1. School of Pharmaceutical Sciences, Peking University Health Science Center, No. 38 Xueyuan Road, Beijing 100083, People's Republic of China, School of Life Sciences, Northeast Normal University, No. 5268 Renmin Street, Changchun 130024, People's Republic of China, and School of Pharmaceutical Sciences, Shanxi College of Traditional Chinese Medicine, Shiji Road, Xianyang 712046, People's Republic of China