1. From the Departments of Cell Biology (N.V., M.B., S.U., X.Z., S.L.H., M.S.P.) and Cardiovascular Medicine (T.W., E.J.T., S.L.H., M.S.P.) and Center for Cardiovascular Diagnostics and Prevention (M.B., S.L.H.), Cleveland Clinic Foundation, Cleveland, Ohio; Free Radical and Radiation Biology Program, Department of Radiation Oncology, University of Iowa, Iowa City (D.R.S.); and Department of Medicine, University of Washington, Seattle (J.W.H.).