Association of luteinizing hormone/choriogonadotropin receptor gene polymorphisms with polycystic ovary syndrome risk: a meta-analysis

To investigate the association between Luteinizing hormone/choriogonadotropin receptor (LHCGR) gene polymorphisms and polycystic ovary syndrome (PCOS). A systematic literature search and meta-analysis using STATA software for included studies. Fourteen case-control studies containing rs13405728, rs4539842, and rs2293275 of LHCGR gene were included, which was comprised of 11,738 PCOS cases and 35,329 controls. Results of the meta-analysis showed a significant association between PCOS and rs13405728 (for G vs. A: OR = 0.735, 95% CI = 0.699–0.773, <i>p</i>&lt;.001; For GG vs. AG + AA: OR = 0.578, 95% CI = 0.436–0.767, <i>p</i>&lt;.001; For GG + AG vs. AA: OR = 0.817, 95% CI = 0.741–0.901, <i>p</i>&lt;.001) in Asian populations, and rs4539842 (for ins/ins <i>vs</i>. ins/non + non/non: OR = 0.686, 95% CI = 0.483–0.974, <i>p</i>=.035) and rs2293275 (for AA vs. AG + GG: OR = 4.115, 95% CI = 1.033–16.38, <i>p</i>=.045) in Caucasian populations, respectively. LHCGR gene variations are population specifically associated with PCOS, which indicated these SNPs in LHCGR may contribute to the pathogenesis of PCOS and could be used as potential biomarkers to predict the risk of PCOS.