1. Department of Orthopedic Surgery, Hirosaki University Graduate School of Medicine, Hirosaki, Japan.
2. Department of Neurophysiology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan.
3. Department of Anesthesiology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan.
4. Department of Pharmacology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan.
5. Laboratory of Molecular and Cellular Biochemistry, Faculty of Dental Science, Kyushu University, Fukuoka, Japan.
6. Department of Cellular and Molecular Pharmacology, Institute of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.