[Zhang, Man; Mei, Zhinan; Ju, Yankun; Xiong, Hui; Luo, Miao; Ren, Yongshen; Yang, Guangzhong] South Cent Univ Nationalities, Sch Pharmaceut Sci, 182 Minyuan Rd, Wuhan 430074, Peoples R China.
[Zhao, Zhongqiu] Washington Univ, Sch Med, Dept Anesthesiol, Ctr Study Itch, St Louis, MO 63110 USA.
[Zhao, Zhongqiu] Barnes Jewish Hosp, St Louis, MO 63110 USA.
[Xu, Ran] Wuhan Polytech Univ, Coll Biol & Pharmaceut Engn, Wuhan 430023, Peoples R China.