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Polymorphisms of the IL27 gene in a Chinese Han population complicated with pre-eclampsia
Bin Liu1, Yuan Li1,2, Yuan Yao1
1Department of Rheumatology, the Affiliated Hospital of Qingdao University, Qingdao, China.
Abstract:
IL-27 could inhibit the development of Th17 cells, and the Th17/regulatory T-cell imbalance may reverse maternal tolerance in pre-eclampsia (PE). The aim of this study was to investigate the association between genetic polymorphisms in IL27 with PE. Three SNPs in IL27 (rs153109, rs17855750, and rs181206) were genotyped in a Chinese Han cohort of 1040 PE patients and 1247 normal pregnant women using the TaqMan allelic discrimination real-time PCR method. The CC genotypic distribution of rs153109 was significantly higher among cases than controls (19.1% versus 13.3%, odds ratio [OR]: 1.54, 95% confidence interval [CI]: 1.23-1.93, p < 0.001), and the CT genotype was found to be significantly lower in cases than controls (41.7% versus 49.0%, OR: 0.74, 95% CI: 0.63-0.88, p < 0.001), disputing existing reports indicating the allele frequency of rs153109 is not significantly different between PE patients and controls. Additionally, the CC genotype of rs153109 was significantly more prevalent in PE cases than controls using a recessive model (p < 0.001). The allelic and genotypic frequencies of rs17855750 and rs181206 were not significantly different between two groups. Our results reveal that IL27 polymorphisms may be involved in the development of PE in Chinese Han population.
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