Evidence map›Paper›PMID 33712466›Full record

ArticleScience advances2021

GIP mediates the incretin effect and glucose tolerance by dual actions on α cells and β cells.

K El, S M Gray, M E Capozzi, E R Knuth, E Jin, B Svendsen, A Clifford, J L Brown, S E Encisco, B M Chazotte and 5 more

Open access · goldAbstract read
In one paragraph

Article in Science advances, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 89 papers.

0numbers the graph read from it
0cells of the map it votes in
89citing papers in PubMed
20.1field-weighted citation impact, top 1% 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

89 citing papers in PubMed, 122 citations in OpenAlex.

  1. Trial
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  12. Article
  13. Glucose-dependent insulinotropic polypeptide (GIP).Trends in endocrinology and metabolism: TEM · 2026
    Article
  14. Article
  15. Pan-hypoileism: an endocrine disease.Einstein (Sao Paulo, Brazil) · 2026
    Review
  16. Revitalizing GIP: Therapeutic Potential in Metabolic and Neurodegenerative Disorders.Diabetes, metabolic syndrome and obesity : targets and therapy · 2026
    Review
  17. Article
  18. Long-term follow-up study on the impact of a gut microbiota-supportive diet on heart failure and mortality outcomes.International journal of cardiology. Cardiovascular risk and prevention · 2025
    Article
  19. Article
  20. Article

29 more citing papers are in PubMed but not listed here.

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

15 authors at 3 institutions in 1 country.

K ElDuke Molecular Physiology Institute, Duke University, Durham, NC, USA.ORCID 0000-0002-5550-1684
S M GrayDuke Molecular Physiology Institute, Duke University, Durham, NC, USA.ORCID 0000-0003-2370-7968
M E CapozziDuke Molecular Physiology Institute, Duke University, Durham, NC, USA.ORCID 0000-0002-7587-0663
E R KnuthDivision of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Wisconsin-Madison, Madison, WI, USA.
E JinDivision of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Wisconsin-Madison, Madison, WI, USA.
B SvendsenDuke Molecular Physiology Institute, Duke University, Durham, NC, USA.
A CliffordDuke Molecular Physiology Institute, Duke University, Durham, NC, USA.
J L BrownDuke Molecular Physiology Institute, Duke University, Durham, NC, USA.ORCID 0000-0001-6399-4864
S E EnciscoDuke Molecular Physiology Institute, Duke University, Durham, NC, USA.ORCID 0000-0003-1797-9342
B M ChazotteDuke Molecular Physiology Institute, Duke University, Durham, NC, USA.
K W SloopDiabetes and Complications, Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN, USA.ORCID 0000-0001-6748-9929
D J NunezDuke Molecular Physiology Institute, Duke University, Durham, NC, USA.ORCID 0000-0003-4704-3967
M J MerrinsDivision of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Wisconsin-Madison, Madison, WI, USA.ORCID 0000-0003-1599-9227
D A D'AlessioDuke Molecular Physiology Institute, Duke University, Durham, NC, USA.ORCID 0000-0003-4155-4870
J E CampbellDuke Molecular Physiology Institute, Duke University, Durham, NC, USA. jonathan.campbell@duke.edu.ORCID 0000-0003-4358-6331
Duke University · USUniversity of Wisconsin–Madison · USEli Lilly (United States) · US

Funding

Endocrinology and Metabolism Training ProgramT32DK007012 · NIDDK · DUKE UNIVERSITY · PI DAVID A. D'ALESSIO · 1986 to 2026
$6.8M
Mitochondrial ADP privation: A unifying model for glucose-induced insulin secretion.R01DK127637 · NIDDK · YALE UNIVERSITY · PI KIBBEY, RICHARD G, MERRINS, MATTHEW J. · 2021 to 2025
$3.4M
Metabolic Functions of Pyruvate Kinase M2 in Pancreatic Beta CellsR01DK113103 · NIDDK · YALE UNIVERSITY · PI Matthew J. Merrins · 2017 to 2026
$3.3M
Novel metabolic actions of GIPR01DK125353 · NIDDK · DUKE UNIVERSITY · PI CAMPBELL, JONATHAN E, D'ALESSIO, DAVID A. · 2020 to 2024
$2.1M
Comparative analysis of geroprotective interventions in established and novel mouse models of Alzheimer's diseaseR01AG062328 · NIA · UNIVERSITY OF WISCONSIN-MADISON · PI LAMMING, DUDLEY WILLIAM, MERRINS, MATTHEW J. · 2018 to 2022
$2.0M
Mechanisms of insulin secretion mediated by alpha cellsR01DK123075 · NIDDK · DUKE UNIVERSITY · PI CAMPBELL, JONATHAN E · 2019 to 2023
$1.9M
Incretin Action in Physiology and DiabetesR01DK101991 · NIDDK · DUKE UNIVERSITY · PI D'ALESSIO, DAVID A. · 2014 to 2018
$1.8M
The Role of Islet DPP4 for Regulation of Glucose HomeostasisF32DK116542 · NIDDK · DUKE UNIVERSITY · PI CAPOZZI, MEGAN · 2018 to 2020
$188k
Nutrient-dependent action of glucagon and GLP-1 in glucose metabolism and insulin secretionF32DK121420 · NIDDK · DUKE UNIVERSITY · PI GRAY, SARAH MARIE · 2019 to 2020
$85k
NIA NIH HHS R01 AG062328NIDDK NIH HHS F32 DK116542NIDDK NIH HHS F32 DK121420NIDDK NIH HHS R01 DK101991NIDDK NIH HHS R01 DK113103NIDDK NIH HHS R01 DK123075NIDDK NIH HHS R01 DK125353NIDDK NIH HHS R01 DK127637NIDDK NIH HHS T32 DK007012
6 · The paper itself

Abstract

Glucose-dependent insulinotropic polypeptide (GIP) communicates nutrient intake from the gut to islets, enabling optimal levels of insulin secretion via the GIP receptor (GIPR) on β cells. The GIPR is also expressed in α cells, and GIP stimulates glucagon secretion; however, the role of this action in the postprandial state is unknown. Here, we demonstrate that GIP potentiates amino acid-stimulated glucagon secretion, documenting a similar nutrient-dependent action to that described in β cells. Moreover, we demonstrate that GIP activity in α cells contributes to insulin secretion by invoking paracrine α to β cell communication. Last, specific loss of GIPR activity in α cells prevents glucagon secretion in response to a meal stimulus, limiting insulin secretion and driving glucose intolerance. Together, these data uncover an important axis by which GIPR activity in α cells is necessary to coordinate the optimal level of both glucagon and insulin secretion to maintain postprandial homeostasis.

Indexed as

Diabetes Mellitus, Type 2IncretinsGastric Inhibitory PolypeptideGlucagonGlucoseHumansReceptors, Gastrointestinal HormoneReceptors, G-Protein-CoupledGastric Inhibitory Polypeptidegastric inhibitory polypeptide receptorGlucagonGlucoseIncretinsReceptors, Gastrointestinal HormoneReceptors, G-Protein-Coupled

Identifiers

PMID33712466
PMCPMC7954443
OpenAlexW3134075201

What OpenQuestion holds

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Registered trials

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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.