Effects of analogs of (pyro)Glu-His-Gly-OH on food consumption and gastric acid secretion in rats
The effects of administration of (pyro)Glu-His-Gly-OH and its analogs on food consumption and 2-Deoxy-D-Glucose (2-DG)-induced gastric acid secretion were examined in rats. (Pyro)Glu-His-Gly-OH and (pyro)Glu-His-EA significantly reduced food consumption, but not gastric acid secretion as compared with controls. The tripeptides: (pyro)Glu-3Me-His-Gly-OH, (pyro)Glu-His-D-Ala-OH, and (pyro)Glu-Phe-Gly-OH were found to significantly inhibit 2-DG-induced gastric acid secretion. Our results indicate that some analogs of (pyro)Glu-His-Gly-OH cause a greater inhibition of food consumption or gastric acid secretion in rats than the original tripeptide, in analogy to findings obtained in dogs.
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