Cited by 51Muscle Physiology and DisordersCardiovascular and exercise physiologyNitric Oxide and Endothelin Effects

Incubation with sodium nitrite attenuates fatigue development in intact single mouse fibres at physiological

Open access
Bailey, Stephen J., Gandra, Paulo G., Jones, Andrew M., Hogan, Michael C., Nogueira, Leonardo·2019·The Journal of Physiology

Abstract

Key points Dietary nitrate supplementation increases plasma nitrite concentration, which provides an oxygen‐independent source of nitric oxide and can delay skeletal muscle fatigue. Nitrate supplementation has been shown to increase myofibre calcium release and force production in mouse skeletal muscle during contractions at a supra‐physiological oxygen tension, but it is unclear whether nitrite exposure can delay fatigue development and improve myofibre calcium handling at a near‐physiological oxygen tension. Single mouse muscle fibres acutely treated with nitrite had a lower force and cytosolic calcium concentration during single non‐fatiguing contractions at a near‐physiological oxygen tension. Nitrite treatment delayed fatigue development during repeated fatiguing isometric contractions at near‐physiological, but not at supra‐physiological, oxygen tension in combination with better maintenance of myofilament calcium sensitivity and sarcoplasmic reticulum calcium pumping. These findings improve understanding of the mechanisms by which increased skeletal muscle nitrite exposure might be ergogenic and imply that this is related to improved calcium handling. Abstract Dietary nitrate (NO3−) supplementation, which increases plasma nitrite (NO2−) concentration, has been reported to attenuate skeletal muscle fatigue development. Sarcoplasmic reticulum (SR) calcium (Ca2+) release is enhanced in isolated single skeletal muscle fibres following NO3− supplementation or NO2− incubation at a supra‐physiological but it is unclear whether NO2− incubation can alter Ca2+ handling and fatigue development at a near‐physiological . We hypothesised that NO2− treatment would improve Ca2+ handling and delay fatigue at a physiological in intact single mouse skeletal muscle fibres. Each muscle fibre was perfused with Tyrode solution pre‐equilibrated with either 20% ( ∼150 Torr) or 2% O2 ( = 15.6 Torr) in the absence and presence of 100 µM NaNO2. At supra‐physiological (i.e. 20% O2), time to fatigue was lowered by 34% with NaNO2 (control: 257 ± 94 vs. NaNO2: 159 ± 46 s, Cohen's d = 1.63, P < 0.05), but extended by 21% with NaNO2 at 2% O2 (control: 308 ± 217 vs. NaNO2: 368 ± 242 s, d = 1.14, P < 0.01). During the fatiguing contraction protocol completed with NaNO2 at 2% O2, peak cytosolic Ca2+ concentration ([Ca2+]c) was not different (P > 0.05) but [Ca2+]c accumulation between contractions was lower, concomitant with a greater SR Ca2+ pumping rate (P < 0.05) compared to the control condition. These results demonstrate that increased exposure to NO2− blunts fatigue development at near‐physiological, but not at supra‐physiological, through enhancing SR Ca2+ pumping rate in single skeletal muscle fibres. These findings extend our understanding of the mechanisms by which increased NO2− exposure can mitigate skeletal muscle fatigue development.

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 · 10.1113/jp278494

Cites

75 of 75 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?

  • During a repeated, fatigue-inducing contraction protocol, NaNO2 administration increased time to task failure by offsetting reductions in Ca2+ pumping rate and Ca2+ sensitivity.

    “However, during a repeated, fatigue-inducing contraction protocol, NaNO2 administration increased time to task failure by offsetting the reductions in Ca2+ pumping rate and Ca2+ sensitivity [135].”
  • The potential candidate mechanisms for improved weightlifting exercise performance after NO3− supplementation include enhanced excitation-contraction coupling via modulation of Ca2+-handling and contractile proteins; improved skeletal muscle metabolic control via lowering the high-energy phosphate cost of contraction and fatigue-related metabolite accumulation; and improved skeletal muscle PerfUSI

    “The potential candidate mechanisms for improved weightlifting exercise performance after NO3− supplementation include enhanced excitation–contraction coupling, via modulation of Ca2+-handling and contractile proteins [98,134,135,139]; improved skeletal muscle metabolic control, via lowering the high-energy phosphate cost of contraction and fatigue-related metabolite accumulation [51,94]; and”

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

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Bailey, S. J., Gandra, P. G., Jones, A. M., Hogan, M. C., & Nogueira, L.
Affiliations
  • Loughborough University (GB)
  • Universidade Estadual de Campinas (UNICAMP) (BR)
  • University of Exeter (GB)
  • University of California San Diego (US)
  • Universidade Federal do Rio de Janeiro (BR)
Corresponding author
Nogueira, Leonardo
Venue
The Journal of Physiology
Publisher
Wiley
Published
2019-10-30
Volume
597
Issue
22
Pages
5429-5443
ISSN
  • 0022-3751 (ISSN-L)
  • 1469-7793
OpenAlex
W2974403411
Cited by
51
References
75
Citations by year
2026: 3 · 2025: 3 · 2024: 5 · 2023: 13 · 2022: 10 · 2021: 6 · 2020: 9 · 2019: 2
FWCI
2.23
Type
journal article
Language
en
Open access
Locations
  • The Journal of Physiology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • Open Research Exeter (University of Exeter) (acceptedVersion)
  • Figshare (submittedVersion)
  • Figshare (submittedVersion, cc-by-nc-nd)
  • VUBIR (Vrije Universiteit Brussel) (submittedVersion)
Funders
  • University of Exeter
  • National Institute of Arthritis and Musculoskeletal and Skin Diseases (AR, ‐, 069577)
  • Ministério da Ciência, Tecnologia e Inovação
  • Conselho Nacional de Desenvolvimento Científico e Tecnológico
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
  • Health Sciences › Medicine › Complementary and alternative medicine › Cardiovascular and exercise physiology
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
Keywords
sodium nitrite, nitrate supplementation, skeletal muscle fatigue, sarcoplasmic reticulum calcium handling, myofilament calcium sensitivity, oxygen partial pressure, nitric oxide, single muscle fibers, ergogenic effects, sarcopenia prevention, sarcopenic obesity
MeSH terms
Animals, Calcium, Male, Mice, Inbred C57BL, Muscle Contraction, Myofibrils, Nitric Oxide, Oxygen, Sarcoplasmic Reticulum, Sodium Nitrite, Muscle Fibers, Skeletal, Muscle Fatigue, Mice, Sarcoplasmic Reticulum Calcium-Transporting ATPases

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