Evidence map›Paper›PMID 37439906›Full record

ArticleEuropean journal of applied physiology2024

Combined effects of green tea supplementation and eccentric exercise on nuclear factor erythroid 2-related factor 2 activity.

Josh Thorley, Craig Thomas, Nicolas Thon, Hannah Nuttall, Neil R W Martin, Nicolette Bishop, Stephen J Bailey, Tom Clifford

Abstract read
In one paragraph

Article in European journal of applied physiology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

4 citing papers in PubMed.

  1. Article
  2. Article
  3. Antioxidants (Basel, Switzerland) · 2025
    Article
  4. 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

8 authors.

Josh ThorleySchool of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, LE11 3TU, UK.ORCID http://orcid.org/0009-0007-4450-7283
Craig ThomasSchool of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, LE11 3TU, UK.
Nicolas ThonSchool of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, LE11 3TU, UK.
Hannah NuttallSchool of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, LE11 3TU, UK.
Neil R W MartinSchool of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, LE11 3TU, UK.ORCID http://orcid.org/0000-0002-1988-047X
Nicolette BishopSchool of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, LE11 3TU, UK.ORCID http://orcid.org/0000-0001-6221-3907
Stephen J BaileySchool of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, LE11 3TU, UK.ORCID http://orcid.org/0000-0003-0923-6362
Tom CliffordSchool of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, LE11 3TU, UK. t.clifford@lboro.ac.uk.ORCID http://orcid.org/0000-0003-0484-2953

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis study investigated whether combining eccentric exercise and green tea supplementation synergistically increased nuclear factor erythroid 2-related factor 2 (NRF2) activity, a transcription factor responsible for coordinating endogenous antioxidant expression.

methodsIn a double-blinded, randomized, between-subjects design, 24 males (mean [SD]; 23 [3] years, 179.6 [6.1] cm, 78.8 [10.6] kg) performed 100 drop jumps following a 6 days supplementation period with either green tea (poly)phenols (n = 12; 500 mg·d

resultsExercise did not increase NRF2/ARE binding (p = 0.12) (fold change vs rest: green tea = [post] 0.78 ± 0.45, [1 h] 1.17 ± 0.54, [24 h] 1.06 ± 0.56; placebo = [post] 1.40 ± 1.50, [1 h] 2.98 ± 3.70, [24 h] 1.04 ± 0.45). Furthermore, CAT activity (p = 0.12) and 8-OHdG excretion (p = 0.42) were unchanged in response to exercise and were not augmented by green tea supplementation (p > 0.05 for all). Exercise increased GR activity by 30% (p = 0.01), however no differences were found between supplement groups (p = 0.51). Leukocyte and neutrophil concentrations were only elevated post-exercise (p < 0.001 for all).

conclusionEccentric exercise, either performed alone or in conjunction with green tea supplementation, did not significantly increase NRF2 activity in PBMCs. TRIAL REGISTRATION NUMBER: osf.io/kz37g (registered: 15/09/21).

Indexed as

NF-E2-Related Factor 2TeaAntioxidantsDietary SupplementsHumansLeukocytes, MononuclearMaleOxidative StressAntioxidantsNF-E2-Related Factor 2TeaAntioxidantsExerciseOxidative stressPolyphenolsRedox balance

Identifiers

PMID37439906
PMCPMC10786739

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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.