1. Department of Biochemistry, Asahikawa Medical University, Asahikawa 078-8510, Japan
2. Department of Pharmacology, Asahikawa Medical University, Asahikawa 078-8510, Japan
3. Department of Biochemistry, Faculty of Medical Sciences, University of Fukui, Fukui 910-1193, Japan
4. Department of Pharmacy, University of Rajshahi, Rajshahi, Bangladesh
5. National Research Institute for Child Health and Development, Tokyo 157-8535, Japan