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In Taiwan, Corchorus capsularis L. has long been cultivated and the leaves are consumed as edible vegetable. This study is to investigate the protection effect of extract of C. capsularis leaves (ECC) on ethanol-induced acute gastric mucosal lesion (AGML) in rats. The results of phytochemical determination in ECC for total polyphenol, flavonoid and polysaccharide were 59.88 ± 0.61 mg/g, 86.39 ± 18.0 mg/g and 320.89 ± 6.99 mg/g, respectively. ECC showed significant activity of 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging with IC 50 of 0.25 mg/ml. In vivo studies, Sprague-Dawley (SD) rats were randomly divided into five groups: sham, vehicle (control) and low-, medium-, and high-dose ECC (LECC, MECC, HECC; 200, 400, and 1,000 mg/kg/day, respectively). ECC was able to decrease significantly the ulcer index (UI) caused by 80% ethanol in a dose dependent manner. There was no significant effect on growth trend and food intake rate after the administration of ECC in the experimental period. The serum lipid parameters in ECC groups revealed significant increase in glutathione peroxidase (GPx), superoxide dilmutase (SOD) and catalase (CAT), and a decrease in malondialdehyde (MDA). Significant amelioration on pathological lesion score was found in ECC groups compared with the control group (P&lt;0.05). The overall results indicate that ECC has protective effects on ethanol-induced AGML in rats, which could be associated with its antioxidant activity.

Protective effect of <i>Corchorus capsularis</i> L. leaves on ethanol-induced acute gastric mucosal lesion in rats