1. Department of Pharmacy, Faculty of Pharmaceutical Sciences, Sanyo-Onoda City University, Sanyo-Onoda 756-0884, Yamaguchi, Japan
2. Department of Molecular Patho-Physiology, Faculty of Pharmaceutical Sciences, Tokyo University of Science, Noda 278-8510, Chiba, Japan
3. Department of Endocrinology and Metabolism, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Ibaraki, Japan
4. Department of Complex Biosystem Research, Institute of Natural Medicine, University of Toyama, Toyama 930-0194, Toyama, Japan