Genetic association of AKAP10 gene polymorphism with reduced risk of preterm birth.

OBJECTIVE:Preterm birth (PTB) is a multifactorial complication in which genetic and environmental factors contribute to the phenotype. The AKAP10 protein encoded by AKAP10 gene has a vital role in the maintenance of myometrial quiescence and pregnancy. This study aimed to investigate whether polymorphisms in the AKAP10 gene are associated with the risk of PTB. STUDY DESIGN:A total of 664 women (132 preterm and 532 term) with spontaneous singleton deliveries were genotyped for AKAP10 polymorphisms (rs119672, rs203462 and rs169412) using Sequenom MassARRAY platform. RESULT:A significant association was observed between the CC and AC genotypes of AKAP10 rs169412 with reduced risk of PTB (CC: adjusted odds ratio (OR) 2.95, 95% confidence interval (CI): 1.23-7.09, P=0.016. AC: adjusted OR 3.46, 95% CI: 1.38-8.68, P=0.008), respectively. Following stratification by ethnicity, a significant association was observed between the AC and CC genotypes of rs169412 and term birth in the Malay ethnic subgroup. (CC: OR 2.9, 95% CI: 1.01-8.59, P=0.041. AC: OR 3.14, 95% CI: 1.04-9.54, P=0.043). A significant association was also observed between the CT genotypes of AKAP10 rs119672 with reduced risk of PTB deliveries (CT: OR 3.2, 95% CI: 1.06-9.76 P=0.007, TT: OR 2.8, 0.98-8.34, P =.0.015) Alternatively, there was no association between AKAP10 rs169412 and rs119672 polymorphisms with PTB in the Indians and Chinese ethnic groups. CONCLUSION:This study indicates a significant association between the AKAP10 polymorphisms and reduced risk of PTB in the Malays. This demonstrates the potential role of AKAP10 polymorphisms in preterm complications.

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