Evidence map›Paper›PMID 18427132›Full record

ArticleCirculation2008

Cardioprotective and vasodilatory actions of glucagon-like peptide 1 receptor are mediated through both glucagon-like peptide 1 receptor-dependent and -independent pathways.

Kiwon Ban, M Hossein Noyan-Ashraf, Judith Hoefer, Steffen-Sebastian Bolz, Daniel J Drucker, Mansoor Husain

Erratum issued 4 registry-linked trialsAbstract readComparative Study
PubMed Publisher
In one paragraph

Article in Circulation, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. It is linked to 4 registered trials, which are not on this map. Cited by 438 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
438citing papers in PubMed, 4 pooled it
32.3field-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.

NCT01761318 phase4completedstarted 2013, after this paper: background citation

Magnetic Resonance Assessment of Victoza Efficacy in the Regression of Cardiovascular Dysfunction In Type 2 Diabetes Mellitus

Ran2013Enrolled50Registered outcomes48Posted comparisons0ConditionsCardiovascular Disease, Diabetes Mellitus Type 2, Diastolic Dysfunction, Fatty LiverArmsliraglutide, Liraglutide - Placebo
Open the trial in the graph
NCT00923962 nacompletednot on this mapstarted 2009, after this paper: background citation

Endothelial and Metabolic Effects of GLP-1 in Coronary Circulation in Patients With Type 2 Diabetes Mellitus

TypeinterventionalSponsorUniversity Hospital, Gentofte, CopenhagenRan2009 to 2012Enrolled35ConditionsType 2 Diabetes MellitusArmsGlucagon like peptide-1, Adenosine
NCT02602600 phase4completednot on this mapstarted 2015, after this paper: background citation

Effect of Glucagon-like Peptide-1 Stimulation on Coronary Microvascular Dysfunction in Women With Angina Pectoris and no Obstructive Stenosis of Major Coronary Vessels

TypeinterventionalSponsorEva PrescottRan2015 to 2017Enrolled33ConditionsMicrovascular AnginaArmsLiraglutide
NCT07019519 narecruitingnot on this mapstarted 2025, after this paper: background citation

Interplay Between Gut Hormones and Autonomic Postprandial Blood Flow Regulation in Patients With POTS

TypeinterventionalSponsorUniversity of CopenhagenRan2025 to 2026Enrolled30ConditionsPostural Orthostatic Tachycardia Syndrome (POTS), HealthyArmsSaline/Placebo, GIPR antagonist, GLP-1R antagonist, CCK agonist
3 · Its place in the literature

Who cites it

438 citing papers in PubMed, 4 syntheses or guidelines pooled it, 1,037 citations in OpenAlex.

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  14. Effects of GLP-1 receptor agonists on body weight and cardiovascular outcomes: a review.Netherlands heart journal : monthly journal of the Netherlands Society of Cardiology and the Netherlands Heart Foundation · 2026
    Review
  15. Future GLP-1 receptor co-agonists and their cardiac effects.Naunyn-Schmiedeberg's archives of pharmacology · 2026
    Article
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378 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

6 authors at 3 institutions in 2 countries.

Kiwon BanHeart and Stroke Richard Lewar Centre of Excellence for Cardiovascular Research, University of Toronto, Ontario, Canada M5G-1C4.
M Hossein Noyan-Ashraf
Judith Hoefer
Steffen-Sebastian Bolz
Daniel J Drucker
Mansoor Husain
Jisc · GBLunenfeld-Tanenbaum Research Institute · CAToronto General Hospital · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe glucagon-like peptide 1 receptor (GLP-1R) is believed to mediate glucoregulatory and cardiovascular effects of the incretin hormone GLP-1(7-36) (GLP-1), which is rapidly degraded by dipeptidyl peptidase-4 (DPP-4) to GLP-1(9-36), a truncated metabolite generally thought to be inactive. Novel drugs for the treatment of diabetes include analogues of GLP-1 and inhibitors of DPP-4; however, the cardiovascular effects of distinct GLP-1 peptides have received limited attention. METHODS AND

resultsHere, we show that endothelium and cardiac and vascular myocytes express a functional GLP-1R as GLP-1 administration increased glucose uptake, cAMP and cGMP release, left ventricular developed pressure, and coronary flow in isolated mouse hearts. GLP-1 also increased functional recovery and cardiomyocyte viability after ischemia-reperfusion injury of isolated hearts and dilated preconstricted arteries from wild-type mice. Unexpectedly, many of these actions of GLP-1 were preserved in Glp1r(-/-) mice. Furthermore, GLP-1(9-36) administration during reperfusion reduced ischemic damage after ischemia-reperfusion and increased cGMP release, vasodilatation, and coronary flow in wild-type and Glp1r(-/-) mice, with modest effects on glucose uptake. Studies using a DPP-4-resistant GLP-1R agonist and inhibitors of DPP-4 and nitric oxide synthase showed that the effects of GLP-1(7-36) were partly mediated by GLP-1(9-36) through a nitric oxide synthase-requiring mechanism that is independent of the known GLP-1R.

conclusionsThese data describe cardioprotective actions of GLP-1(7-36) mediated through the known GLP-1R and novel cardiac and vascular actions of GLP-1(7-36) and its metabolite GLP-1(9-36) independent of the known GLP-1R. Our data suggest that the extent to which GLP-1 is metabolized to GLP-1(9-36) may have functional implications in the cardiovascular system.

Indexed as

AnimalsCells, CulturedCricetinaeGlucagon-Like Peptide 1Glucagon-Like Peptide-1 ReceptorMaleMiceMice, Inbred C57BLMice, Mutant StrainsMyocardial IschemiaPeptide FragmentsRatsReceptors, GlucagonSignal TransductionVasodilationGlp1r protein, mouseGlp1r protein, ratGlucagon-Like Peptide 1glucagon-like peptide 1 (7-36)amideGlucagon-Like Peptide-1 ReceptorPeptide FragmentsReceptors, Glucagon

Identifiers

PMID18427132
OpenAlexW2000976083

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.