1. Department of Biochemistry, Faculty of Medicine (M.T., T.I., N.Nak., N.Nao., K.N.), Mie University, 2-174 Edobashi, Tsu, Mie 514-8507, Japan
2. Department of Animal Science Faculty of Bioresources (Y.H.), Mie University, 2-174 Edobashi, Tsu, Mie 514-8507, Japan