DAI of mice. After colitis induction, the animals were treated for 7 days with distilled water, 3% of DSS, or 125 mg/kg of SASP or three groups with different doses of BBH. The model group showed no significant improvement after 14 days, while the SASP and three doses of BBH groups exhibited visibly improved DAI of disease mice. n = 6, **P < .01 compared with model. DAI, disease activity index; DSS, dextran sulfate sodium; SASP, Sulfasalazine Tablets.