1. From the Department of Pharmacology (Y.-J.L., X.-G.W., Y.-B.T., J.-H.C., X.-F.L., J.-G.Z., Y.-Y.G.), Cardiac and Cerebral Vascular Research Center (Y.-J.L., X.-G.W., Y.-B.T., X.-F.L., J.-G.Z., Y.-Y.G.), Zhongshan School of Medcine, Sun Yat-Sen University, Guangzhou, People’s Republic of China; Department of Anaesthesia (J.-H.C.), Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, People’s Republic of China.