From the Department of Internal Medicine, Medical Pharmacology & Physiology and Nutritional Sciences (H.Z., J.Z., C.Z.), Dalton Cardiovascular Research Center, University of Missouri, Columbia; the Department of Physiology (Z.U.), New York Medical College, Valhalla; and the Reynolds Oklahoma Center on Aging, Department of Geriatric Medicine (Z.U.), University of Oklahoma Health Science Center, Oklahoma City. (At 2009-08)
