Evidence map›Paper›PMID 23423571›Full record

ArticleDiabetes2013

Combination of obesity and high-fat feeding diminishes sensitivity to GLP-1R agonist exendin-4.

Frank A Duca, Yassine Sakar, Mihai Covasa

Open access · hybridAbstract read
In one paragraph

Article in Diabetes, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
5.1field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

27 citing papers in PubMed, 63 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Review
  5. Review
  6. Glucagon-Like Peptide-1 Receptors in the Gustatory Cortex Influence Food Intake.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2023
    Article
  7. Article
  8. Article
  9. Review
  10. Gastrointestinal peptides in eating-related disorders.Physiology & behavior · 2021 · on this map
    Review
  11. Review
  12. Review
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Review
  19. Inhibitory neurotransmission regulates vagal efferent activity and gastric motility.Experimental biology and medicine (Maywood, N.J.) · 2016
    Review
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 2 institutions in 3 countries.

Frank A DucaNeurobiology of Ingestive Behavior, Institut National de la Recherche Agronomique (INRA), UMR 1319 Micalis, Jouy-en-Josas, France.
Yassine Sakar
Mihai Covasa
AgroParisTech · FRŞtefan cel Mare University of Suceava · RO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Gastrointestinal mechanisms involved in the suppression of appetite are compromised in obesity. Glucagon-like peptide-1 (GLP-1) is released in response to nutrients, suppresses food intake, and has been shown to play a role in regulation of energy balance. It is not known whether obese-prone (OP) rats exhibit dysfunctional GLP-1 signaling that could contribute to decreased nutrient-induced satiation and hyperphagia. Therefore, we examined the effects of exogenous intraperitoneal administration of the GLP-1R agonist, exendin-4 (Ex-4), on food intake in OP and obese-resistant (OR) rats during chow or high-energy/high-fat (HE/HF) feeding. All doses of Ex-4 effectively suppressed intake in OP and OR rats fed chow; however, during HE/HF-feeding, OP rats suppressed intake significantly less than OR rats at all Ex-4 doses tested. This was associated with downregulation of GLP-1R mRNA expression in the vagal nodose ganglia of OP rats. Furthermore, HE/HF-fed OP rats had significantly lower plasma GLP-1 levels, decreased protein levels of GLP-1 in the intestinal epithelium, and reduced number of L cells in the distal ileum. These results demonstrate that HE/HF-feeding, coupled with OP phenotype, results in reduced endogenous GLP-1 and GLP-1R activation, indicating that impaired GLP-1 signaling during obesity may exacerbate hyperphagia and weight gain.

Indexed as

Diet, High-FatAdiposityAnimalsBody WeightDown-RegulationEatingExenatideGlucagon-Like Peptide-1 ReceptorHypoglycemic AgentsIleumIntestinal MucosaMaleNodose GanglionObesityPeptidesRatsExenatideGlp1r protein, ratGlucagon-Like Peptide-1 ReceptorHypoglycemic AgentsPeptidesReceptors, GlucagonVenoms

Identifiers

PMID23423571
PMCPMC3712059
OpenAlexW2149739806

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.