aim : the purpose of this study was to assess the incidence of 16bp insertion of intron 3 p53 in gastritis lesion and its correlation with clinicopathological aspects. background : p53 alterations have been implicated in the development of gastric malignancies. patients and methods : 97 gastritis and normal adjacent tissues were investigated for p53 gene analysis using pcr-sequencing of intron3...

background: the pathogenesis of many diseases is correlated to irregularity in vascular endothelial growth factor (vegf) expression. results from several association studies show that variation in the level of vegf expression is related to polymorphic sequences within the vegf gene. additionally, there are many studies showing that some gene polymorphisms significantly influence the pharmacokin...

abstract: background: rabies has been reported in all provinces and cities of iran, although there has been no molecular study regarding different groups and subgroups of rabies virus by phosphoprotein gene. in this study, firstly, 48 and then 85 recent rabies isolates recovered from cases reported throughout iran identified the evolutionary origins by molecular method of phosphoprotein gene re...

background: hypospadias is one of the most common congenital abnormalities in the male which is characterized by altered development of urethra, foreskin and ventral surface of the penis. androgen receptor gene plays a critical role in the development of the male genital system by mediating the androgens effects. objective: in present study, we looked for new variations in androgen receptor pro...

background and objectives: significant progress has been made in treatment of hemophilia. ex-vivo gene therapy is going popular due to the capability of this method in using isogenic cells for genetic manipulation and reintroducing them into same host after proliferation. most gene therapy techniques use viral vectors, which usually harbor a strong and non-specific promoter (e.g. cmv early prom...

background: the availability of testis specific genes will be of help in choosing the most promising biomarkers for the detection of testicular sperm retrieval in patients with non-obstructive azoospermia (noa). testis specific chromodomain protein y 1 (cdy1) is a histone acetyltransferase which concentrates in the round spermatid nucleus, where histone hyperacetylation occurs and causes the re...

Background: Chlamydia trachomatis(CT) is an obligate intracellular bacteria, requires living cells to replicate itself. CT infection can remain up to 4 years in the couple and affect their fertility. The relationship between CT and infertility is very important because most patients are asymptomatic and untreated. After infection with CT, NK activation signals begin through interactions of its ...

background: x-ray repair cross-complementing group 1 (xrcc1) gene is a dna repair gene and its non-synonymous single nucleotide polymorphisms (snp) may influence dna repair capacity which has been considered as a modifying risk factor for cancer development. methods: a case-control study was conducted to investigate impact of three frequently studied polymorphisms (arg194trp, arg280his and arg3...

single-gene disorders occur when mutation in a gene causing alteration of gene function while in multifactorial disorders, mutations occur in multiple genes, and these are usually coupled with environmental causes. in addition, in a multifactorial disorder such as diabetes, the complication is under the influence of different genes. for example, in diabetic retinopathy many genes are involved i...