Rats in the normal and model groups were induced by TNBS; WE, the whole extract-treated group after TNBS induction; PE, the polysaccharides extract-treated group after TNBS induction; AE, the alcohol extract-treated group after TNBS induction. The positive control group was treated with 100 mg/(kg·day) of 5-aminosalicylic acid. After treatment for 14 days, the cytokines IL-1α (A), IL-2 (B), IL-8 (C), IL-10 (D), IL-11 (E), IL-12 (F), TNF-α (G), TNF-γ (H), VGEF (I), M-CSF (J), MIP-α (K) and MPO (L) were produced. The assays were carried out according to the procedures recommended in the enzyme-linked immunosorbent assay kit manual. Values were means ± standard deviation of three independent experiments. #P < 0.05 vs the normal group, *P < 0.05, **P < 0.01 vs the TNBS-treated group, indicating significant differences compared with the LPS-treated group.