Evidence map›Paper›PMID 39241004›Full record

ArticleAmerican journal of physiology. Regulatory, integrative and comparative physiology2024

Strenuous training combined with erythropoietin induces red cell volume expansion-mediated hypervolemia and alters systemic and skeletal muscle iron homeostasis.

Benjamin J Ryan, David E Barney, Julie L McNiff, Devin J Drummer, Emily E Howard, Jess A Gwin, Christopher T Carrigan, Nancy E Murphy, Marques A Wilson, Stefan M Pasiakos and 2 more

Abstract read
In one paragraph

Article in American journal of physiology. Regulatory, integrative and comparative physiology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Article
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

12 authors.

Benjamin J RyanThermal and Mountain Medicine Division, United States Army Research Institute of Environmental Medicine, Natick, Massachusetts, United States.ORCID 0000-0001-5848-6988
David E BarneyMilitary Nutrition Division, United States Army Research Institute of Environmental Medicine, Natick, Massachusetts, United States.
Julie L McNiffMilitary Nutrition Division, United States Army Research Institute of Environmental Medicine, Natick, Massachusetts, United States.
Devin J DrummerMilitary Nutrition Division, United States Army Research Institute of Environmental Medicine, Natick, Massachusetts, United States.ORCID 0000-0002-8003-562X
Emily E HowardMilitary Nutrition Division, United States Army Research Institute of Environmental Medicine, Natick, Massachusetts, United States.ORCID 0000-0001-7979-1236
Jess A GwinMilitary Nutrition Division, United States Army Research Institute of Environmental Medicine, Natick, Massachusetts, United States.ORCID 0000-0002-0210-7157
Christopher T CarriganMilitary Nutrition Division, United States Army Research Institute of Environmental Medicine, Natick, Massachusetts, United States.
Nancy E MurphyMilitary Nutrition Division, United States Army Research Institute of Environmental Medicine, Natick, Massachusetts, United States.
Marques A WilsonMilitary Nutrition Division, United States Army Research Institute of Environmental Medicine, Natick, Massachusetts, United States.
Stefan M PasiakosOffice of Dietary Supplements, United States Department of Health and Human Services, National Institutes of Health, Bethesda, Maryland, United States.
James P McClungMilitary Nutrition Division, United States Army Research Institute of Environmental Medicine, Natick, Massachusetts, United States.
Lee M MargolisMilitary Nutrition Division, United States Army Research Institute of Environmental Medicine, Natick, Massachusetts, United States.ORCID 0000-0002-0652-1304

Funding

Military Operational Medicine Research Program (MOMRP)
6 · The paper itself

Abstract

Strenuous physical training increases total blood volume (BV) through expansion of plasma volume (PV) and red cell volume (RCV). In contrast, exogenous erythropoietin (EPO) treatment increases RCV but decreases PV, rendering BV stable or slightly decreased. This study aimed to determine the combined effects of strenuous training and EPO treatment on BV and markers of systemic and muscle iron homeostasis. In this longitudinal study, eight healthy nonanemic males were treated with EPO (50 IU/kg body mass, three times per week, sc) across 28 days of strenuous training (4 days/wk, exercise energy expenditures of 1,334 ± 24 kcal/day) while consuming a controlled, energy-balanced diet providing 39 ± 4 mg/day iron. Before (PRE) and after (POST) intervention, BV compartments were measured using carbon monoxide rebreathing, and markers of iron homeostasis were assessed in blood and skeletal muscle (vastus lateralis). Training + EPO increased (

Indexed as

Erythrocyte VolumeErythropoietinHomeostasisIronMuscle, SkeletalAdultBiomarkersBlood VolumeErythropoiesisExerciseFerritinsHepcidinsHumansMalePlasma VolumeYoung AdultBiomarkersEPO protein, humanErythropoietinFerritinsHepcidinsIronblood volumeerythropoietinexercise trainingiron homeostasis

Identifiers

PMID39241004
PMCPMC11563636

What OpenQuestion holds

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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.