Cited by 218Cardiovascular Health and Disease PreventionNitric Oxide and Endothelin EffectsCardiovascular Function and Risk Factors

Nitrite supplementation reverses vascular endothelial dysfunction and large elastic artery stiffness with aging: Sodium nitrite and vascular dysfunction with aging

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Sindler, Amy L., Fleenor, Bradley S., Calvert, John W., Marshall, Kurt D., Zigler, Melanie L., Lefer, David J., Seals, Douglas R.·2011·Aging Cell

Abstract

We tested the hypothesis that short-term nitrite therapy reverses vascular endothelial dysfunction and large elastic artery stiffening with aging, and reduces arterial oxidative stress and inflammation. Nitrite concentrations were lower (P < 0.05) in arteries, heart, and plasma of old (26-28 month) male C57BL6 control mice, and 3 weeks of sodium nitrite (50 mg L(-1) in drinking water) restored nitrite levels to or above young (4-6 month) controls. Isolated carotid arteries of old control mice had lower acetylcholine (ACh)-induced endothelium-dependent dilation (EDD) (71.7 ± 6.1% vs. 93.0 ± 2.0%) mediated by reduced nitric oxide (NO) bioavailability (P < 0.05 vs. young), and sodium nitrite restored EDD (95.5 ± 1.6%) by increasing NO bioavailability. 4-Hydroxy-2,2,6,6-tetramethylpiperidine 1-oxyl (TEMPOL), a superoxide dismutase (SOD) mimetic, apocynin, a nicotinamide adenine dinucleotide phosphate-oxidase (NADPH) inhibitor, and sepiapterin (exogenous tetrahydrobiopterin) each restored EDD to ACh in old control, but had no effect in old nitrite-supplemented mice. Old control mice had increased aortic pulse wave velocity (478 ± 16 vs. 332 ± 12 AU, P < 0.05 vs. young), which nitrite supplementation lowered (384 ± 27 AU). Nitrotyrosine, superoxide production, and expression of NADPH oxidase were ∼100-300% greater and SOD activity was ∼50% lower in old control mice (all P < 0.05 vs. young), but were ameliorated by sodium nitrite treatment. Inflammatory cytokines were markedly increased in old control mice (P < 0.05), but reduced to levels of young controls with nitrite supplementation. Short-term nitrite therapy reverses age-associated vascular endothelial dysfunction, large elastic artery stiffness, oxidative stress, and inflammation. Sodium nitrite may be a novel therapy for treating arterial aging in humans.

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Crossref · 10.1111/j.1474-9726.2011.00679.x

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  • Pre-clinical studies with nitrate or nitrite show the potential to protect against ischaemia-reperfusion injury and reduce arterial stiffness, inflammation and intimal thickness.

    “Pre-clinical studies with nitrate or nitrite also show the potential to protect against ischaemia-reperfusion injury and reduce arterial stiffness, inflammation and intimal thickness.”

    From Vascular effects of dietary nitrate (as found in green leafy vegetables and beetroot) via the nitrate-nitrite-nitric oxide pathway (2013) · cites this paper as [150]

    The Introduction reports that sodium nitrite protects against ischaemia-reperfusion injury, and the Discussion reports reduced large-artery stiffness and inflammatory markers in old mice. Our copy does not report a reduction in intimal thickness; that part of the claim is unsupported. (LLM, conf=0.87)

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  • Sindler et al. found that nitrite reduced the elevated pulse wave velocity and levels of inflammatory cytokines IL-1b, IL6, INFg and TNFa.

    “Thus, Sindler et al. found that nitrite reduced the elevated pulse wave velocity and levels of inflammatory cytokines IL-1b, IL6, INFg and TNFa [150].”
  • Sindler et al. found decreased plasma nitrite concentrations in old male C57BL6 control mice, depleted in arteries and heart, which were restored to youthful levels by 3 weeks' supplementation with sodium nitrite (50 mg l-1 in the drinking water).

    “Sindler et al. also detected depleted concentrations in the arteries and heart, which were restored to youthful levels (4-6 month controls) by 3 weeks' supplementation with sodium nitrite (50 mg l -1 in the drinking water) [150].”
  • While the efficacy of dietary nitrate to reduce systemic blood pressure in older age has been extensively studied, relatively few studies have assessed the effects of nitrate supplementation on exercise capacity in healthy older individuals.

    “While the efficacy of dietary NO 3 -to reduce systemic blood pressure in older age has been extensively studied (reviewed in 140; see also 139, 142), relatively few studies have assessed the effects of NO 3 -supplementation on exercise capacity in healthy older individuals.”

    From Dietary Nitrate and Physical Performance (2018) · cites this paper as [142]

    Split into 2 atoms — 0 confirmed, 0 partially supported, 0 disputed, 0 misattributed, 2 unverifiable. Expand the claim to see per-atom verdicts.

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  • Oral supplementation with either nitrite or nitrate increases circulating nitrite levels and prevents and reverses endothelial dysfunction in a dose-dependent manner in mice and in healthy, hypertensive, and obese individuals, or in those with hypercholesterolemia and peripheral arterial disease.

    “Oral supplementation with either nitrite or nitrate increases circulating nitrite levels and prevents and reverses endothelial dysfunction in a dose-dependent manner both in mice[68,69] and in healthy[70,71,97,111,112], hypertensive[113], and obese individuals[114], or in those with hypercholesterolemia[115] and peripheral arterial disease[116].”

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Authors
Sindler, A. L., Fleenor, B. S., Calvert, J. W., Marshall, K. D., Zigler, M. L., Lefer, D. J., & Seals, D. R.
Affiliations
  • University of Colorado Boulder (US)
  • Emory University (US)
Venue
Aging Cell
Publisher
Wiley
Published
2011-03-31
Volume
10
Issue
3
Pages
429-437
ISSN
1474-9718 (ISSN-L)
OpenAlex
W1559904992
Cited by
218
References
56
Citations by year
2026: 3 · 2025: 5 · 2024: 11 · 2023: 8 · 2022: 12 · 2021: 17 · 2020: 16 · 2019: 15 · 2018: 14 · 2017: 17 · 2016: 19 · 2015: 23 · 2014: 22 · 2013: 11 · 2012: 17
FWCI
12.54
Type
journal article
Language
en
Open access
Locations
  • Aging Cell (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institute on Aging (AG-000279, R37AG013038, R01AG013038, AG-013038, T32AG000279)
  • National Heart, Lung, and Blood Institute (R01HL098481, HL007822, R01HL093579, T32HL007822, HL092141, R01HL092141, HL093579)
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiovascular Health and Disease Prevention
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiovascular Function and Risk Factors
Keywords
nitrite supplementation, sodium nitrite, endothelial dysfunction, arterial stiffness, aging, nitric oxide bioavailability, oxidative stress, inflammation, NADPH oxidase, superoxide, tempol, apocynin, sepiapterin, pulse wave velocity, carotid artery, nitrotyrosine, inflammatory cytokines, arterial aging
MeSH terms
Acetophenones, Acetylcholine, Administration, Oral, Aging, Animals, Biopterins, Carotid Arteries, Cyclic N-Oxides, Elasticity, Endothelium, Vascular, Humans, Male, Myography, Nitric Oxide, Sodium Nitrite, Spin Labels, Superoxide Dismutase, Vasodilation, Vasodilator Agents, Cytokines, Oxidative Stress, NADPH Oxidases, Mice

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