1. Department of Metabolic Medicine, Osaka University Graduate School of Medicine, Osaka 565-0871, Japan
2. Department of Diabetes Care Medicine, Osaka University Graduate School of Medicine, Osaka 565-0871, Japan
3. Department of Metabolism and Atherosclerosis, Osaka University Graduate School of Medicine, Osaka 565-0871, Japan
4. Diabetes Therapeutics and Research Center, Institute of Advance Medical Sciences, Tokushima University, Tokushima 770-8503, Japan
5. Osaka Center for Cancer and Cardiovascular Disease Prevention, Osaka 536-8588, Japan