Atractylodes macrocephala Koidz polysaccharide ameliorates DSS‐induced colitis in mice by regulating the gut microbiota and tryptophan metabolism

Ulcerative colitis (UC) is an idiopathic inflammatory bowel disease, and the range of current clinical treatments is not ideal. We previously found that polysaccharide of Atractylodes macrocephala Koidz (PAMK) is beneficial in DSS-induced colitis, and we aimed to investigate the underlying mechanisms in this study.