Dr. Chai received his Ph.D. from the City University of New York in 1998 and completed his postdoctoral training at Harvard University in 2001. Then he served in the United States Department of Veterans Affairs as a Principal Investigator (2002-2016), in affiliation with the School of Medicine, University of California in Irvine. Currently, he is a professor at Baotou Medical College, Inner Mongolia University of Science and Technology. He has published dozens of research articles on various subjects including zoology, cardiovascular biology, gastroenterology, and cancer biology. In addition, he holds memberships with AGA, AHA, ASBMB and other professional organizations. Dr. Chai has also served in the editorial board of multiple journals and has been a solicited reviewer for national and international funding agencies.