Abstract
STIMULATION of smooth muscle is one of several physiological activities of natural gastrin that are shared by the C-terminal tetrapeptide sequence Try-Met-Asp-Phe-NH2 and other structurally related peptides1. The stimulation by gastrin I and gastrin II of tone and motility of a denervated fundic pouch in a conscious dog is inhibited by atropine2. Stimulation of gastrointestinal motility in man by gastrin is also diminished by atropine3. Contractions of the isolated ileum of guinea-pig are probably mediated by stimulation of postganglionic parasympathetic nerves, leading to the liberation of acetylcholine4.
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MIKOS, E., VANE, J. Effects of Gastrin and its Analogues on Isolated Smooth Muscles. Nature 214, 105–107 (1967). https://doi.org/10.1038/214105a0
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DOI: https://doi.org/10.1038/214105a0
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