Evidence map›Paper›PMID 25886402›Full record

ArticlePloS one2015

The single nucleotide polymorphism Gly482Ser in the PGC-1α gene impairs exercise-induced slow-twitch muscle fibre transformation in humans.

Peter Steinbacher, René G Feichtinger, Lyudmyla Kedenko, Igor Kedenko, Sandra Reinhardt, Anna-Lena Schönauer, Isabella Leitner, Alexandra M Sänger, Walter Stoiber, Barbara Kofler and 3 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 3 pooled it
1.7field-weighted citation impact, top 16% 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

16 citing papers in PubMed, 3 syntheses or guidelines pooled it, 31 citations in OpenAlex.

  1. Association between theFrontiers in physiology · 2025
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  5. Role of theGenes · 2024
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  11. Genes · 2020
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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

13 authors at 3 institutions in 1 country.

Peter SteinbacherDepartment of Cell Biology, Paris Lodron-University of Salzburg, Salzburg, Austria.
René G FeichtingerResearch Program for Receptor Biochemistry and Tumor Metabolism, Department of Pedicatrics, Paracelsus Medical University of Salzburg, Salzburg, Austria.
Lyudmyla KedenkoFirst Department of Internal Medicine, Paracelsus Medical University of Salzburg, Salzburg, Austria.
Igor KedenkoFirst Department of Internal Medicine, Paracelsus Medical University of Salzburg, Salzburg, Austria.
Sandra ReinhardtDepartment of Cell Biology, Paris Lodron-University of Salzburg, Salzburg, Austria.
Anna-Lena SchönauerDepartment of Cell Biology, Paris Lodron-University of Salzburg, Salzburg, Austria.
Isabella LeitnerDepartment of Cell Biology, Paris Lodron-University of Salzburg, Salzburg, Austria.
Alexandra M SängerDepartment of Cell Biology, Paris Lodron-University of Salzburg, Salzburg, Austria.
Walter StoiberDepartment of Cell Biology, Paris Lodron-University of Salzburg, Salzburg, Austria.
Barbara KoflerResearch Program for Receptor Biochemistry and Tumor Metabolism, Department of Pedicatrics, Paracelsus Medical University of Salzburg, Salzburg, Austria.
Holger FörsterMedical Office in Pediatrics and Sports Medicine, Salzburg, Austria.
Bernhard PaulweberFirst Department of Internal Medicine, Paracelsus Medical University of Salzburg, Salzburg, Austria.
Susanne Ring-DimitriouDepartment of Sport Science and Kinesiology, Paris Lodron-University of Salzburg, Hallein, Austria.
University of Salzburg · ATParacelsus Medical University · ATUnfallkrankenhaus Salzburg · AT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

PGC-1α (peroxisome proliferator-activated receptor γ co-activator 1α) is an important regulator of mitochondrial biogenesis and a master regulator of enzymes involved in oxidative phosphorylation. Recent evidence demonstrated that the Gly482Ser single nucleotide polymorphism (SNP) in the PGC-1α gene affects insulin sensitivity, blood lipid metabolism and binding to myocyte enhancer factor 2 (MEF2). Individuals carrying this SNP were shown to have a reduced cardiorespiratory fitness and a higher risk to develop type 2 diabetes. Here, we investigated the responses of untrained men with the Gly482Ser SNP to a 10 week programme of endurance training (cycling, 3 x 60 min/week, heart rate at 70-90% VO2peak). Quantitative data from analysis of biopsies from vastus lateralis muscle revealed that the SNP group, in contrast to the control group, lacked a training-induced increase in content of slow contracting oxidative fibres. Capillary supply, mitochondrial density, mitochondrial enzyme activities and intramyocellular lipid content increased similarly in both groups. These results indicate that the impaired binding of MEF2 to PGC-1α in humans with this SNP impedes exercise-induced fast-to-slow muscle fibre transformation.

Indexed as

Polymorphism, Single NucleotideAdultExerciseHumansMaleMEF2 Transcription FactorsMuscle Fibers, Slow-TwitchMuscle, SkeletalPeroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alphaPhysical EnduranceTranscription FactorsMEF2 Transcription FactorsPeroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alphaPPARGC1A protein, humanTranscription Factors

Identifiers

PMID25886402
PMCPMC4401702
OpenAlexW2077084368

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Registered trials

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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.