Application of sonchus brachyotus water extract in prevention and treatment of ulcerative colitis

The invention discloses an application of a sonchus brachyotus water extract in prevention and treatment of ulcerative colitis. The sonchus brachyotus water extract disclosed by the invention can be used for effectively treating and relieving the symptoms of the ulcerative colitis in the prevention and treatment of the ulcerative colitis, wherein the symptoms comprise weight change, colon shortening, DAI score, pathological injury and the like; 16SrRNA (Ribonucleic Acid) detection shows that the levels of the enteric microbiota treated by the sonchus brachyotus aqueous extract in phylum, outline, eye, family and genus are obviously improved, and the composition of the enteric microbiota among the groups is obviously different. Therefore, the sonchus brachyotus water extract can be used as an effective medicine for treating or preventing ulcerative colitis, and the protective effect of the sonchus brachyotus water extract on mouse colitis is possibly related to the diversity of intestinal microbiota. 本申请公开了一种苣