1. School of Agriculture, Tokai University, 5435 Minamiaso, Aso, Kumamoto 869-1404, Japan, Faculty of Pharmacy, Takasaki University of Health and Welfare, 60 Nakaorui, Takasaki, Gunma 370-0033, Japan, Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan, Faculty of Medical and Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Kumamoto 862-0973, Japan, and Faculty of Pharmaceutical Sciences, Setsunan University; 45-1 Nagaotoge-cho, Hirakata, Osaka 573-0101,...