Cited by 8Cardiovascular Effects of ExerciseCardiomyopathy and Myosin StudiesCardiac electrophysiology and arrhythmias

High-Fat Diet Augments Myocardial Inflammation and Cardiac Dysfunction in Arrhythmogenic Cardiomyopathy

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Centner, Ann M., Shiel, Emily A., Farra, Waleed, Cannon, Elisa N., Landim-Vieira, Maicon, Salazar, Gloria, Chelko, Stephen P.·2024·Nutrients

Abstract

Arrhythmogenic cardiomyopathy (ACM) is a familial heart disease characterized by cardiac dysfunction, arrhythmias, and myocardial inflammation. Exercise and stress can influence the disease’s progression. Thus, an investigation of whether a high-fat diet (HFD) contributes to ACM pathogenesis is warranted. In a robust ACM mouse model, 8-week-old Desmoglein-2 mutant (Dsg2mut/mut) mice were fed either an HFD or rodent chow for 8 weeks. Chow-fed wildtype (WT) mice served as controls. Echo- and electrocardiography images pre- and post-dietary intervention were obtained, and the lipid burden, inflammatory markers, and myocardial fibrosis were assessed at the study endpoint. HFD-fed Dsg2mut/mut mice showed numerous P-wave perturbations, reduced R-amplitude, left ventricle (LV) remodeling, and reduced ejection fraction (%LVEF). Notable elevations in plasma high-density lipoprotein (HDL) were observed, which correlated with the %LVEF. The myocardial inflammatory adipokines, adiponectin (AdipoQ) and fibroblast growth factor-1, were substantially elevated in HFD-fed Dsg2mut/mut mice, albeit no compounding effect was observed in cardiac fibrosis. The HFD not only potentiated cardiac dysfunction but additionally promoted adverse cardiac remodeling. Further investigation is warranted, particularly given elevated AdipoQ levels and the positive correlation of HDL with the %LVEF, which may suggest a protective effect. Altogether, the HFD worsened some, but not all, disease phenotypes in Dsg2mut/mut mice. Notwithstanding, diet may be a modifiable environmental factor in ACM disease progression.

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  • Multiple pro-inflammatory cytokines and chemokines are upregulated early in ACM pathogenesis.

    “Multiple pro-inflammatory cytokines and chemokines have been shown to be upregulated early in ACM pathogenesis.”

    From A Paradigm Shift: Arrhythmogenic Cardiomyopathy Is an Inflammatory Disease (2026) · cites this paper as [35]

    The Introduction reports increased inflammatory cytokine and chemokine levels in ACM, and Results §3.3 identifies elevated inflammatory markers in Dsg2-mutant mice. But the measurements were made at 16 weeks, after cardiac dysfunction had developed; the paper does not establish that these markers are upregulated early in ACM pathogenesis. (LLM, conf=0.87)

    Experimental — accuracy not yet measured
  • High-fat diet exposure in Dsg2mut/mut mice dramatically elevates myocardial levels of adiponectin (AdipoQ) and fibroblast growth factor 1 (FGF1).

    “high-fat diet (HFD) exposure in Dsg2mut/mut mice dramatically elevates myocardial levels of adiponectin (AdipoQ) and fibroblast growth factor 1 (FGF1) [35].”

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Authors
Centner, A. M., Shiel, E. A., Farra, W., Cannon, E. N., Landim-Vieira, M., Salazar, G., & Chelko, S. P.
Affiliations
Florida State University (US)
Corresponding author
  • Centner, Ann M.
  • Chelko, Stephen P.
Venue
Nutrients
Publisher
MDPI AG
Published
2024-06-29
Volume
16
Issue
13
Pages
2087
ISSN
2072-6643 (ISSN-L)
OpenAlex
W4400210913
Cited by
8
References
82
Citations by year
2026: 4 · 2025: 4
FWCI
2.41
Type
journal article
Language
en
Open access
Locations
  • Nutrients (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • American Heart Association Career Development Award (19CDA34760185, 204000-544-046752)
  • FSU Research Foundation Award (19CDA34760185, 204000-544-046752)
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiovascular Effects of Exercise
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiomyopathy and Myosin Studies
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac electrophysiology and arrhythmias
Keywords
arrhythmogenic cardiomyopathy, high-fat diet, myocarditis, cardiac dysfunction, cardiac remodeling, ejection fraction, HDL cholesterol, adiponectin, fibroblast growth factor 1, myocardial fibrosis, cardiac arrhythmias
MeSH terms
Animals, Disease Models, Animal, Fibrosis, Inflammation, Male, Mice, Inbred C57BL, Cardiomyopathies, Myocarditis, Myocardium, Arrhythmogenic Right Ventricular Dysplasia, Ventricular Remodeling, Desmoglein 2, Mice, Adiponectin, Diet, High-Fat

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