GRK5 and diabetes mellitus: The findings in the present study for other genes are consistent with previous studies for RASGRP1 and GRK5 in Chinese,10ZFAND3 in East Asians,12MTNR1B in Europeans, Koreans, and Chinese,53, 54, 55 and ANK1 in Chinese.56 In this study, we observed a significant association of rs2028299 near AP3S2 with diabetes and FPG.