○Hirosato Kanda^1,2, Koichi Noguchi², Yi Dai^2,3 (1. Sch of Pharm, Hyogo Med Univ, Hyogo, Japan, 2. Lab of Basic Pain Res, Hyogo Med Univ, Hyogo, Japan, 3. Dept of Anat and Neurosci, Hyogo Med Univ, Hyogo, Japan)