Dr. Xu is a Professor in the Department of Laboratory Medicine at Nanjing Medical University. He received his Medical degree from Southeast University in 2002. He received his Ph.D. degree in Pediatrics at Nanjing Medical University in 2011. He later got postdoc position at University of Alabama at Birmingham. He is the author or coauthor of more than 50 peer-reviewed publications. His work has appeared in a number of high impact journals including NEJM, JAMA， Lancet ID, Lancet GH, Gastroenterology, Gut, Oncogene and Cell Death and Disease. His research interests focus on gastroenterology and hepatology, infectious diseases, innate immunity and gene expression and regulation.