Cited by 293Exercise and Physiological ResponsesAntioxidant Activity and Oxidative StressMuscle metabolism and nutrition

Supplementation with vitamins C and E inhibits the release of interleukin-6 from contracting human skeletal muscle

Fischer, Christian P., Hiscock, Natalie J., Penkowa, Milena, Basu, Samar, Vessby, Bengt, Kallner, Anders, Sjöberg, Lars‐Börje, Pedersen, Bente K.·2004·The Journal of Physiology

Abstract

Contracting human skeletal muscle is a major contributor to the exercise-induced increase of plasma interleukin-6 (IL-6). Although antioxidants have been shown to attenuate the exercise-induced increase of plasma IL-6, it is unknown whether antioxidants inhibit transcription, translation or translocation of IL-6 within contracting human skeletal muscle. Using a single-blind placebo-controlled design with randomization, young healthy men received an oral supplementation with either a combination of ascorbic acid (500 mg day(-1)) and RRR-alpha-tocopherol (400 i.u. day(-1)) (Treatment, n= 7), or placebo (Control, n= 7). After 28 days of supplementation, the subjects performed 3 h of dynamic two-legged knee-extensor exercise at 50% of their individual maximal power output. Muscle biopsies from vastus lateralis were obtained at rest (0 h), immediately post exercise (3 h) and after 3 h of recovery (6 h). Leg blood flow was measured using Doppler ultrasonography. Plasma IL-6 concentration was measured in blood sampled from the femoral artery and vein. The net release of IL-6 was calculated using Fick's principle. Plasma vitamin C and E concentrations were elevated in Treatment compared to Control. Plasma 8-iso-prostaglandin F(2alpha), a marker of lipid peroxidation, increased in response to exercise in Control, but not in Treatment. In both Control and Treatment, skeletal muscle IL-6 mRNA and protein levels increased between 0 and 3 h. In contrast, the net release of IL-6 from the leg, which increased during exercise with a peak at 3.5 h in Control, was completely blunted during exercise in Treatment. The arterial plasma IL-6 concentration from 3 to 4 h, when the arterial IL-6 levels peaked in both groups, was approximately 50% lower in the Treatment group compared to Control (Treatment versus Control: 7.9 pg ml(-1), 95% confidence interval (CI) 6.0-10.7 pg ml(-1), versus 19.7 pg ml(-1), CI 13.8-29.4 pg ml(-1), at 3.5 h, P < 0.05 between groups). Moreover, plasma interleukin-1 receptor antagonist (IL-1ra), C-reactive protein and cortisol levels all increased after the exercise in Control, but not in Treatment. In conclusion, our results show that supplementation with vitamins C and E attenuated the systemic IL-6 response to exercise primarily via inhibition of the IL-6 protein release from the contracting skeletal muscle per se.

Integrity signals

Registry

Crossref · 10.1113/jphysiol.2004.066779

Cites

48 of 48 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

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?

  • Antioxidant supplementation totally inhibited the release of IL-6 from exercising human muscle as well as the exercise-induced increase in systemic levels of cortisol.

    “Moreover, antioxidant supplementation totally inhibited the release of IL-6 from exercising human muscle as well as the exercise-induced increase in systemic levels of cortisol (206).”

    From Muscle–Organ Crosstalk: The Emerging Roles of Myokines (2020) · cites this paper as [206]

Cites

1 retracted

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Fischer, C. P., Hiscock, N. J., Penkowa, M., Basu, S., Vessby, B., Kallner, A., Sjöberg, L., & Pedersen, B. K.
Affiliations
  • Copenhagen University Hospital (DK)
  • Copenhagen Muscle Research Centre (DK)
  • University of Copenhagen (DK)
  • Uppsala University (SE)
  • Karolinska University Hospital (SE)
Venue
The Journal of Physiology
Publisher
Wiley
Published
2004-07
Volume
558
Issue
2
Pages
633-645
ISSN
  • 0022-3751 (ISSN-L)
  • 1469-7793
OpenAlex
W1812661065
Cited by
293
References
48
Citations by year
2026: 8 · 2025: 7 · 2024: 6 · 2023: 11 · 2022: 24 · 2021: 7 · 2020: 8 · 2019: 8 · 2018: 6 · 2017: 10 · 2016: 15 · 2015: 17 · 2014: 17 · 2013: 22 · 2012: 17
FWCI
15.59
Type
journal article
Language
en
Open access
closed
Locations
  • The Journal of Physiology (publishedVersion)
  • PubMed (publishedVersion)
  • Research at the University of Copenhagen (University of Copenhagen) (submittedVersion)
Funders
  • Velux Stiftung
  • Augustinus Fonden
Topics
  • Health Sciences › Medicine › Rehabilitation › Exercise and Physiological Responses
  • Health Sciences › Medicine › Biochemistry › Antioxidant Activity and Oxidative Stress
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Muscle metabolism and nutrition
Keywords
interleukin-6, vitamin C, vitamin E, antioxidants, skeletal muscle contraction, alpha-tocopherol, lipid peroxidation, 8-isoprostane, vastus lateralis, knee extension exercise, interleukin-1 receptor antagonist, C-reactive protein, cortisol, muscle blood flow
MeSH terms
Adult, Antioxidants, Ascorbic Acid, Blood Glucose, C-Reactive Protein, Humans, Hydrocortisone, Male, Muscle Contraction, Sialoglycoproteins, Vitamin E, Lipid Peroxidation, Exercise, Interleukin-6, Gene Expression, Muscle, Skeletal, Interleukin 1 Receptor Antagonist Protein

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