Figure 2.

HE staining of the gastric tissue in rats (20×). (a) Normal control group. (b) Rats pretreated with carboxymethyl cellulose (CMC) (ulcer control). Disruption to the gastric epithelium, necrotic lesions penetrated deeply into the mucosa, extensive edema in the submucosal layer and leukocyte infiltration are apparent. (c) Rats pretreated with omeprazole (20 mg/kg). Mild disruption of the surface epithelium mucosa was present, but deep mucosal damage was absent. (d, e, f and g) The rats pretreated with 50, 100, 200, and 400 mg/kg Corchorus olitorius, respectively. There was no disruption to the surface epithelium and no edema or leukocyte infiltration into the submucosal layer.