Division of Rehabilitation, Inoue Hospital, Enoki-cho Suita, Osaka 564-0053, Japan. Department of Vascular Medicine, Osaka City University Graduate School of Medicine, 1-4-3, Asahi-machi, Abeno-ku, Osaka 545-8585, Japan. Vascular Science Center for Translational Research, Osaka City University Graduate School of Medicine, Asahi-machi, Abeno-ku, Osaka 545-8585, Japan. Division of Internal Medicine, Inoue Hospital, Enoki-cho Suita, Osaka 564-0053, Japan. Department of Metabolism, Endocrinology and Molecular Medicine, Osaka City University Graduate School of Medicine, Asahi-machi, Abeno-ku, Osaka 545-8585, Japan. Department of Nephrology, Osaka City University Graduate School of Medicine, Asahi-machi, Abeno-ku, Osaka 545-8585, Japan.