湖南省“中药学”重点学科建设项目资助湘教通[2011]76号;湖南省教育厅资助科研项目13C670;湖南中医药大学青年科研基金项目99820001-93.This work was supported by grants from the Construct Program of the Key Discipline of Chinese Pharmacy in Hunan Province [2011]76,Scientific Research Fund of Hunan Provincial Education Department13C670,and the Youth Research Fund of Hunan University of Chinese Medicine 99820001-93.