Evidence map›Paper›PMID 17676310›Full record

ArticleDiabetologia2007

The alpha cell expresses glucagon-like peptide-2 receptors and glucagon-like peptide-2 stimulates glucagon secretion from the rat pancreas.

J de Heer, J Pedersen, C Orskov, J J Holst

Open access · bronzeAbstract read
PubMed Publisher
In one paragraph

Article in Diabetologia, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
2.2field-weighted citation impact, top 14% 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

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 66 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Article
  5. Class B1 GPCRs: insights into multireceptor pharmacology for the treatment of metabolic disease.American journal of physiology. Endocrinology and metabolism · 2024
    Review
  6. GLP-2 regulation of intestinal lipid handling.Frontiers in physiology · 2024
    Review
  7. Article
  8. Review
  9. Review
  10. Article
  11. Article
  12. The Cells of the Islets of Langerhans.Journal of clinical medicine · 2018
    Review
  13. Review
  14. Article
  15. Review
  16. The CNS glucagon-like peptide-2 receptor in the control of energy balance and glucose homeostasis.American journal of physiology. Regulatory, integrative and comparative physiology · 2014
    Review
  17. Article
  18. GLP-2 receptor in POMC neurons suppresses feeding behavior and gastric motility.American journal of physiology. Endocrinology and metabolism · 2012
    Article
  19. Article
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

4 authors at 1 institution in 1 country.

J de HeerDepartment of Medical Physiology, The Panum Institute, University of Copenhagen, Blegdamsvej 3, 2200, Copenhagen N, Denmark.
J Pedersen
C Orskov
J J Holst
University of Copenhagen · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aims/hypothesisGlucagon-like peptide-2 (GLP-2) is a gut hormone regulating intestinal growth and nutrient absorption. Recently, GLP-2 has been reported to stimulate glucagon secretion in healthy humans. We sought to clarify the mechanism and physiological significance of this endocrine effect. MATERIALS AND

methodsThe expression of the GLP-2 receptor gene, Glpr2, and the localisation of the protein were evaluated by real-time PCR on cDNA from isolated rat islets and by immunohistochemistry in rat and human pancreas. The glucagon, insulin and somatostatin responses to 0.1, 1 and 10 nmol/l GLP-2 and to GLP-1 and GLP-2 given simultaneously were studied in the isolated perfused rat pancreas.

resultsExpression of Glp2r transcript was confirmed by PCR. In both human and rat pancreas, GLP-2r immunoreactivity was colocalised with proglucagon. GLP-2 at 10 nmol/l increased glucagon secretion significantly from a pre-infusion level of 0.314 +/- 0.07 to 0.508 +/- 0.09 pmol/min (p < 0.0005), whereas lower GLP-2 concentrations were ineffective. Neither insulin nor somatostatin output was influenced. During simultaneous administration of GLP-1 and GLP-2, net glucagon release was no longer reduced by 0.1, 1 or 10 nmol/l GLP-1, which, when given alone, inhibited glucagon secretion by 25.0 +/- 9.9, 46.2 +/- 4.8, and 44.1 +/- 2.9%, respectively. CONCLUSIONS/

interpretationOur results suggest that GLP-2 stimulates glucagon secretion through GLP-2r present on the alpha cell in rats. In the presence of GLP-2, the glucagonostatic effect of GLP-1, normally co-secreted with GLP-2, is markedly inhibited. Based on our analogous immunohistochemical findings in human pancreas, this mechanism also applies in all likelihood to humans. However, further in vivo studies are required to assess the physiological significance of the glucagonotropic action of GLP-2 in humans.

Indexed as

AnimalsDeoxyribonucleasesDNA, ComplementaryGene Expression RegulationGlucagonGlucagon-Like Peptide 2Glucagon-Like Peptide-2 ReceptorHumansMalePancreasPolymerase Chain ReactionProglucagonRatsRats, WistarReceptors, GlucagonDeoxyribonucleasesDNA, ComplementaryGlucagonGlucagon-Like Peptide 2Glucagon-Like Peptide-2 ReceptorProglucagonReceptors, Glucagon

Identifiers

PMID17676310
OpenAlexW1966049344

What OpenQuestion holds

Textmetadata
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.