Abstract:The intra-operative surface pH of the corpus fundic mucosa in anaesthetized dogs was studied with a glass electrode during stimulation with graded doses of pentagastrin. The mucosal pH could be related to the dose of pentagastrin by a hyperbolic curve. With intact vagus ED50 averaged 0.67 micrograms kg-1 h-1 of pentagastrin and maximum effect corresponded to an average pH of 1.9. Immediately after truncal vagotomy there was a significant shift of the curve to the right corresponding to an average ED50 of 3.77 … Show more
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