Yan Liu1, Xinlong Li1, Jing Kang2, Liyun He3, Baoyan Liu1. 1. Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China. 2. Beijing GULOU Hospital of Traditional Chinese Medicine, Beijing, China. 3. Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China. Electronic address: helyjournal@163.com.