The effects of duodenal peptides on glucagon-like peptide-1 secretion from the ileum. A duodeno--ileal loop?

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The effects of duodenal peptides on glucagon-like peptide-1 secretion from the ileum. A duodeno--ileal loop? / Hansen, Lene; Holst, Jens Juul.

I: Regulatory Peptides, Bind 110, Nr. 1, 31.12.2002, s. 39-45.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningfagfællebedømt

Harvard

Hansen, L & Holst, JJ 2002, 'The effects of duodenal peptides on glucagon-like peptide-1 secretion from the ileum. A duodeno--ileal loop?', Regulatory Peptides, bind 110, nr. 1, s. 39-45.

APA

Hansen, L., & Holst, J. J. (2002). The effects of duodenal peptides on glucagon-like peptide-1 secretion from the ileum. A duodeno--ileal loop? Regulatory Peptides, 110(1), 39-45.

Vancouver

Hansen L, Holst JJ. The effects of duodenal peptides on glucagon-like peptide-1 secretion from the ileum. A duodeno--ileal loop? Regulatory Peptides. 2002 dec. 31;110(1):39-45.

Author

Hansen, Lene ; Holst, Jens Juul. / The effects of duodenal peptides on glucagon-like peptide-1 secretion from the ileum. A duodeno--ileal loop?. I: Regulatory Peptides. 2002 ; Bind 110, Nr. 1. s. 39-45.

Bibtex

@article{d723d4bbd79e46408d62703a60683d9a,
title = "The effects of duodenal peptides on glucagon-like peptide-1 secretion from the ileum. A duodeno--ileal loop?",
abstract = "Secretion of the gut hormone glucagon-like peptide-1 (GLP-1) is stimulated by meal ingestion. The response is rapid, suggesting a stimulatory pathway elicited from the upper gastrointestinal area. In pigs, we have been unable to demonstrate a neural stimulatory pathway, but GLP-1 secretion is regulated by local somatostatin secretion. In search for an endocrine pathway, we studied the effect of a range of concentrations of cholecystokinin octapeptide (26-33) (CCK 8), gastric inhibitory peptide 1-42 (GIP), secretin, motilin, calcitonin gene-related peptide (CGRP), and the modified amino acid, 5-hydroxytryptamine (serotonin, 5-HT) on GLP-1 and somatostatin release from isolated perfused segments of porcine ileum.GLP-1 secretion was stimulated by 1 nM CCK 8 and 10 nM GIP, but suppressed by 1 nM motilin and 1 microM 5-HT. Secretin and CGRP had no effect. Somatostatin secretion was stimulated by CCK 8 at 1 and 10 nM, by GIP at 1 and 10 nM and by 10 nM CGRP. Secretin, 5-HT and motilin had no effect on somatostatin secretion. We conclude that CCK 8 and GIP 1-42 stimulated GLP-1 secretion, but only in concentrations greatly exceeding normal postprandial concentrations. Thus, we find it unlikely that endocrine agents from the duodenum regulate GLP-1 secretion in pigs.",
keywords = "Animals, Calcitonin Gene-Related Peptide, Chemotherapy, Cancer, Regional Perfusion, Duodenum, Gastric Inhibitory Polypeptide, Gastrointestinal Hormones, Glucagon, Glucagon-Like Peptide 1, Ileum, Motilin, Peptide Fragments, Postprandial Period, Protein Precursors, Sincalide, Swine",
author = "Lene Hansen and Holst, {Jens Juul}",
year = "2002",
month = dec,
day = "31",
language = "English",
volume = "110",
pages = "39--45",
journal = "Regulatory Peptides",
issn = "0167-0115",
publisher = "Elsevier",
number = "1",

}

RIS

TY - JOUR

T1 - The effects of duodenal peptides on glucagon-like peptide-1 secretion from the ileum. A duodeno--ileal loop?

AU - Hansen, Lene

AU - Holst, Jens Juul

PY - 2002/12/31

Y1 - 2002/12/31

N2 - Secretion of the gut hormone glucagon-like peptide-1 (GLP-1) is stimulated by meal ingestion. The response is rapid, suggesting a stimulatory pathway elicited from the upper gastrointestinal area. In pigs, we have been unable to demonstrate a neural stimulatory pathway, but GLP-1 secretion is regulated by local somatostatin secretion. In search for an endocrine pathway, we studied the effect of a range of concentrations of cholecystokinin octapeptide (26-33) (CCK 8), gastric inhibitory peptide 1-42 (GIP), secretin, motilin, calcitonin gene-related peptide (CGRP), and the modified amino acid, 5-hydroxytryptamine (serotonin, 5-HT) on GLP-1 and somatostatin release from isolated perfused segments of porcine ileum.GLP-1 secretion was stimulated by 1 nM CCK 8 and 10 nM GIP, but suppressed by 1 nM motilin and 1 microM 5-HT. Secretin and CGRP had no effect. Somatostatin secretion was stimulated by CCK 8 at 1 and 10 nM, by GIP at 1 and 10 nM and by 10 nM CGRP. Secretin, 5-HT and motilin had no effect on somatostatin secretion. We conclude that CCK 8 and GIP 1-42 stimulated GLP-1 secretion, but only in concentrations greatly exceeding normal postprandial concentrations. Thus, we find it unlikely that endocrine agents from the duodenum regulate GLP-1 secretion in pigs.

AB - Secretion of the gut hormone glucagon-like peptide-1 (GLP-1) is stimulated by meal ingestion. The response is rapid, suggesting a stimulatory pathway elicited from the upper gastrointestinal area. In pigs, we have been unable to demonstrate a neural stimulatory pathway, but GLP-1 secretion is regulated by local somatostatin secretion. In search for an endocrine pathway, we studied the effect of a range of concentrations of cholecystokinin octapeptide (26-33) (CCK 8), gastric inhibitory peptide 1-42 (GIP), secretin, motilin, calcitonin gene-related peptide (CGRP), and the modified amino acid, 5-hydroxytryptamine (serotonin, 5-HT) on GLP-1 and somatostatin release from isolated perfused segments of porcine ileum.GLP-1 secretion was stimulated by 1 nM CCK 8 and 10 nM GIP, but suppressed by 1 nM motilin and 1 microM 5-HT. Secretin and CGRP had no effect. Somatostatin secretion was stimulated by CCK 8 at 1 and 10 nM, by GIP at 1 and 10 nM and by 10 nM CGRP. Secretin, 5-HT and motilin had no effect on somatostatin secretion. We conclude that CCK 8 and GIP 1-42 stimulated GLP-1 secretion, but only in concentrations greatly exceeding normal postprandial concentrations. Thus, we find it unlikely that endocrine agents from the duodenum regulate GLP-1 secretion in pigs.

KW - Animals

KW - Calcitonin Gene-Related Peptide

KW - Chemotherapy, Cancer, Regional Perfusion

KW - Duodenum

KW - Gastric Inhibitory Polypeptide

KW - Gastrointestinal Hormones

KW - Glucagon

KW - Glucagon-Like Peptide 1

KW - Ileum

KW - Motilin

KW - Peptide Fragments

KW - Postprandial Period

KW - Protein Precursors

KW - Sincalide

KW - Swine

M3 - Journal article

C2 - 12468108

VL - 110

SP - 39

EP - 45

JO - Regulatory Peptides

JF - Regulatory Peptides

SN - 0167-0115

IS - 1

ER -

ID: 132056393