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Role of Ghrelin in the Regulation of Gastric Acid Secretion Involving Nitrergic Mechanisms in Rats

Summary

Ghrelin, an endogenous ligand for growth hormone secretagogue receptor (GHS-R), has been identified in the rat and human gastrointestinal tract. Ghrelin has been proposed to play a role in gastric acid secretion. Nitric oxide (NO) was shown as a mediator in the mechanism of ghrelin action on gastric acid secretory function. However, there is a little knowledge about this topic. We have investigated the role of ghrelin in gastric acid secretion and the role of NO as a mediator. Wistar albino rats were used in this study. The pyloric sphincter was ligated through a small midline incision. By the time, saline (0.5 ml, iv) was injected to the control group, ghrelin (20 µg/kg, iv) was ...

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