،مورد بحث و بررسی قرار گرفته است. در این مطالعه ،به بررسی پلی مورفیسم ژنوتیپ های gstm1,t1 در بیماران مبتلا به گلوکومای ا...
INTRODUCTION A deletion polymorphism in glutathione S-transferase Mu-1 (GSTM1-null) has previously been implicated to play a role in rheumatoid arthritis (RA) risk and progression, although no prior investigations have examined its associations with anticitrullinated protein antibody (ACPA) positivity. The purpose of this study was to examine the associations of GSTM1-null with ACPA positivity ...
This molecular epidemiologic case-control study of lung cancer incorporated three complementary biomarkers: the glutathione S-transferase M1 (GSTM1) null genotype, a potential marker of susceptibility, and polycyclic aromatic hydrocarbon-DNA adducts (PAH-DNA) and sister chromatid exchanges (SCE), both indicators of environmentally induced genetic damage. Associations between biomarkers and lung...
چکیده مقدمه: رتینوپاتی دیابتی عارضه شایع دیابت قندی است که رگهای شبکیه چشم را درگیر میکند. افزایش قند خارج سلولی در دیابت، محرک تولید گونههای واکنشپذیر اکسیژن (ros) و افزایش استرس اکسیداتیو است. گلوتاتیون s– ترانسفرازها (gst)، آنزیمهایی هستند که موجب محافظت انسان در برابر آسیبهای حاصل از ترکیبهای اکسیژنی واکنشپذیر میشوند. در انسان، ژن (gstm1) پلی مورفیک بوده و حذف این ژن موجب تولید نشدن این آنز...
The double null mutation of glutathione transferase, GSTM1 and GSTT1, is reported to influence troglitazone-associated abnormal increases of alanine aminotransferase and aspartate aminotransferase. However, no nonclinical data with a bearing on the clinical outcomes and underlying mechanisms have hitherto been reported. To investigate whether deficiency in GSTM1 and/or GSTT1 is related to trogl...
Glutathione S-transferase1, GSTM1, belongs to a superfamily of glutathione S-transferases that metabolizes a broad range of reactive oxygen species and xenobiotics. Across species, genetic variants that result in decreased expression of the Gstm1 gene are associated with increased susceptibility for vascular diseases, including atherosclerosis in humans. We previously identified Gstm1 as a posi...
PURPOSE The glutathione S-transferases (GSTs) catalyze the glutathione conjugation of reactive electrophiles, including carcinogens and many antineoplastic drugs. GSTT1 and GSTM1 are polymorphically deleted, but the full range of genetic variation in these two genes has not yet been explored. We set out to systematically identify common polymorphisms in GSTT1 and GSTM1, followed by functional g...
This article has not been copyedited and formatted. The final version may differ from this version. This article has not been copyedited and formatted. The final version may differ from this version. Abstract The double null mutation of glutathione S-transferase, GSTM1 and GSTT1 is reported to influence troglitazone-associated abnormal increases of ALT/AST. However, no non-clinical data have hi...
OBJECTIVE Glutathione-S-transferases (GSTs) play an important role in tobacco smoke detoxification, interestingly approximately 50% of individuals in most human populations lack the gene GSTM1 due to copy number variation (CNV). We aimed to investigate GSTM1 CNV in Rheumatoid Arthritis (RA) in relation to smoking and HLA-DRB1 shared epitope; the two best known risk factors for RA and in additio...
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