Although the purified porcine enteroglucagons glicentin and oxyntomodulin inhibit pentagastrin-stimulated gastrin acid secretion when given parenterally to rats, it is not known whether the postprandial rise in endogenous enteroglucagons is capable of exerting a similar effect. We have used the α-glucosidase inhibitor acarbose in combination with a sucrose- and starch-rich semisynthetic diet over 8 days to bring about a mean increase of 89 pmol/l in the fasting plasma enteroglucagon concentration in rats, without significantly affecting plasma gastrin concentrations. There was no significant suppression of pentagastrin-stimulated gastric acid secretion in the acarbose-treated rats, suggesting that endogenous enteroglucagons do not act as physiological inhibitors of gastric acid secretion.

Journal Section:
Original Paper
Keywords:
Enteroglucagon, GLI, Enterogastrone, Gastrin, Pentagastrin, Gastric acid secretion, Acarbose
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© 1985 S. Karger AG, Basel
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1985
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