Abstract
Several polymorphisms have been identified in transcription factor 7-like 2 (TCF7L2), and calpain-10 (CAPN10) genes. Controversial conclusions for the genetic relationship between these polymorphisms and gestational diabetes mellitus (GDM) risks were obtained. Our study aims at assessing whether these polymorphisms are associated with GDM susceptibility via a meta-analysis. A total of 19 eligible case-control articles were obtained after databases searching. A significantly increased GDM risk was observed for TCF7L2 rs7903146 (all OR > 1, p < 0.01), but not rs12255372. In addition, significant difference was observed in case/control comparison for 112/112 (GG/2R2R/TT) haplotype combination frequency of CAPN10 SNP-43/19/63 (OR = 3.32, p = 0.043). In summary, TCF7L2 rs7903146 and 112/112 haplotype of CAPN10 might be associated with GDM risks.
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