1. Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, P. R. China
2. Key Laboratory of Tibetan Medicine Research of Qinghai Province, 251 Ningda Road, Xining, Qinghai, P. R. China
3. University of Chinese Academy of Sciences, Beijing 100049, P. R. China
4. Center for Mitochondria and Healthy Aging, College of Life Sciences, Yantai University, Yantai 264005, P. R. China