Evidence map›Paper›PMID 33512586›Full record

ArticleEuropean journal of applied physiology2021

Changes in gastrointestinal cell integrity after marathon running and exercise-associated collapse.

Edward Walter, Oliver R Gibson, Michael Stacey, Neil Hill, Iain T Parsons, David Woods

Abstract read
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In one paragraph

Article in European journal of applied physiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 3 pooled it
2.2field-weighted citation impact, top 13% 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

29 citing papers in PubMed, 3 syntheses or guidelines pooled it, 29 citations in OpenAlex.

  1. Guideline
  2. Pooled it
  3. Pooled it
  4. Hydrating with a higher-fructose sport drink does not worsen acute kidney injury risk during simulated work-related heat stress.American journal of physiology. Regulatory, integrative and comparative physiology · 2026
    Trial
  5. Trial
  6. Trial
  7. Trial
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Biomarkers of organ stress and injury following the Boston Marathon.Journal of applied physiology (Bethesda, Md. : 1985) · 2025
    Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Critical illness aspects of heatstroke: A hot topic.Journal of the Intensive Care Society · 2023
    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 at 5 institutions in 1 country.

Edward WalterIntensive Care Unit, Royal Surrey County Hospital, Egerton Road, Guildford, Surrey, GU2 7XX, UK. ewalter@nhs.net.ORCID http://orcid.org/0000-0003-0127-708X
Oliver R GibsonCentre for Human Performance, Exercise and Rehabilitation (CHPER), Division of Sport, Health and Exercise Sciences, Brunel University London, Kingston Lane, Uxbridge, UB8 3PH, UK.
Michael StaceyDepartment of Surgery and Cancer, Imperial College London, London, UK.
Neil HillDepartment of Endocrinology and Diabetes, Imperial College Healthcare NHS Trust, London, UK.
Iain T ParsonsAcademic Department of Military Medicine, Research and Clinical Innovation, Royal Centre for Defence Medicine, Birmingham, UK.
David WoodsAcademic Department of Military Medicine, Research and Clinical Innovation, Royal Centre for Defence Medicine, Birmingham, UK.
Royal Navy · GBBrunel University of London · GBImperial College Healthcare NHS Trust · GBKing's College London · GBRoyal Surrey County Hospital · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeEndurance exercise and hyperthermia are associated with compromised intestinal permeability and endotoxaemia. The presence of intestinal fatty acid-binding protein (I-FABP) in the systemic circulation suggests intestinal wall damage, but this marker has not previously been used to investigate intestinal integrity after marathon running.

methodsTwenty-four runners were recruited as controls prior to completing a standard marathon and had sequential I-FABP measurements before and on completion of the marathon, then at four and 24 h later. Eight runners incapacitated with exercise-associated collapse (EAC) with hyperthermia had I-FABP measured at the time of collapse and 1 hour later.

resultsI-FABP was increased immediately on completing the marathon (T0; 2593 ± 1373 ng·l

conclusionI-FABP is a recently described biomarker whose presence in the circulation is associated with intestinal wall damage. I-FABP levels increase after marathon running and increase further if the endurance exercise is associated with EAC and hyperthermia. After EAC, I-FABP remains high in the circulation for an extended period, suggesting ongoing intestinal wall stress.

Indexed as

AdultBiomarkersFatty Acid-Binding ProteinsFemaleHeat ExhaustionHumansHyperthermiaIntestinal MucosaMaleMarathon RunningMiddle AgedBiomarkersFABP2 protein, humanFatty Acid-Binding ProteinsAthletesFatty acid-binding proteinGastrointestinal tractHeat stress

Identifiers

PMID33512586
OpenAlexW3123186886

What OpenQuestion holds

Textmetadata
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.