Evaluation of mechanism(s) of action underlying the antioxidant and antiulcer activity of Sesamum indicum leaves extract in experimental rats

OBJECTIVE: The current study aimed to estimate phytochemical screening, in vitro antioxidant activity, and gastroprotective activity of Sesamum indicum Linn ethanolic extract. MATERIALS AND METHODS: The current study was held out by ulceration induced by pylorus ligation and indomethacin-induced ulcer screening models in Wister albino rats. The screening of antiulcer activity of ethanolic extract of S. indicum leaves (EESIL) at the different amounts (100, 200, and 400 mg/kg; per orally for 7 days) was compared with omeprazole as a usual antiulcer drug. Additional parameters such as gastric content, pH, total acidity, pepsin activity ulcer score, free acidity, ulcer index (UI), % inhibition of ulcers, mean mucin, pepsin content, and total protein content were observed. RESULTS: In the pylorus ligation model, the pepsin activity free acidity, pepsin content, UI, total acidity, ulcer score, total protein content, and percentage ulcer inhibition were considerably decreased (P < 0.05 and P < 0.01), and mean mucin and gastric content pH extensively elevated (P < 0.05 and P < 0.01) in EESIL tested groups in the comparison of the control group. Doses (100, 200, and 400 mg/kg p.o.) of EESIL showed dose-reliant gastro protective outcomes, a considerable (P < 0.05 and P < 0.01) decrease in gastric parameters as UI and ulcer score and induction in gastric pH and percentage inhibition of ulcer compared with the control group. CONCLUSION: Antioxidant, anti-Ulcer, EESIL, and EESIL show antioxidant activity at different concentration. The fallout of the study indicated that the EESIL had improved antiulcer potential due to the decrease in offensive factors and increase in defensive factors.