Association Between Polymorphisms of the CYP11A1 Gene and Polycystic Ovary Syndrome in Chinese Women

Overview

Journal Mol Biol Rep

Specialty Molecular Biology

Date 2012 Jun 16

PMID 22699877

Citations 19

Authors

Cheng-Wei Zhang

Xin-Lin Zhang

Yan-Jie Xia

Yun-Xia Cao

Wen-Jun Wang

Pei Xu

Ye-na Che

Xiao-Ke Wu

Long Yi

Qian Gao

Yong Wang

Affiliations

Soon will be listed here.

Abstract

The cholesterol side chain cleavage enzyme (CYP11A1) gene plays an important part in the synthesis of sex hormones and has been reported to be involved in the pathogenesis of polycystic ovary syndrome. A case-control study including 314 PCOS patients and 314 controls was conducted to assess the association of the SNPs rs4077582 and rs11632698 in CYP11A1 with PCOS using the polymerase chain reaction-restriction fragment length polymorphism method. Thereafter, 100 DNA samples were re-genotyped by direct sequencing for confirmation. The genotypic distribution of rs4077582 in women with PCOS differed from that in controls (P = 0.002). No such distributional difference was found in rs11632698 (P = 0.912). Data from our previous study of these two SNPs in another population including 290 PCOS patients and 344 controls was combined with the current data. Combined analysis (a total of 1262 participants, including 604 PCOS patients and 658 control women) showed a much more significant difference in the genotypic distribution of rs4077582 between PCOS and controls (P < 0.001). The T allele was more prevalent in PCOS patients (Odds ratio = 1.314; 95 % CI 1.122-1.540). The testosterone levels among the three genotypes for rs4077582 were different in the control group, as were the LH levels and the LH/FSH ratio. Therefore, SNP rs4077582 in CYP11A1 is strongly associated with susceptibility to PCOS and may alter the testosterone levels by the regulation of LH in different genotypes. No association was observed in rs11632698.

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