GCK and gestational diabetes: <b>Conclusions</b>: The findings suggest that common variants in <i>IGF2BP2</i>, <i>CDKAL1</i>, <i>MTNR1B</i>, <i>TCF7L2</i>, <i>PPARG,</i> and <i>GCK</i> do not exert strong individual effects on GDM susceptibility in this cohort of ethnic Kazakh women.