SNPs in ERCC1, ERCC2, and XRCC1 genes of the DNA repair pathway and risk of male infertility in the Asian populations: association study, meta-analysis, and trial sequential analysis.

ABSTRACT: PURPOSE:We investigated if substitutions in the ERCC1, ERCC2, and XRCC1 genes of the DNA repair pathway correlate with non-obstructive azoospermia and male infertility. METHODS:A total of 548 azoospermic infertile males and 410 fertile controls were genotyped for XRCC1 399A?>?G, 280G?>?A, and ERCC1 C?>?A 3' UTR and 541 azoospermic infertile males and 416 fertile controls were genotyped for ERCC2 751A?>?C using iPLEX Gold Assay. Meta-analyses were performed on XRCC1 399A?>?G (1022 cases and 1004 controls), ERCC1 C?>?A 3' UTR (879 cases and 1059 controls), and ERCC2 751A?>?C (914 cases and 850 controls) polymorphisms to quantitatively estimate the significance of the association between these polymorphisms and the risk of infertility. RESULTS:Statistically significant association between ERCC2 751A?>?C SNP and male infertility was found using the codominant model (p =?0.03). Results of meta-analysis suggested a lack of correlation with male infertility risk, which could be due to pooling of studies from different ethnic populations. Due to limited the number of studies, a stratified analysis for different ethnic groups could not be performed. CONCLUSION (S):In conclusion, AA genotype of 751A?>?C SNP in ERCC2 correlated with a higher risk of male infertility and may contribute to an increased risk of azoospermia and male infertility in Indian men.

SUBMITTER: Singh V 

PROVIDER: S-EPMC6338593 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature