Histological analysis of colon sections stained with H&E in TNBS-induced colitis (n = 12).

<p>(A) Representative pictures in chronic colitis. (B) Semi-quantitative evaluation. Colon sections were semi-quantitatively evaluated double-blindly by a pathologist. Scores determined by severity of inflammation 0–3; depth of injury 0–3; and crypt damage 0–4. **p < 0.01; ***p < 0.001