Cited by 673Exercise and Physiological ResponsesCardiovascular and exercise physiologyMuscle metabolism and nutrition

Evidence that interleukin-6 is produced in human skeletal muscle during prolonged running

Open access
Ostrowski, K., Rohde, T., Zacho, M., Asp, S., Pedersen, B. K.·1998·The Journal of Physiology

Abstract

1. This study was performed to test the hypothesis that inflammatory cytokines are produced in skeletal muscle in response to prolonged intense exercise. Muscle biopsies and blood samples were collected from runners before, immediately after, and 2 h after a marathon race. 2. The concentration of interleukin (IL)-6 protein in plasma increased from 1.5 +/- 0.7 to 94.4 +/- 12.6 pg ml-1 immediately post-exercise and to 22.1 +/- 3.8 pg ml-1 2 h post-exercise. IL-1 receptor antagonist (IL-1ra) protein in plasma increased from 123 +/- 23 to 2795 +/- 551 pg ml-1, and increased further to 4119 +/- 527 pg ml-1 2 h post-exercise. 3. The comparative polymerase chain reaction technique was used to evaluate mRNA for IL-6, IL-1ra, IL-1beta and tumour necrosis factor (TNF)-alpha in skeletal muscle and blood mononuclear cells (BMNC) (n = 8). Before exercise, mRNA for IL-6 could not be detected either in muscle or in BMNC, and was only detectable in muscle biopsies (5 out of 8) after exercise. Increased amounts of mRNA for IL-1ra were found in two muscle biopsies and five BMNC samples, and increased amounts of IL-1beta mRNA were found in one muscle and four BMNC samples after exercise. TNF-alpha mRNA was not detected in any samples. 4. This study suggests that exercise-induced destruction of muscle fibres in skeletal muscles may trigger local production of IL-6, which stimulates the production of IL-1ra from circulating BMNC.

Integrity signals

Registry

Crossref · 10.1111/j.1469-7793.1998.949bp.x

Cites

16 of 16 references verified0 citation errors · 0 not checkable

Statistics

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

Claims the paper makes

We couldn’t retrieve this paper’s full text, 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?

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Ostrowski, K., Rohde, T., Zacho, M., Asp, S., & Pedersen, B. K.
Affiliations
Rigshospitalet (DK)
Venue
The Journal of Physiology
Publisher
Wiley
Published
1998-05
Volume
508
Issue
3
Pages
949-953
ISSN
  • 0022-3751 (ISSN-L)
  • 1469-7793
OpenAlex
W2093845352
Cited by
673
References
16
Citations by year
2026: 12 · 2025: 12 · 2024: 14 · 2023: 26 · 2022: 27 · 2021: 33 · 2020: 27 · 2019: 25 · 2018: 28 · 2017: 23 · 2016: 24 · 2015: 32 · 2014: 22 · 2013: 34 · 2012: 27
FWCI
26.26
Type
journal article
Language
en
Open access
Locations
  • The Journal of Physiology (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
Danmarks Grundforskningsfond
Topics
  • Health Sciences › Medicine › Rehabilitation › Exercise and Physiological Responses
  • Health Sciences › Medicine › Complementary and alternative medicine › Cardiovascular and exercise physiology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Muscle metabolism and nutrition
Keywords
interleukin-6, skeletal muscle, prolonged exercise, marathon running, inflammatory cytokines, interleukin-1 receptor antagonist, IL-1β, TNF-α, muscle fiber damage, blood mononuclear cells, exercise-induced inflammation
MeSH terms
Adult, Biopsy, Creatine Kinase, Humans, Male, Physical Endurance, RNA, Messenger, Running, Sialoglycoproteins, Tumor Necrosis Factor-alpha, Interleukin-6, Muscle, Skeletal, Muscle Fibers, 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