After vagotomy atropine suppresses gastrin release by food.
Changes in serum gastrin in response to feeding a meal of beef liver (15 g kg(-1)) were studied in 5 gastric fistula dogs with and without administration of atropine sulfate (0.2 mg kg(-1) intravenously). The studies were repeated after a truncal vagotomy that abolished acid secretion in response to 2-deoxyglucose. Before vagotomy atropine had little effect on the gastrin response to a meal. After vagotomy the gastrin response to feeding was greatly enhanced, but now atropine depressed the gastrin response at all times after the meal. It is concluded that vagotomy enhances the serum gastrin response to feeding and that atropine counteracts this enhancement.[1]References
- After vagotomy atropine suppresses gastrin release by food. Debas, H.T., Walsh, J.H., Grossman, M.I. Gastroenterology (1976) [Pubmed]
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