1. Shanxi Key Laboratory of Innovative Drugs for the Treatment of Serious Diseases Basing on Chronic Inflammation, College of Traditional Chinese Medicines, Shanxi University of Chinese Medicine, Taiyuan, Shanxi 030619, P. R. China
2. Graduate Institute of Pharmaceutical Chemistry, Luliang University, Luliang, Shanxi 033001, P. R. China
3. Department of Medical Biochemistry and Microbiology, Uppsala Biomedical Center, Uppsala University, Husargatan 3, Box 582, SE-751 23 Uppsala, Sweden