1. Department of Endocrinology and Chemical Biology (J.C., J-L.L., J.Y., J.M.S., K.C.), New Jersey 07065
2. Huffington Center of Aging (R.G.S.) Houston, Texas 77030
3. Temple University (G.M.) School of Medicine Philadelphia, Pennsylvania 19140
4. Department of Medicinal Chemistry (T.F.W., R.J.D., M.T.G.), New Jersey 07065
5. Department of Molecular Systems (S.B.S.) Merck Research Laboratories Rahway, New Jersey 07065