Evidence map›Paper›PMID 31707475›Full record

ArticleEuropean journal of applied physiology2020

The impact of acute and chronic exercise on Nrf2 expression in relation to markers of mitochondrial biogenesis in human skeletal muscle.

Hashim Islam, Jacob T Bonafiglia, Patrick C Turnbull, Craig A Simpson, Christopher G R Perry, Brendon J Gurd

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Article in European journal of applied physiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
–field-weighted citation impact
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

21 citing papers in PubMed.

  1. Trial
  2. Review
  3. Review
  4. Article
  5. Antioxidants (Basel, Switzerland) · 2025
    Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. The Role of Nrf2 in Skeletal Muscle on Exercise Capacity.Antioxidants (Basel, Switzerland) · 2021
    Article
  16. Article
  17. Molecules (Basel, Switzerland) · 2021
    Article
  18. Article
  19. Article
  20. Review
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

6 authors.

Hashim IslamSchool of Kinesiology and Health Studies, Queen's University, Kingston, ON, Canada.ORCID http://orcid.org/0000-0002-7145-0522
Jacob T BonafigliaSchool of Kinesiology and Health Studies, Queen's University, Kingston, ON, Canada.
Patrick C TurnbullSchool of Kinesiology and Health Science, York University, Toronto, ON, Canada.
Craig A SimpsonSchool of Kinesiology and Health Studies, Queen's University, Kingston, ON, Canada.
Christopher G R PerrySchool of Kinesiology and Health Science, York University, Toronto, ON, Canada.
Brendon J GurdSchool of Kinesiology and Health Studies, Queen's University, Kingston, ON, Canada. gurdb@queensu.ca.

Funding

Natural Sciences and Engineering Research Council of Canada 402635Natural Sciences and Engineering Research Council of Canada PGS-D
6 · The paper itself

Abstract

purposeTo examine the relationship between changes in nuclear factor erythroid 2-related factor 2 (Nrf2) expression and markers of mitochondrial biogenesis in acutely and chronically exercised human skeletal muscle.

methodsThe impact of acute submaximal endurance (END) and supramaximal interval (Tabata) cycling on the upregulation of Nrf2 (and its downstream targets), nuclear respiratory factor-1 (NRF-1) and mitochondrial transcription factor A (TFAM) mRNA expression was examined in healthy young males (n = 10). The relationship between changes in citrate synthase (CS) maximal activity and the protein content of Nrf2, heme oxygenase 1 (HO-1), NRF-1, and TFAM was also investigated following 4 weeks of Tabata in a separate group of males (n = 21).

resultsNrf2, NRF-1, and HO-1 mRNA expression increased after acute exercise (p < 0.05), whereas the increase in superoxide dismutase 2 (SOD2) mRNA expression approached significance (p = 0.08). Four weeks of Tabata increased CS activity and Nrf2, NRF-1, and TFAM protein content (p < 0.05), but decreased HO-1 protein content (p < 0.05). Training-induced changes in Nrf2 protein were strongly correlated with NRF-1 (r = 0.63, p < 0.01). When comparing protein content changes between individuals with the largest (HI: + 23%) and smallest (LO: - 1%) observed changes in CS activity (n = 8 each), increases in Nrf2 and TFAM protein content were apparent in the HI group only (p < 0.02) with medium-to-large effect sizes for between-group differences in changes in Nrf2 (η

conclusionAltogether, our findings support a potential role for Nrf2 in exercise-induced mitochondrial biogenesis in human skeletal muscle.

Indexed as

Organelle BiogenesisDNA-Binding ProteinsHeme Oxygenase-1HumansMaleMitochondrial ProteinsMitochondria, MuscleMuscle, SkeletalNF-E2-Related Factor 2Nuclear Respiratory Factor 1Physical Conditioning, HumanTranscription FactorsYoung AdultDNA-Binding ProteinsHeme Oxygenase-1Mitochondrial ProteinsNFE2L2 protein, humanNF-E2-Related Factor 2NRF1 protein, humanNuclear Respiratory Factor 1TFAM protein, humanTranscription FactorsMitochondrial contentModerate-intensity continuous trainingNFE2L2NRF-1Sprint interval trainingTFAM

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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.