The rs7903146 variant in the tcf7l2 gene increases the risk of prediabetes/type 2 diabetes in obese adolescents by impairing b-cell function and hepatic insulin sensitivity
OBJECTIVE In this study, we aimed to explore the mechanism by which TCF7L2 rs7903146 risk allele confers susceptibility to impaired glucose tolerance (IGT) or type 2 diabetes (T2D) in obese adolescents. RESEARCH DESIGN AND METHODS The rs7903146 variant in the TCF7L2 gene was genotyped in a multiethnic cohort of 955 youths. All subjects underwent an oral glucose tolerance test with the use of the O