She is an elected fellow of American Gastroenterological Associate. Her key achievements include 1) characterization of vitamin D receptor regulation of microbiome in intestinal homeostasis and inflammation, 2) identification of dysbiosis and intestinal dysfunction in Amyotrophic lateral sclerosis (ALS), and 3) identification of bacteria in regulating intestinal stem cells. Dr. Sun has published over 120 scientific articles in peer-reviewed journals, including Cell Stem Cells, Nature Genetics, Gut, and JBC. She is in the editorial board of 10 scientific journals. Her research is supported by the NIH, DOD, and other awards.