1. From the Departments of Physiology (S.V.-K., D.T., I.G., R.T., S.G.) and Cell Biology and Biochemistry (S.C.W.), Texas Tech University Health Sciences Center, and Southwest Cancer Center at University Medical Center (S.C.W.), Lubbock, Tex; Dipartimento di Scienze Biomediche Sperimentali dell’Universita degli Studi di Padova (P.V., A.N.), Padova, Italy; and Department of Molecular Cardiology (S.G.P., C.N.), Fondazione Salvatore Maugeri, IRCCS, Pavia, Italy.