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  • Title: Association of Pro12Ala polymorphism in peroxisome proliferator-activated receptor gamma with polycystic ovary syndrome: a meta-analysis.
    Author: Tang ST, Wang CJ, Tang HQ, Peng WJ, Wang YM, Zhang Q.
    Journal: Mol Biol Rep; 2012 Oct; 39(10):9649-60. PubMed ID: 22729915.
    Abstract:
    The association between Pro12Ala polymorphism in peroxisome proliferator-activated receptor gamma (PPAR) and polycystic ovary syndrome (PCOS) has been investigated in several studies, whereas results were often incompatible. We conducted a meta-analysis to evaluate the association of Pro12Ala polymorphism in PPAR with PCOS susceptibility. A meta-analysis was performed on the published studies before November, 2011. Meta-analysis was performed for genotypes CG versus CC, CG+GG versus CC and G allele versus C allele in a fixed effect model. The combined odds ratio (OR) with 95 % confidence interval (95 % CI) was calculated to estimate the strength of the association. A total of 13 studies including 1,598 cases and 1,881 controls were enrolled. Ultimately, sensitivity analysis demonstrated that, in total, there was no significant association between Pro12Ala polymorphism and PCOS in the contrast of G allele versus C allele OR = 0.84 (95 % CI 0.69-1.04) and in Europeans, no significant association in the comparison of G allele versus C allele (OR = 0.84, 95 % CI 0.67-1.06) was also indicated. In summary, according to the results of our meta-analysis, strictly, the Pro12Ala polymorphism did not significantly associate with PCOS, though the protective trend of G allele existed.
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