Research Article - Biomedical Research (2018) Volume 29, Issue 1

Association of IL-18 polymorphisms with risk of polycystic ovary syndrome in a Han population of China

We aimed to investigate the association of two SNPs in the promoter region of IL-18 (IL-18-607C/A rs1946518 and -137G/C rs187238) with the risk of PCOS in a Chinese Han population. A total of 210 patients with PCOS and 408 subjects without PCOS were selected between June 2015 and December 2016. The genotyping of IL-18-607C/A rs1946518 and -137G/C rs187238 polymorphisms was carried out by an iPlex GOLD SNP genotyping analysis using the Sequenom MassARRAY® System. Unconditional multivariate logistic regression analysis was taken to calculate the relationship of IL-18-607C/A rs1946518 and -137G/C rs187238 polymorphisms with risk of PCOS. We found that BMI ≥ 24 (OR=2.78, 95% CI=1.85-4.17), ever smoking (OR=2.51, 95% CI=1.08-5.79) and ever drinking (OR=3.64, 95% CI=2.33-5.69) were associated with higher risk of PCOS. Those carrying the CC genotype were associated with 2.40 fold risk of developing PCOS (OR=2.40, 95% CI=1.22-4.72), and the GC+CC genotype displayed an increased risk of PCOS (OR=2.34, 95% CI=1.23-4.48). We suggest that IL-18-137G/C could be considered as a predictive factor for the pathogenesis of PCOS in the Han population of China.

Author(s): Qi Wang, Zongjian Tan, Hongyun Zhang, Rao Min, Zhang Cheng, Liu Wei

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