Studies on mechanism of retching and vomiting in dogs: effect of peripheral dopamine blocker on myoelectric changes in antrum and upper small intestine

In five conscious dogs prepared with a gastric cannula and platinum monopolar electrodes in the antrum, duodenum, and jejunum, the effect of dopamine or copper sulfate on the myoelectric activity was studied. During phase I of interdigestive myoelectric activity, retching, and/or vomiting occurred i...

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