Abstract
Gestational Diabetes Mellitus (GDM) shares in part the pathogenic mechanisms of multiple genetic interactions. Some of the T2D susceptibility genes are encountered in association with GDM. We aimed to investigate GST T1, M1, and G972R IRS-I gene polymorphisms with the risk of developing GDM. In this randomized case-control study, pregnant women with GDM were genotyped by PCR analysis for glutathione s-transferase-T1, M1 variant polymorphisms. RFLP was done for the G972R IRS 1 gene. Their newborns were additionally assayed for the whole of the clinical, laboratory, and genetic aspects. The T allele IRS-1rs1801278 TT genotype was more frequently detected in GDM mothers in comparison to healthy control ones [for TT homozygous variant; OR(CI 95%): 2.05(1.09-3.87, p: 0.025)]. Furthermore, GST T1 null was significantly presented in GDM mothers than those of control mothers [OR (CI95%: 0.29 (0.084-1.02), p:0.04]. Added to the significant correlation of glycemic indices to clinical parameters of infants born to GDM, the M1-null genotype of GST was significantly correlated (p<0.05) to abnormal values of respiratory rates and 1 minute-APGAR score noted for extra NICU care. Our results suggested that GST T1null and IRS-1 TT genotypic variants were claimed for GDM development among Egyptian women with a possible impact on their newly born infants.
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