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- W2155166170 abstract "Background: Different mechanisms have been proposed for the pathophysiology of indomethacin-induced gastric ulceration (IIGU), including changes in gastric mucosal blood flow, motility, and acidity. It seems probable that adenosine 5'-triphosphate (ATP)-dependent potassium channels (KATP) have a regulatory effect on the above factors. The aim of the present study was to investigate the effects of KATP channel modulators, diazoxide as a channel opener and glibenclamide as a KATP antagonist, on IIGU. Methods: Male rats were starved for 24 h. Groups of 10 animals were used. Diazoxide at doses of 5, 15, and 45 mg/kg and glibenclamide at doses of 2, 6, and 18 mg/kg were injected intraperitoneally 30 min before the subcutaneous injection of 30 mg/kg of indomethacin. To assess the effects of indomethacin on the gastric mucosal vascular bed, different doses of enalapril and hydralazine, two vasodilators with mechanisms of action independent of KATP, were also studied. Gastric mucosal ulceration was noted, and fasting blood sugar was assayed. The data were compared between the groups. Results: Indomethacin produced gastric ulceration in 100% of rats with a severity rating of 2.15/10. This was prevented by diazoxide and aggravated by glibenclamide. Diazoxide increased and glibenclamide decreased fasting blood sugar. Neither enalapril nor hydralazine showed any effect on IIGU and/or fasting blood sugar. Conclusion: KATP modulators may play an important role in the pathophysiology of IIGU through a peripheral action on mucosal and submucosal blood flow of the stomach, gastric motility, acidity, or an action on the vagus complex center of the brain." @default.
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- W2155166170 title "Potassium Channel Modulators and Indomethacin-Induced Gastric Ulceration in Rats" @default.
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- W2155166170 doi "https://doi.org/10.1080/003655299750025048" @default.
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