نتایج جستجو برای: gene polymorphisms
تعداد نتایج: 1168765 فیلتر نتایج به سال:
Background: Telomeres play a dramatic role in sperm pronuclei formation and subsequently successful fertilization. The H2B family, member W, testis specific (H2BFWT) gene encodes a testis specific histone that colocalized with telomeric sequences and interfere in the dynamic rearrangement of telomeres at late stages of spermatogenesis. H2BFWT is essential for transmission of the telomeric chrom...
different research groups have extensively studied the associations of cytokine gene polymorphisms in different diseases. the role of cytokines gene polymorphisms in multiple sclerosis (ms), as a chronic immune-mediated neurodegenerative disease, has been previously reported in the various populations. for determining pro-inflammatory cytokine gene polymorphisms, 100 relapsing remitting multipl...
MicroRNAs are small non coding RNAs that are involved in gene expression regulation. Mir-122 was reported to inhibit hepatitis B virus (HBV), but little is known about the role of mir-122 polymorphisms on HBV infection development. This present study aimed to investigate the association between single nucleotide polymorphisms (SNPs) in mir-122 gene region with HBV infection. Study cases were HB...
Abstract Background: NOD2 gene located on chromosome 16 (IBD1) is known to have a strong association with Crohn’s disease. Three common polymorphisms of this gene including R702W, G908R, 1007fsinsC, were reported to be frequent in many western populations while rare occurrence of them was observed in eastern countries. The aim of this study was to assess the frequency of these polymorphisms ...
G-protein-coupled receptor (GPR54) is one of the known gene affecting fecundity. This gene affects the ovulation rate and litter size performance. A total of 160 animals including Sanjabi (n=100) and Ghezel (n=60) were used to identify polymorphisms of GPR54 gene and their influence on litter size. Genomic DNA was extracted by commercial DNA kit. The genotypic patterns were detected using th...
Background: Multiple sclerosis (MS) is a chronic inflammatory demyelinating disease of the central nervous system with presumed autoimmune origin. T cells are considered to play a pivotal role in orchestrating the self-reactive immune responses in multiple sclerosis (MS). This study was performed to investigate the role of polymorphisms of the programmed cell death 1 (PD-1) gene on susceptibili...
Backhground & Aim: Several lines of evidence have indicated that NO might be important in the pathogenesis of RA. NO could be synthesized by an enzyme called inducible nitric oxide synthase (iNOS). iNOS is expressed in the synovium, cartilage and lymphomononuclear cells of synovial fluid and lymphocytes and monocytes of peripheral blood of RA patients. Several studies have shown that iNOS gen...
Tuberculosis is a vagarious infectious disease that generally affects the lungs. Accordingly, in some cases, it can also affect the liver and kidney. Host genetic may affect tuberculosis caused by bacillus Mycobacterium tuberculosis. The main risk factors for the disease are a weakened immune system because of diabetes, some cancers, HIV/AIDS, severe kidney disease, cancer treatment, a...
molecular genetics selection on individual genes is a promising method to genetically improve economically important traits in livestock. the insulin like growth factor-i (igf-i) gene may play important roles in growth of multiple tissues, including muscle cells, cartilage and bone. the objectives of the present study were the estimate the haplotype frequencies of the igf-i gene polymorphisms i...
several asthma susceptibility loci, including a region containing the vitamin d receptor (vdr) gene located at chromosome 12q, have been identified using genome-wide screens. our aim is to investigate the association between single nucleotide polymorphisms (snps) in vdr gene and asthma. one hundred one asthma patients and 206 healthy controls were enrolled in this study. genotypes were determin...
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