Colonic administration of baitouweng decoction alleviates ulcerative colitis via coordinated reprogramming of arginine and tryptophan metabolism.
BACKGROUND Ulcerative colitis (UC) involves persistent colonic inflammation, loss of epithelial barrier integrity, and disturbed immune regulation. Although Baitouweng decoction (BTW) is widely used for intestinal inflammatory disorders, the effects and mechanisms of colon-targeted administration remain unclear. PURP...