1. From the Departments of Cardiovascular Biology (J.A., M.N., Y.T.), Surgery (J.D., M.M.), Internal Medicine (M.O., K.K.), and Physiology (N.T.), Faculty of Medicine, University of Tokyo, and the Department of Pathology, National Cancer Center East Hospital, Kashiwa, and Department of Laboratory Medicine (T.M.), Mitsui Memorial Hospital, Tokyo, Japan.