Abstract
We wanted to determine whether genetic polymorphisms of aryl hydrocarbon receptor (AhR) gene are associated with susceptibility to male infertility. This study comprised 176 men with idiopathic infertility and 352 healthy fertile men who served as controls. Seven single-nucleotide polymorphisms (SNPs) of the AhR gene (rs2066853, rs1476080, rs10250822, rs10247158, rs2282885, rs6960165, and rs7811989) were selected and genotyped by the polymerase chain reaction–restriction fragment length polymorphism analysis. The serum levels of reproductive and thyroid hormones and inhibin B were also measured. After multiple regression analysis, 2 of the 7 studied SNPs were significantly associated with the occurrence of male infertility. Men with rs2066853 AA genotype had 33% decreased risk of being infertile (odds ratio [OR] = 0.67, 95% confidence interval [CI]: 0.46-0.87;
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