1. Departments of Surgery, Internal Medicine-Nephrology and Physiology-Pharmacology, Wake Forest University Health Science Center, Winston-Salem, North Carolina;
2. Hypertension and Vascular Research Center, Wake Forest University Health Science Center, Winston-Salem, North Carolina;
3. Section on Cardiovascular Medicine, Department of Internal Medicine, Wake Forest University Health Science Center, Winston-Salem, North Carolina;
4. Department of Anesthesiology, Wake Forest University Health Science Center, Winston-Salem, North Carolina;
5. Departments of Cell Biology, Microbiology, Physiology, University of Alabama Birmingham, Alabama; and
6. Division of Cardiovascular Disease, University of Alabama at Birmingham and Department of Veterans Affairs, Birmingham Veterans Affairs Medical Center, Birmingham, Alabama