Evidence map›Paper›PMID 32305516›Full record

ArticleMolecular metabolism2020

Prior exercise in humans redistributes intramuscular GLUT4 and enhances insulin-stimulated sarcolemmal and endosomal GLUT4 translocation.

Jonas R Knudsen, Dorte E Steenberg, Janne R Hingst, Lorna R Hodgson, Carlos Henriquez-Olguin, Zhencheng Li, Bente Kiens, Erik A Richter, Jørgen F P Wojtaszewski, Paul Verkade and 1 more

Open access · goldAbstract read
In one paragraph

Article in Molecular metabolism, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 2 pooled it
2.4field-weighted citation impact, top 10% 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

23 citing papers in PubMed, 2 syntheses or guidelines pooled it, 47 citations in OpenAlex.

  1. Pooled it
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  3. Trial
  4. Review
  5. Article
  6. Exercise benefits in metabolism on cardiovascular disease.Frontiers in cardiovascular medicine · 2026
    Review
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  20. Insulin and cancer: a tangled web.The Biochemical journal · 2022
    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

11 authors at 2 institutions in 3 countries.

Jonas R KnudsenMolecular Physiology Section, Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, August Krogh Building, Universitetsparken 13, 2100, Copenhagen Oe, Denmark; Laboratory of Microsystems 2, Institute of Microengineering, Ecole Polytechnique Fédérale de Lausanne, Batiment BM, 1015, Lausanne, Switzerland.
Dorte E SteenbergMolecular Physiology Section, Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, August Krogh Building, Universitetsparken 13, 2100, Copenhagen Oe, Denmark.
Janne R HingstMolecular Physiology Section, Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, August Krogh Building, Universitetsparken 13, 2100, Copenhagen Oe, Denmark.
Lorna R HodgsonSchool of Biochemistry, University of Bristol, Biomedical Sciences Building, University Walk, BS8 1TD, Bristol, United Kingdom.
Carlos Henriquez-OlguinMolecular Physiology Section, Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, August Krogh Building, Universitetsparken 13, 2100, Copenhagen Oe, Denmark.
Zhencheng LiMolecular Physiology Section, Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, August Krogh Building, Universitetsparken 13, 2100, Copenhagen Oe, Denmark.
Bente KiensMolecular Physiology Section, Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, August Krogh Building, Universitetsparken 13, 2100, Copenhagen Oe, Denmark.
Erik A RichterMolecular Physiology Section, Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, August Krogh Building, Universitetsparken 13, 2100, Copenhagen Oe, Denmark.
Jørgen F P WojtaszewskiMolecular Physiology Section, Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, August Krogh Building, Universitetsparken 13, 2100, Copenhagen Oe, Denmark.
Paul VerkadeSchool of Biochemistry, University of Bristol, Biomedical Sciences Building, University Walk, BS8 1TD, Bristol, United Kingdom.
Thomas E JensenMolecular Physiology Section, Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, August Krogh Building, Universitetsparken 13, 2100, Copenhagen Oe, Denmark. Electronic address: tejensen@nexs.ku.dk.
University of Copenhagen · DKUniversity of Bristol · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveExercise is a cornerstone in the management of skeletal muscle insulin-resistance. A well-established benefit of a single bout of exercise is increased insulin sensitivity for hours post-exercise in the previously exercised musculature. Although rodent studies suggest that the insulin-sensitization phenomenon involves enhanced insulin-stimulated GLUT4 cell surface translocation and might involve intramuscular redistribution of GLUT4, the conservation to humans is unknown.

methodsHealthy young males underwent an insulin-sensitizing one-legged kicking exercise bout for 1 h followed by fatigue bouts to exhaustion. Muscle biopsies were obtained 4 h post-exercise before and after a 2-hour hyperinsulinemic-euglycemic clamp.

resultsA detailed microscopy-based analysis of GLUT4 distribution within seven different myocellular compartments revealed that prior exercise increased GLUT4 localization in insulin-responsive storage vesicles and T-tubuli. Furthermore, insulin-stimulated GLUT4 localization was augmented at the sarcolemma and in the endosomal compartments.

conclusionsAn intracellular redistribution of GLUT4 post-exercise is proposed as a molecular mechanism contributing to the insulin-sensitizing effect of prior exercise in human skeletal muscle.

Indexed as

AdultBiopsyEndosomesExerciseGlucoseGlucose Transporter Type 4HumansInsulinInsulin ResistanceMaleMicroscopy, FluorescenceMuscle, SkeletalSarcolemmaYoung AdultGlucoseGlucose Transporter Type 4InsulinSLC2A4 protein, humanExerciseGLUT4Insulin-resistanceInsulin sensitivitySkeletal muscle

Identifiers

PMID32305516
PMCPMC7240215
OpenAlexW3016930086

What OpenQuestion holds

Textmetadata
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.