Cited by 563Adipose Tissue and MetabolismAdipokines, Inflammation, and Metabolic DiseasesExercise and Physiological Responses

The effects of acute and chronic exercise on PGC ‐1α, irisin and browning of subcutaneous adipose tissue in humans

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Norheim, Frode, Langleite, Torgrim Mikal, Hjorth, Marit, Holen, Torgeir, Kielland, Anders, Stadheim, Hans Kristian, Gulseth, Hanne Løvdal, Birkeland, Kåre Inge +2 more·2014·The FEBS Journal

Abstract

Irisin was first identified as a peroxisome proliferator-activated receptor γ co-activator-1α (PGC-1α) dependent myokine with the potential to induce murine brown-fat-like development of white adipose tissue. In humans, the regulatory effect of training on muscle FNDC5 mRNA expression and subsequently irisin levels in plasma is more controversial. We recruited 26 inactive men (13 normoglycaemic and normal weight, controls; and 13 slightly hyperglycaemic and overweight, pre-diabetes group) aged 40-65 years for a 12-week intervention of combined endurance and strength training with four sessions of training per week. Before and after the 12-week intervention period, participants were exposed to an acute endurance workload of 45 min at 70% of VO(2max), and muscle biopsies were taken prior to and after exercise. Skeletal muscle mRNA for PGC1A and FNDC5 correlated and both PGC1A and FNDC5 mRNA levels increased after 12 weeks of training in both control and pre-diabetes subjects. Circulating irisin was reduced in response to 12 weeks of training, and was increased acutely (~1.2-fold) just after acute exercise. Plasma concentration of irisin was higher in pre-diabetes subjects compared with controls. There was little effect of 12 weeks of training on selected browning genes in subcutaneous adipose tissue. UCP1 mRNA did not correlate with FNDC5 expression in subcutaneous adipose tissue or skeletal muscle or with irisin levels in plasma. We observed no enhancing effect of long-term training on circulating irisin levels, and little or no effect of training on browning of subcutaneous white adipose tissue in humans.

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Authors
Norheim, F., Langleite, T. M., Hjorth, M., Holen, T., Kielland, A., Stadheim, H. K., Gulseth, H. L., Birkeland, K. I., Jensen, J., & Drevon, C. A.
Affiliations
  • University of Oslo (NO)
  • Norwegian School of Sport Sciences (NO)
  • Oslo University Hospital (NO)
Corresponding author
Norheim, Frode
Venue
The FEBS Journal
Publisher
Wiley
Published
2013-12-10
Volume
281
Issue
3
Pages
739-749
ISSN
  • 1742-464X (ISSN-L)
  • 1742-4658
OpenAlex
W2117031630
Cited by
563
References
41
Citations by year
2026: 23 · 2025: 27 · 2024: 39 · 2023: 45 · 2022: 60 · 2021: 51 · 2020: 58 · 2019: 34 · 2018: 53 · 2017: 44 · 2016: 32 · 2015: 53 · 2014: 40 · 2013: 3
FWCI
29.64
Type
journal article
Language
en
Open access
Locations
  • FEBS Journal (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • European Commission (289511)
  • Direktør Throne Holsts Fond For Ernæringsforskning
Topics
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
  • Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
  • Health Sciences › Medicine › Rehabilitation › Exercise and Physiological Responses
Keywords
irisin, PGC-1α, FNDC5, white adipose tissue browning, subcutaneous adipose tissue, endurance training, resistance training, acute exercise, prediabetes, UCP1, myokines, skeletal muscle gene expression
MeSH terms
Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha, Uncoupling Protein 1, Adult, Aged, Fibronectins, Humans, Ion Channels, Male, Middle Aged, Motor Activity, Physical Endurance, Pigments, Biological, Prediabetic State, RNA, Messenger, Transcription Factors, Transcription, Genetic, Exercise, Body Mass Index, Muscle, Skeletal, Mitochondrial Proteins, Overweight, Subcutaneous Fat, Abdominal, Resistance Training

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