[1] Showa Pharmaceut Univ, 3-3165 Higashi Tamagawagakuen, Machida, Tokyo 1948543, Japan
[2] Showa Univ, Sch Pharm, Shinagawa Ku, 1-5-8 Hatanodai, Tokyo 1428555, Japan
[3] Hachinohe Natl Coll Technol, Fac Chem & Biol Engn, Lab Genotoxic, 16-1 Tamonoki Uwanotai, Hachinohe, Aomori 0391192, Japan
[4] Himeji Dokkyo Univ, Fac Pharmaceut Sci, 7-2-1 Kamiohno, Himeji, Hyogo 6708524, Japan
[5] Okayama Univ, Fac Med Dent & Pharmaceut Sci, Kita Ku, 1-1-1 Tsushima Naka, Okayama 7008530, Japan