1. From the Departments of Physiology and Biophysics (Z.Z.-G., E.K.-P., S.M., H.J.), Obstetrics and Gynecology (J.R.), and Cell Biology (Y.Y., W.-T.C.), Georgetown University Medical Center, Washington, DC; Cell Biology Section, National Institute of Dental Research, Bethesda, Md (H.K.K.); Cardeza Foundation for Hematological Research, Jefferson University, Philadelphia, Pa (W.R., D.S.G.); and Department of Hypertension, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (E.G.).