Background Single nucleotide polymorphism (SNPs) are considered as one of the underlying causes of male infertility. Proper sperm chromatin packaging which involves replacement of histones with protamines has profound effect on male fertility. Over 20 SNPs have been reported for the protamine 1 and 2. MaterialsAndMethods The aim of this study was to evaluate the frequency of two previously repo...

hepatitis c virus is one of the main reasons for chronic liver disease and hepatocellular carcinoma. combination therapy with interferon (peg-ifn-α) and ribavirin (rbv) clear the virus more likely than the others. different factors like virus and host characteristics influence on response to treatment. the most important viral factors include virus genotype and viral load; host factors like gen...

background: normal tissue toxicity continues to remain as a major challenge for radiation oncologists for delivering the total dose to the tumour cells in cancer patients. cellular, molecular and plasma based early biomarkers to predict the overreactions and non-overreactions of normal tissue toxicity before the initiation of radiotherapy can be valuable for personalised treatment. the aim of t...

coronary artery disease (cad) including myocardial infarction (mi) as its complication, is one of the most common heart diseases worldwide and also in iran, with extremely elevated mortality. cad is a multifactorial disorder. twin and family studies at different loci have demonstrated that genetic factors have an important role in the progression of cad. many studies have reported a significant...

background: several methods have been developed for detection of sequence variation in genes and each has its advantages and disadvantages. a disadvantage of them is that the simpler, cost-effective methods are commonly perceived as being less sensitive in their detection of sequence variation, whereas those with proven sensitivity have a requirement for complex or expensive laboratory equipmen...

background: bcl-2 is the most important anti-apoptotic regulator and bax is a pro-apoptotic protein. the status of these parameters or the ration of bcl-2 to bax is important in malignant cell fate as well as normal cells. methods: sixty-two all patients and 62 healthy sex-and age-matched controls were studied. after genotyping, the promoter region of the bax and bcl-2 genes by rflp-pcr method ...

background chronic hepatitis b virus (hbv) infection is a multifactorial disease that can result in serious clinical complications. host genetic background especially the genes that encode immunologic factors like inf-γ and its receptor (ifn-γ r) are critical in the pathogenesis of infection. materials and methods genomic dna from peripheral blood samples of 200 chronically hbv infected patient...

objective(s): this study aims to investigate joint association between cholesterol ester transfer protein (cetp) polymorphisms and body mass index (bmi) or birth weight with the risk of dyslipidemia in iranian children and adolescents. materials and methods:this study was conducted as a sub-study of the “school-based nationwide health survey” (caspian-iii). we randomly selected 750 samples from...