1. From the Departments of Pharmacology (J.Z., H.K.T., K.L., H.W., R.L., M.N.), Neurosurgery (T.M., I.D.), Pathology (T.Y.), and Human Morphology (A.O.), Okayama University Graduate School of Medicine, Dentistry, and Pharmacological Sciences, Okayama, Japan; and the Department of Pharmacy (S.M.), Shujitsu University, Okayama, Japan.