Cited by 394Diabetes Treatment and ManagementRegulation of Appetite and ObesityPancreatic function and diabetes

Attenuated GLP-1 secretion in obesity: cause or consequence

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Ranganath, L R, Beety, J M, Morgan, L M, Wright, J W, Howland, R, Marks, V·1996·Gut

Abstract

BACKGROUND: Hypersecretion of insulinotropic factors such as glucose dependent insulinotropic polypeptide (GIP) and glucagon-like peptide-1(7-36)amide (GLP-1) have been postulated to account for the hyperinsulinaemia of obesity. AIMS: To examine the role of GLP-1 and GIP in obese women and matched controls. SUBJECTS: Six lean and six obese women subjects matched for age. METHODS: The gut hormone, plasma glucose, and serum triglyceride responses were studied over 180 minutes after oral carbohydrate and fat meals. Heparin (10,000 units) was given intravenously at 120 minutes. RESULTS: There was pronounced attenuation of plasma GLP-1 secretion to oral carbohydrate in the obese compared with lean subjects but no such difference in response to oral fat load. There were no differences in the plasma GIP responses to carbohydrate or fat feeding. There was an apparent fall in plasma GLP-1 values in all subjects after administration of heparin. CONCLUSION: Postprandial GLP-1 secretion in response to oral carbohydrate is considerably attenuated in obese subjects. The cause of this attenuation of GLP-1 secretion is not known although we suggest that both this fall and the overall reduction in GLP-1 values in obese subjects may be related to an increase in plasma non-esterified fatty acids.

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Authors
Ranganath, L. R., Beety, J. M., Morgan, L. M., Wright, J. W., Howland, R., & Marks, V
Affiliations
University of Surrey (GB)
Venue
Gut
Publisher
BMJ
Published
1996-06
Volume
38
Issue
6
Pages
916-919
ISSN
  • 0017-5749 (ISSN-L)
  • 1468-3288
OpenAlex
W2158803184
Cited by
394
References
19
Citations by year
2026: 10 · 2025: 11 · 2024: 15 · 2023: 9 · 2022: 14 · 2021: 14 · 2020: 14 · 2019: 18 · 2018: 11 · 2017: 15 · 2016: 11 · 2015: 17 · 2014: 26 · 2013: 23 · 2012: 12
FWCI
4.01
Type
journal article
Language
en
Open access
Locations
  • Gut (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Treatment and Management
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
  • Health Sciences › Medicine › Surgery › Pancreatic function and diabetes
Keywords
glucagon-like peptide-1, glucose-dependent insulinotropic polypeptide, obesity, hyperinsulinemia, postprandial hormone secretion, heparin, free fatty acids, oral glucose tolerance
MeSH terms
Adult, Dietary Carbohydrates, Dietary Fats, Glucagon-Like Peptides, Female, Gastric Inhibitory Polypeptide, Glucagon, Heparin, Humans, Obesity, Peptide Fragments, Radioimmunoassay, Case-Control Studies, Glucagon-Like Peptide 1

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