○Takashi Suzuki¹, Kei Mochizuki¹, Kazunori Morita¹, Yoshiro Suzuki¹, Masahiko Inase², Katsumi Nakajima¹ (1. Dept Physiol, Sch Med, Iwate Med Univ, Yahaba, Japan, 2. Dept Physiol, Facult Med, Kindai Univ, Osaka-Sayama, Japan)