KCNQ1 and gestational diabetes: However, in ethe present study, the rs7903146 SNP was commonly studied and found to be associated, whereas rs228228 and rs5210 were found to be associated with the KCNQ1 and KCNJ11 genes in a study by Khan et al., in which we chose different SNPs (rs2238792 and rs5219) in Saudi women with GDM.