Abstract

Background Tumor protein () is a tumor suppressor transcriptional regulator protein which plays a critical role in the spermatogenesis. One of the most important regulators of p53 is Murine double minute 2 (), which acts as a negative regulator of the p53 pathway. Based on the key role of p53 and in germ cell apoptosis, polymorphisms that cause a change in their function might affect germ cell apoptosis and the risk of male infertility. Objective This study was designed to examine associations of 72 Arg>Pro (rs1042522), and 309 T>G (rs937283) polymorphisms with spermatogenetic failure in Iranian population. Materials and Methods A case-control study was conducted with 150 nonobstructive azoospermia or severe oligozoospermia and 150 fertile controls. The two polymorphisms, 72 Arg>Pro in and 309 T>G in , were genotyped using PCR-RFLP and ARMS-PCR respectively. Results Our analyses revealed that the allele and genotype frequencies of the R72P polymorphism were not significantly different between the cases and controls (p=0.41, p=0.40 respectively). Also, no significant differences were found in the allelic (p=0.46) and genotypic (p=0.78) distribution of 309 T>G polymorphism between patients and controls. Conclusion The results of this study indicate that polymorphisms of and genes are unlikely to contribute to the pathogenesis of male infertility with spermatogenetic failure.