1. From the Obesity and Diabetes Clinical Research Section, NIDDK/NIH/DHHS, Phoenix, AZ (JK, NS, CW, CB, JK, and JCB); Carl T Hayden Veterans Affairs Medical Center, Phoenix, AZ (PAP); the Department of Internal Medicine and Molecular Science, Graduate School of Medicine, Osaka University, Osaka, Japan (MS and TF); Pennington Biomedical Research Center, Baton Rouge, LA (SRS); and the Department of K