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Gastroprotective effect of Oxalis corniculata (whole plant) on experimentally induced gastric ulceration in Wistar rats

Author(s): SS Sakat, Preeti Tupe, Archana Juvekar

The objective of the present study was to investigate the antiulcer activity of methanol extract of Oxalis corniculata (whole plant) using pylorus ligation and indomethacin-induced gastric ulceration in Wistar rats. The extract was preliminary evaluated for acute oral toxicity test using Organisation for Economic Co-operation and Development guidelines 423. Further, it was studied for antiulcer potential at the dose levels of 125, 250 and 500 mg/kg. Ranitidine was used as a standard drug (100 mg/kg). Acid secretory parameters like gastric volume, pH, total acidity and free acidity were measured in pylorus ligation model, whereas numbers of ulcers, ulcers score and ulcer index was measured in pylorus ligated and indomethacin treated rats. Pretreatment of test extract significantly (p<0.05) decreased the gastric volume, total acidity, free acidity and increase in the pH of the gastric fluid in pylorus-ligated rats. It also showed significant (p<0.05) decrease in number of ulcers, ulcers score and ulcer index in pylorus ligated and indomethacin treated rats. Results of the study suggest that, the methanol extract of Oxalis corniculata possesses significant antisecretory and antiulcer effects and justify the traditional usage of this herb to treat peptic ulcers.

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