Figure 5.

Stomach from control group (a) showing normal histological structure of stomach tissue that consisted of mucous epithelium covering gastric acini (H&E stain). Stomach from ulcer group showing destruction of the mucosal covering associated with extensive hemorrhage (b), and expansion of the submucosal layer with edema, and diffuse extensive hemorrhage (c). Stomach from ovothiol A (250 mg/kg) treated group showing apparently normal gastric mucosa (d) with mild to moderate submucosal edema and lowered number of mononuclear cells infiltration (e). stomach from ovothiol A (500 mg/kg) treated group showing apparently normal gastric mucosa (f) and few mononuclear cells infiltration with mild submucosal edema (g).