نتایج جستجو برای: promoter region
تعداد نتایج: 607598 فیلتر نتایج به سال:
objective: autism is a neurodevelopmental disorder characterized by difficulty in verbal and non-verbal communication, impaired social interaction, and restricted and repetitive behavior. it has been recently introduced as a multigenic disorder with significant epigenetic effects on its pathology. recently, epigenetic silencing of retinoic acid receptorrelated orphan receptor alpha (rorα) gene ...
Background: The molecular studies indicate some of the genes in the promoter region itself, will undergo methylation. Methylation of CpG islands in the promoter region of that cause silence or reduced expression of genes involved in cell growth pathways, which are colorectal cancer causing agents. Detection of methylation status can be used as a marker for cancer diagnosis and prediction of dis...
Several polymorphisms within the apo AI-CIII-AIV gene cluster have been detected there is ample evidence about variations at the adjucent apo AI and apo CIII gene loci influence the risk for hypertriglyceridemia and coronary artery disease(CAD). This study was conducted to elucidate the association between two restriction fragment length polymorphisms(RFLPs) of the adjacent apo AI and...
background the hepatitis b virus x (hbx) protein has long been recognized as an important transcriptional transactivator of several genes. human aldo-keto reductase family 1, member c1 (akr1c1), a member of the family of akr1cs, is significantly increased in hbx-expressed cells. objectives this study aimed to investigate the possible mechanism of hbx in regulating akr1c1 expression in hepg2.2.1...
Background and objectives: Endometrial tissue growth and its activity outside the uterus cause endometriosis. It has been suggested that various epigenetic deviations play a major role in the pathogenesis of endometriosis. Steroidogenic factor 1 (SF-1; NR5A1) is an essential transcription factor for estrogen biosynthesis in endometrial cells. The expression of SF-1 in endometriosis and lack of ...
results our study showed that there were no statistically significant differences in the allele and genotype frequencies of -1661 a/g snp between patients with sle and healthy controls (p > 0.05). conclusions in conclusion, we found no association between snp-1661 a/g of the ctla-4 promoter region and susceptibility to sle in our population. objectives to evaluate the potential influences of co...
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Background: Leptin is an adipokine made by fat cells and plays a key role in proliferation, cell survival, migration and immune response. Several studies have suggested that individuals with high serum leptin concentrations would increase the risk of breast cancer. G -2548A polymorphism in the leptin gene is located in the promoter region and is associated with the change of leptin serum level....
epidermal growth factor (egf) is an important factor for healing after tissue damage in diverse experimental models. it plays an important role in liver regeneration (lr). the objective of this experiment is to investigate the methylation variation of 10 cpg sites in the egf promoter region and their relevance to egf expression during rat liver regeneration. as a follow up of our previous study...
background: tumor necrosis factor-beta or lymphotoxin-alpha (lt- α ), il-4 and il-10 are determining factors in immunity against bcg. allelic polymorphisms in the regulatory regions of their genes affect the rate of cytokine production and therefore, the host’s ability in bcg containment. objective : to study the prevalence of –590 (c/t) and –592 (c/a) allelic distribution of il-4 and il-10 ...
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