Activation of nuclear factor-kappa B and effects of pyrrolidine dithiocarbamate on TNBS-induced rat colitis

Figure 1 Changes of histological morphology in NS or T/E group. A: No damage in NS group, HE×200; B: Erosion, hemorrhage, edema, and ulceration at mucous and submucous layers at 24 h time point. HE×100; C: Ulcer at 14 d, HE×100; D: Granuloma-like structures and inflammatory cells in submucosa at 14 d, HE×100.