1. From the Department of Cellular and Integrative Physiology (Y.-L.L., D.L., K.G.C., K.P.P., I.H.Z., H.D.S.), University of Nebraska Medical Center, Omaha; Division of Basic Biomedical Sciences (Y.-F.L.), University of South Dakota School of Medicine, Vermillion; and the Department of Cardiovascular Medicine (K.M.C.), University of Oxford, John Radcliffe Hospital, UK.