Cited by 31Cardiovascular Health and Disease PreventionCardiovascular Function and Risk FactorsNitric Oxide and Endothelin Effects

Impact of dietary nitrate on age-related diastolic dysfunction

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Rammos, Christos, Hendgen-Cotta, Ulrike B., Totzeck, Matthias, Pohl, Julia, Lüdike, Peter, Flögel, Ulrich, Deenen, René, Köhrer, Karl +4 more·2016·European Journal of Heart Failure

Abstract

AIMS: Diastolic dysfunction is highly prevalent, and ageing is the main contributor due to impairments in active cardiac relaxation, ventriculo-vascular stiffening, and endothelial dysfunction. Nitric oxide (NO) affects cardiovascular functions, and NO bioavailability is critically reduced with ageing. Whether replenishment of NO deficiency with dietary inorganic nitrate would offer a novel approach to reverse age-related cardiovascular alterations was not known. METHODS AND RESULTS: A dietary nitrate supplementation was applied to young (6 month) and old (20 month) wild-type mice for 8 weeks and compared with controls. High-resolution ultrasound, pressure-volume catheter techniques, and isolated heart measurements were applied to assess cardiac diastolic and vascular functions. Cardiac manganese-enhanced magnetic resonance imaging was performed to study the effects of dietary nitrate on myocyte calcium handling. In aged mice with preserved systolic function, dietary nitrate supplementation improved LV diastolic function, arterial compliance, and coronary flow reserve. Mechanistically, improved cardiovascular functions were associated with an accelerated cardiomyocyte calcium handling and augmented NO/cyclic guanosine monophosphate/protein kinase G signalling, while enhanced nitrate reduction was related to age-related differences in the oral microbiome. CONCLUSION: Dietary inorganic nitrate reverses age-related LV diastolic dysfunction and improves vascular functions. Our results highlight the potential of a dietary approach in the therapy of age-related cardiovascular alterations.

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  1. Yang L, Liu G, Zakharov SI, Bellinger AM, Mongillo M, Marx SO. Protein kinase G phosphorylates Cav1.2 alpha1c and beta2 subunits. Circ Res 2007;101:465-474.
  2. Fujinaga K, Taniguchi Y, Sun Y, Katayama S, Minami J, Matsushita O, Okabe A. Analysis of genes involved in nitrate reduction in Clostridium perfringens. Microbiology 1999;145:3377-3387.

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Authors
Rammos, C., Hendgen-Cotta, U. B., Totzeck, M., Pohl, J., Lüdike, P., Flögel, U., Deenen, R., Köhrer, K., French, B. A., Gödecke, A., Kelm, M., & Rassaf, T.
Affiliations
  • Essen University Hospital (DE)
  • Heinrich Heine University Düsseldorf (DE)
  • University of Virginia (US)
  • Düsseldorf University Hospital (DE)
Corresponding author
Rassaf, Tienush
Venue
European Journal of Heart Failure
Published
2016-04-26
Volume
18
Issue
6
Pages
599-610
ISSN
  • 1388-9842 (ISSN-L)
  • 1879-0844
OpenAlex
W2343168506
Cited by
31
References
50
Citations by year
2026: 1 · 2025: 6 · 2024: 1 · 2023: 1 · 2022: 1 · 2021: 4 · 2020: 5 · 2019: 2 · 2018: 3 · 2017: 1 · 2016: 4
FWCI
2.75
Type
journal article
Language
en
Open access
Locations
  • European Journal of Heart Failure (publishedVersion)
  • PubMed (publishedVersion)
  • Universitätsbibliographie, Universität Duisburg-Essen (submittedVersion)
Funders
  • German Research Foundation (RA969/4-2], Ra969/7-2)
  • Heine-Heine-University Forschungskommission
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiovascular Health and Disease Prevention
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiovascular Function and Risk Factors
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
Keywords
dietary nitrate, inorganic nitrate supplementation, diastolic dysfunction, aging, nitric oxide bioavailability, left ventricular diastolic function, arterial compliance, coronary flow reserve, cardiomyocyte calcium handling, oral microbiota, nitrate reduction, vascular function, aged mice
MeSH terms
Aging, Animals, Calcium, Coronary Vessels, Diastole, Echocardiography, Endothelium, Vascular, Hemodynamics, Magnetic Resonance Imaging, Male, Mouth, Nitrates, Ventricular Function, Left, Dietary Supplements, Myocytes, Cardiac, Mice, Vascular Stiffness, Microbiota

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