Background: Hyper-androgenemia is one of the main clinical features of polycystic ovarian syndrome (PCOS). Letrozol is an aromatase inhibitor drug, which is co-administered with gonadotropins in most cases of PCOS, to improve ovulation. Aromatase has a critical role in catalyzing the conversion of androgens to estrogens and is responsible for keeping the homeostatic balance between them. Hence ...

Objective (s): From a genetic point of view, epilepsy is a polygenic multifactorial syndrome. The SCN1A and B genes belong to a family of genes that provide instructions for making sodium channels. Understanding the relevance of SCN1A and SCN1B gene polymorphisms to plasma concentration of carbamazepine (CBZ) and its active metabolite carbamazepine 10, 11 epoxide (CBZE), may shed more light on ...

Background: Regulatory CD4+T (Treg) cells are effective in maintaining immune tolerance. Objective: To investigate single nucleotide polymorphisms (SNPs) of Transforming Growth Factor β-1 (TGF-β1) and Forkhead Box Protein 3 (FOXP3) genes in Iranian patients with allergic rhinitis (AR). Methods: Variations at codons 10 and 25 of TGF-β1 and FOXP3 at positions -3279 A>C and -924 A>G were evaluated...

Stearoyl-CoA desaturase (SCD) is a rate-limiting enzyme in the biosynthesis of monounsaturated fatty acids (MUFA). A number of studies support the hypothesis that SCD gene regulation and polymorphism may affect fatty acid composition and fat quality in meat and milk. Single nucleotide polymorphisms in the coding region of the bovine stearoyl-CoA desaturase gene have been predicted to result in ...

The use of polymorphic markers in breeding programmes could make selection more accurate and efficient. A total of 324 individuals from six Iranian cattle populations (Sarabi, Golpayegani, Sistani, Taleshi, Mazandarani, Dashtiyari), F1 Golpayegani × Brown Swiss and Iranian buffalo populations were genotypedfor the Pit-1 HinfI and leptin Sau3AI polymorphisms by the polymerase chain reactio...

Backgrounds and Aims: P53 gene is regarded important in pathogenesis of different cancers. Therefore, this study aimed to investigate the frequency of p53 gene codon 72 Arg/Pro polymorphism in women suffering from breast cancer. Materials and Methods: A total of 90 patients with breast cancer and 83 matched healthy control women participated in this case-control study. Genomic DNA was extrac...

objective (s): from a genetic point of view, epilepsy is a polygenic multifactorial syndrome. the scn1a and b genes belong to a family of genes that provide instructions for making sodium channels. understanding the relevance of scn1a and scn1b gene polymorphisms to plasma concentration of carbamazepine (cbz) and its active metabolite carbamazepine 10, 11 epoxide (cbze), may shed more light on ...