[Xiong, Yan; Luo, Di-xian] Cent S Univ, Sch Pharmaceut, Dept Pharmacol, Changsha 410083, Hunan, Peoples R China.
[Liao, Duan-fang; Luo, Di-xian] Univ S China, Life Sci Res Ctr, Inst Pharm & Pharmacol, Hengyang 421001, Peoples R China.
[Luo, Di-xian; Peng, Xu-hong] First Peoples Hosp Chenzhou, Chenzhou 423000, Peoples R China.
[Cao, De-liang] So Illinois Univ, Sch Med, Dept Microbiol Immunol & Cell Biol, Springfield, IL 62702 USA.
[Liao, Duan-fang] Hunan Univ Chinese Med, Sch Pharm, Dept Tradit Chinese Diagnot, Sch Pharm, Changsha 420108, Hunan, Peoples R China.