Background: The therapeutic effects of a number of natural products on Inflammatory
Bowel Disease (IBD) have recently been examined in detail. The whole herb and roots of Angelica
keiskei (Umblliferae) have traditionally been used as a diuretic, to treat gastrointestinal diseases such
as gastric ulcers and diarrhea in Japan.
Objectives: The present study was performed to investigate the effects of xanthoangelol, a major
chalcone of Angelica keiskei roots, on diarrhea and inflammation in the large intestine of IBD model
Methods: Xanthoangelol (10 & 25 mg/kg) was orally administered to mice with 3% Dextran Sulfate
Sodium (DSS)-induced colitis. Blood samples were collected during the experimental period, subjected
to a full blood count test, and colonic cytokine and chemokine levels were measured.
Results: Xanthoangelol (25 mg/kg) reduced the Disease Activity Index (DAI) of colitis. It also attenuated
DSS-induced reductions in red blood cell and platelet counts as well as Hb and Ht levels. A
histological examination of the colon using direct fast scarlet staining showed that xanthoangelol
prevented DSS-induced mucosal ulceration and eosinophil infiltration. Xanthoangelol also reduced
DSS-induced increases in colonic MCP-1, IL-1β, and TNF-α levels.
Conclusion: Xanthoangelol reduced DSS-induced increases in colonic IL-1β, TNF-α, and MCP-1
levels and prevented eosinophil infiltration, which supports its potential as a treatment for IBD.