1. Department of Bioregulation, Nippon Medical School, Kawasaki, Kanagawa, Japan
2. Division of Endocrinology, Diabetology and Atherosclerosis Medicine, Department of Internal Medicine, Nippon Medical School Musashi-kosugi Hospital, Kawasaki, Kanagawa, Japan
3. Department of Molecular Pathology, Nippon Medical School, Kawasaki, Kanagawa, Japan