Evidence map›Paper›PMID 24416310›Full record

ArticlePloS one2014

Role of IL-6 in exercise training- and cold-induced UCP1 expression in subcutaneous white adipose tissue.

Jakob G Knudsen, Maria Murholm, Andrew L Carey, Rasmus S Biensø, Astrid L Basse, Tamara L Allen, Juan Hidalgo, Bronwyn A Kingwell, Mark A Febbraio, Jacob B Hansen and 1 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 119 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
119citing papers in PubMed, 1 pooled it
10.1field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

119 citing papers in PubMed, 1 synthesis or guideline pooled it, 209 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Review
  5. Review
  6. Multidisciplinary Therapy to Target Obesity and Its Complications in Adult Population: A Narrative Review.Obesity reviews : an official journal of the International Association for the Study of Obesity · 2026
    Review
  7. Review
  8. Article
  9. Review
  10. Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. Review
  16. Review
  17. Skeletal Muscle as Endocrine Organ.Advances in experimental medicine and biology · 2025
    Review
  18. Review
  19. Review
  20. Review

59 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 3 institutions in 3 countries.

Jakob G KnudsenCentre of Inflammation and Metabolism, Department of Biology, University of Copenhagen, Copenhagen, Denmark.
Maria MurholmDepartment of Biology, University of Copenhagen, Copenhagen, Denmark ; Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark.
Andrew L CareyMetabolic and Vascular Physiology Laboratory, Baker IDI Heart and Diabetes Institute, Melbourne, Victoria, Australia.
Rasmus S BiensøCentre of Inflammation and Metabolism, Department of Biology, University of Copenhagen, Copenhagen, Denmark.
Astrid L BasseDepartment of Biology, University of Copenhagen, Copenhagen, Denmark ; Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark.
Tamara L AllenCellular and Molecular Metabolism Laboratory, Baker IDI Heart and Diabetes Institute, Melbourne, Victoria, Australia.
Juan HidalgoDepartment of Neuroscience, Universidad Autonoma de Barcelona, Barcelona, Spain.
Bronwyn A KingwellMetabolic and Vascular Physiology Laboratory, Baker IDI Heart and Diabetes Institute, Melbourne, Victoria, Australia.
Mark A FebbraioCellular and Molecular Metabolism Laboratory, Baker IDI Heart and Diabetes Institute, Melbourne, Victoria, Australia.
Jacob B HansenDepartment of Biology, University of Copenhagen, Copenhagen, Denmark.
Henriette PilegaardCentre of Inflammation and Metabolism, Department of Biology, University of Copenhagen, Copenhagen, Denmark.
University of Copenhagen · DKBaker Heart and Diabetes Institute · AUUniversitat Autònoma de Barcelona · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Expression of brown adipose tissue (BAT) associated proteins like uncoupling protein 1 (UCP1) in inguinal WAT (iWAT) has been suggested to alter iWAT metabolism. The aim of this study was to investigate the role of interleukin-6 (IL-6) in exercise training and cold exposure-induced iWAT UCP1 expression. The effect of daily intraperitoneal injections of IL-6 (3 ng/g) in C57BL/6 mice for 7 days on iWAT UCP1 expression was examined. In addition, the expression of UCP1 in iWAT was determined in response to 3 days of cold exposure (4°C) and 5 weeks of exercise training in wild type (WT) and whole body IL-6 knockout (KO) mice. Repeated injections of IL-6 in C57BL/6 mice increased UCP1 mRNA but not UCP1 protein content in iWAT. Cold exposure increased iWAT UCP1 mRNA content similarly in IL-6 KO and WT mice, while exercise training increased iWAT UCP1 mRNA in WT mice but not in IL-6 KO mice. Additionally, a cold exposure-induced increase in iWAT UCP1 protein content was blunted in IL-6 KO mice, while UCP1 protein content in iWAT was lower in both untrained and exercise trained IL-6 KO mice than in WT mice. In conclusion, repeated daily increases in plasma IL-6 can increase iWAT UCP1 mRNA content and IL-6 is required for an exercise training-induced increase in iWAT UCP1 mRNA content. In addition IL-6 is required for a full induction of UCP1 protein expression in response to cold exposure and influences the UCP1 protein content iWAT of both untrained and exercise trained animals.

Indexed as

Cold TemperatureGene Expression RegulationPhysical Conditioning, AnimalAnimalsInterleukin-6Ion ChannelsMaleMiceMice, Inbred C57BLMitochondrial ProteinsOrgan SpecificityPhosphorylationSTAT3 Transcription FactorSubcutaneous FatUncoupling Protein 1Interleukin-6Ion ChannelsMitochondrial ProteinsSTAT3 Transcription FactorUcp1 protein, mouseUncoupling Protein 1

Identifiers

PMID24416310
PMCPMC3885654
OpenAlexW2044843840

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.