Abstract

Because of relevance to the operation of vagotomy in man, and to ‘medical vagotomy’ tests attempting to forecast the results of surgery, we have made a study in the dog of the effects of (1) blocking the vagus nerves with local anaesthetic and (2) injecting intravenously a ganglion-blocking drug. Gastric secretion was stimulated with both high and low doses of histamine and gastrin in dogs equipped with either a Heidenhain or a Pavlov pouch. Although the blocking procedures abolished acid and pepsin secretion caused by a pure vagal stimulant (2-deoxy-D-glucose) they had less effect against gastrin, and still less against histamine. The implications of these results are discussed.

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