Please use this identifier to cite or link to this item: http://ahro.austin.org.au/austinjspui/handle/1/13004
Title: The vagus and neurotensin release in duodenal ulcer--clinical and experimental studies.
Authors: Bladin, Peter F;Fletcher, D R;Shulkes, Arthur;Hardy, Kenneth John
Affiliation: University of Melbourne, Department of Surgery, Austin Hospital, Heidelberg, Victoria, Australia.
Issue Date: 1-Sep-1987
Citation: Australian and New Zealand Journal of Surgery; 57(9): 661-5
Abstract: Although meal-stimulated neurotensin release from the small intestine is inhibited by cholinergic blockade, it is uncertain whether this cholinergic mechanism involves the vagus. This study examines the role of the vagus in neurotensin release by first determining the effect of vagotomy on meal-stimulated plasma neurotensin in man and second, the effect on plasma neurotensin of electrical stimulation of the vagus in sheep. Six volunteers were studied 6-8 weeks after truncal vagotomy and pyloroplasty. Basal plasma neurotensin at 32(15-67) pmol/l (median, range) was greater than in normal controls at 17 (9-52) pmol/l (P less than 0.05). Following a standard meal, plasma neurotensin rose significantly (P less than 0.05), but similarly in both post-vagotomy and control groups to maxima of 74 (43-76) pmol/l and 52 (35-65) pmol/l, respectively. Basal plasma neurotensin in the six sheep was below the detection limit of the assay and remained undetectable during electrical stimulation of the vagus. Significant rises in plasma pancreatic polypeptide and gastrin confirmed the efficacy of the electrical stimulation. It is concluded that although the vagus might have a tonic inhibitory effect on basal plasma neurotensin, meal-stimulated neurotensin release is vagally independent. The inhibitory cholinergic influence on meal-stimulated release is most likely therefore to be mediated by cholinergic nerves of the enteric nervous system.
Internal ID Number: 3689255
URI: http://ahro.austin.org.au/austinjspui/handle/1/13004
URL: http://www.ncbi.nlm.nih.gov/pubmed/3689255
Type: Journal Article
Subjects: Adolescent
Adult
Aged
Animals
Duodenal Ulcer.blood
Electric Stimulation
Food
Gastrins.blood
Humans
Middle Aged
Neurotensin.blood
Pancreatic Polypeptide.blood
Sheep
Vagotomy
Vagus Nerve.metabolism.physiology
Appears in Collections:Journal articles

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