1. Division of Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 1-1-1, Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
2. AIBIOS K.K., Tri-Seven Roppongi 8F, 7-7-7 Roppongi, Minato-ku, Tokyo 106-0032, Japan
3. Graduate School of Integrated Pharmaceutical and Nutritional Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan