1. Department of Gastroenterology, Beijing Lu He Hospital, Capital Medical University, Beijing 101149, P.R. China
2. Beijing Key Laboratory of Diabetes Research and Care Center for Endocrine Metabolism and Immune Diseases, Beijing Lu He Hospital, Capital Medical University, Beijing 101149, P.R. China
3. Department of Cell Biology and Municipal Laboratory of Liver Protection and Regulation of Regeneration, Capital Medical University, Beijing 100069, P.R. China