Fig. 2.

Anemoside B4 ameliorates inflammatory response of TNBS-induced colitis in rats. a Serial sections of colon tissues were stained with hematoxylin and eosin (H&E). Black arrows indicated the apoptosis cells. Colon histology was examined by H&E staining of paraffin-embedded sections in vehicle and TNBS-treated rats on the 8th day after TNBS administration. Scale bars: 100 µm. b Histological scores. c IL-6, d TNF-α, and e IL-1β were measured by ELISA. Data were shown as mean ± SD (n = 3). ^##: P < 0.01, vs. vehicle group. *: P < 0.05, **: P < 0.01 vs. TNBS group