1. Department of Medicine (J.X., D.S., J.J., L.D., Y.Z., D.B., S.J.F.),University of Alabama at Birmingham, Birmingham, Alabama 35294
2. Division of Endocrinology, Diabetes, and Metabolism, and Department of Cell, Developmental, and Integrative Biology (H.Y., S.J.F.), University of Alabama at Birmingham, Birmingham, Alabama 35294
3. Department of Biological Sciences (J.F.L., W.Y.C.), Clemson University, Clemson, South Carolina 29634;
4. Department of Animal Biology and Mari Lowe Center for Comparative Oncology (S.Y.F.), University of Pennsylvania, Philadelphia, Pennsylvania 19104;
5. Endocrinology Section (S.J.F.), Medical Service, Veterans Affairs Medical Center, Birmingham, Alabama 35233