Background: Cytokines are cell signaling molecules which upon release by cells facilitate the recruitment of immune-modulatory cells towards the sites of inflammation. Genetic variations in cytokine genes are shown to regulate their production and affect the risk of infectious as well as autoimmune diseases. Intron-3 of interleukin-4 gene (IL-4) harbors 70-bp variable number of tandem repeats (...

interferon gamma (ifn-g) is a cytokine produced by activated t lymphocytes and natural killer cells. it plays an important role in innate and adaptive immunity. ifn-g gene is polymorphic and its haplotype has been associated with resistance to nematode infestations which are the most important parasites of domestic sheep worldwide. to evaluate ifn-g polymorphism in iranian shaul sheep populatio...

DNA polymorphism within diacylglycerol transferase 2 (DGAT2) / monoacyl glycerol transferases 2 (MOGAT2), leptin and butyrophilin genes were analysed using PCR-SSCP in Murrah buffalo. The single strand conformation polymorphism (SSCP) analysis of amplified gene fragment in exon 5 of MOGAT2, exon 3 of leptin and intron 1 of butyrophilin gene revealed different patterns. A, B and C showed the fol...

interferon- gamma (ifn- γ) is an important immune regulator and inflammatory cytokine which is implicated in the pathogenesis of multiple sclerosis (ms). a single nucleotide polymorphism, t to a, at position +874 in the first intron has previously been shown. this polymorphism is associated with ifn- γ production level. to study the effect of this polymorphism on susceptibility to multiple scle...

Background: Human cornea expresses functional Fas-ligand capable of killing Fas+ activated lymphocytes. Fas expression is partly regulated by -670 A/G polymorphism in the promoter region of Fas gene. Objective: The aim of the present study is to determine the association between Fas-670A/G polymorphism and survival of corneal transplantation. Methods: In 276 graft recipients who mainly underwen...

Leptin receptor (OBR) is a member of the class I cytokine receptor family. It signals mainly via the JAK/STAT pathway and plays an important role in regulating body energy storage and metabolism. This study was designed to investigate the effects of the OBR gene on chicken growth and body composition. Broiler lines selected divergently for or against abdominal fat were used. Primers for the exo...

Background and objectives: Gastric cancer is one of the most common cancers of the gastrointestinal tract in the world, which also has a high prevalence in Iran. ERCC2 gene is considered one of the major genes related to gastric cancer. The present study aimed to investigate the relationship between rs13181 polymorphism of ERCC2 gene. The polymorphism in the promoter region of ERCC2 gene can af...

Objective Matrix Metalloproteinase (MMPs) play important roles in the structural and functional properties of reproductive organs. The aim of this study is to determine the prevalence of C-1562T Matrix Metalloproteinase-9 (rs3918242) gene polymorphism in fertile and infertile men. In addition, we aimed to determine the association between C-1562T MMP-9 and G-1575A MMP-2 gene polymorphisms. Mate...

thirtyfrieswal lactating cows were screened for clinical and subclinical mastitis and subsequently classified into healthy, subclinically affected and clinically affected groups each group comprising of 10 cows. polymorphism of cow lactoferrin (ltf) gene promoter was determined by polymerase chain reaction-restriction fragment length polymorphism (pcr-rflp). the results showed that lft gene pro...