Cited by 259Cardiovascular Function and Risk FactorsCardiac Fibrosis and RemodelingDiabetes Treatment and Management

A Glucagon-Like Peptide-1 Analog Reverses the Molecular Pathology and Cardiac Dysfunction of a Mouse Model of Obesity

Open access
Noyan-Ashraf, Mohammad Hossein, Shikatani, Eric Akihiko, Schuiki, Irmgard, Mukovozov, Ilya, Wu, Jun, Li, Ren-Ke, Volchuk, Allen, Robinson, Lisa Annette +3 more·2013·Circulation

Abstract

Background—: Cardiac consequences of obesity include inflammation, hypertrophy, and compromised energy metabolism. Glucagon-like peptide-1 is an incretin hormone capable of cytoprotective actions that reduces inflammation and endoplasmic reticulum stress in other tissues. Here we examine the cardiac effects of the glucagon-like peptide-1 analog liraglutide in a model of obesity, independent of changes in body weight. Methods and Results—: C57Bl6 mice were placed on a 45% high-fat diet (HFD) or a regular chow diet. Mice on HFD developed 46±2% and 60±2% greater body weight relative to regular chow diet–fed mice at 16 and 32 weeks, respectively (both P <0.0001), manifesting impaired glucose tolerance, insulin resistance, and cardiac ceramide accumulation by 16 weeks. One-week treatment with liraglutide (30 µg/kg twice daily) did not reduce body weight, but reversed insulin resistance, cardiac tumor necrosis factor-α expression, nuclear factor kappa B translocation, obesity-induced perturbations in cardiac endothelial nitric oxide synthase, connexin-43, and markers of hypertrophy and fibrosis, in comparison with placebo-treated HFD controls. Liraglutide improved the cardiac endoplasmic reticulum stress response and also improved cardiac function in animals on HFD by an AMP-activated protein kinase–dependent mechanism. Supporting a direct mechanism of action, liraglutide (100 nmol/L) prevented palmitate-induced lipotoxicity in isolated mouse cardiomyocytes and primary human coronary smooth muscle cells and prevented adhesion of human monocytes to tumor necrosis factor-α–activated human endothelial cells in vitro. Conclusions—: Weight-neutral treatment with a glucagon-like peptide-1 analog activates several cardioprotective pathways, prevents HFD-induced insulin resistance and inflammation, reduces monocyte vascular adhesion, and improves cardiac function in vivo by activating AMP-activated protein kinase. These data support a role for glucagon-like peptide-1 analogs in limiting the cardiovascular risks of obesity.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1161/circulationaha.112.091215

Cites

57 of 57 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Antiinflammatory benefits of GLP-1 medicines have been observed in various preclinical models, such as obesity, atherosclerosis, steatohepatitis, and nephritis, even in the absence of direct immune cell targeting.

    “antiinflammatory benefits have been observed in various preclinical models, such as obesity, atherosclerosis, steatohepatitis, and nephritis, even in the absence of direct immune cell targeting (27–32).”

    From Antiinflammatory actions of glucagon-like peptide-1–based therapies beyond metabolic benefits (2025) · cites this paper as [32]

    In “Liraglutide Reduced Inflammation in the Hearts of HFD-Fed Mice” (page unavailable), the paper reports reduced cardiac TNF-α and NFκB activation after liraglutide treatment, supporting the obesity example. Its endothelial-cell experiments also show reduced monocyte adhesion, but the paper does not establish that the benefits occurred without direct immune-cell targeting. The other listed disease models are not findings of this study. (LLM, conf=0.83)

    Experimental — accuracy not yet measured
  • Treatment with GLP-1RAs activates several cardioprotective pathways, prevents HFD-induced insulin resistance and inflammation, improves endothelial function, and ameliorates cardiac function in obese mice.

    “treatment with GLP-1RAs activates several cardioprotective pathways, prevents HFD-induced insulin resistance and inflammation, improves endothelial function, and ameliorates cardiac function in obese mice.”
  • Other vitro studies observed a beneficial effect of GLP-1RAs on ANGII-induced cardiac fibrosis.

    “Other vitro studies observed a beneficial effect of GLP-1RAs on ANGII-induced cardiac fibrosis as well.”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

2 retracted

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Noyan-Ashraf, M. H., Shikatani, E. A., Schuiki, I., Mukovozov, I., Wu, J., Li, R.-K., Volchuk, A., Robinson, L. A., Billia, F., Drucker, D. J., & Husain, M.
Affiliations
University of Toronto (CA)
Venue
Circulation
Published
2013-01
Volume
127
Issue
1
Pages
74-85
ISSN
  • 0009-7322 (ISSN-L)
  • 1524-4539
OpenAlex
W2065623326
Cited by
259
References
57
Citations by year
2026: 12 · 2025: 17 · 2024: 23 · 2023: 15 · 2022: 16 · 2021: 15 · 2020: 21 · 2019: 16 · 2018: 15 · 2017: 15 · 2016: 21 · 2015: 29 · 2014: 31 · 2013: 13
FWCI
14.84
Type
journal article
Language
en
Open access
Locations
  • Circulation (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Heart and Stroke Foundation of Canada
  • Novo Nordisk
  • Canadian Institutes of Health Research (114922_1)
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiovascular Function and Risk Factors
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac Fibrosis and Remodeling
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Treatment and Management
Keywords
glucagon-like peptide-1 analogues, liraglutide, obesity, cardiac dysfunction, high-fat diet, insulin resistance, endoplasmic reticulum stress, AMPK, ceramide accumulation, cardiac inflammation, TNF-α, NF-κB, endothelial nitric oxide synthase, connexin 43, cardiac hypertrophy, myocardial fibrosis, lipotoxicity, monocyte adhesion
MeSH terms
Liraglutide, Animals, Blood Glucose, Cardiotonic Agents, Cell Line, Coronary Vessels, Disease Models, Animal, Heart Diseases, Humans, Hypercholesterolemia, Insulin Resistance, Mice, Inbred C57BL, Monocytes, Muscle, Smooth, Vascular, Obesity, Risk Factors, Tumor Necrosis Factor-alpha, Signal Transduction, Gene Expression, Connexin 43, Myocytes, Cardiac, Endothelial Cells, Mice, Glucagon-Like Peptide 1, Nitric Oxide Synthase Type III, Endoplasmic Reticulum Stress

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review