Evidence map›Paper›PMID 25180783›Full record

Trial reportPloS one2014

Exercise-induced norepinephrine decreases circulating hematopoietic stem and progenitor cell colony-forming capacity.

Julia M Kröpfl, Ingeborg Stelzer, Harald Mangge, Karin Pekovits, Robert Fuchs, Nathalie Allard, Lukas Schinagl, Peter Hofmann, Gottfried Dohr, Sandra Wallner-Liebmann and 2 more

Abstract readClinical Trial
In one paragraph

Trial report in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
–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

16 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Review
  10. Exercise and Cardiovascular Progenitor Cells.Comprehensive Physiology · 2019
    Review
  11. Article
  12. Article
  13. Epinephrine stimulates CXCL1 IL-1Physiological reports · 2017
    Article
  14. Article
  15. Article
  16. 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

12 authors.

Julia M KröpflInstitute of Human Movement Sciences and Sport, Exercise Physiology Lab, ETH Zurich, Zurich, Switzerland; Institute of Biophysics, Medical University of Graz, Graz, Austria.
Ingeborg StelzerClinical Institute of Medical and Chemical Laboratory Diagnostics, Research Unit on Lifestyle and Inflammation-associated Risk Biomarkers, Medical University of Graz, Graz, Austria; Institute for Pathophysiology and Immunology, Medical University of Graz, Graz, Austria.
Harald ManggeClinical Institute of Medical and Chemical Laboratory Diagnostics, Research Unit on Lifestyle and Inflammation-associated Risk Biomarkers, Medical University of Graz, Graz, Austria; BioTechMed-Graz, Karl-Franzens University & Technical University & Medical University of Graz, Graz, Austria.
Karin PekovitsDepartment of Ophthalmology, Medical University of Graz, Graz, Austria.
Robert FuchsInstitute for Pathophysiology and Immunology, Medical University of Graz, Graz, Austria.
Nathalie AllardInstitute for Pathophysiology and Immunology, Medical University of Graz, Graz, Austria.
Lukas SchinaglClinical Institute of Medical and Chemical Laboratory Diagnostics, Research Unit on Lifestyle and Inflammation-associated Risk Biomarkers, Medical University of Graz, Graz, Austria; Institute for Pathophysiology and Immunology, Medical University of Graz, Graz, Austria.
Peter HofmannInstitute of Sports Science, Karl-Franzens University of Graz, Graz, Austria.
Gottfried DohrInstitute of Cell Biology, Histology and Embryology, Medical University of Graz, Graz, Austria.
Sandra Wallner-LiebmannInstitute for Pathophysiology and Immunology, Medical University of Graz, Graz, Austria.
Wolfgang DomejDepartment of Pulmonology, Medical University of Graz, Graz, Austria.
Wolfram MüllerInstitute of Biophysics, Medical University of Graz, Graz, Austria.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A recent study showed that ergometry increased circulating hematopoietic stem and progenitor cell (CPC) numbers, but reduced hematopoietic colony forming capacity/functionality under normoxia and normobaric hypoxia. Herein we investigated whether an exercise-induced elevated plasma free/bound norepinephrine (NE) concentration could be responsible for directly influencing CPC functionality. Venous blood was taken from ten healthy male subjects (25.3+/-4.4 yrs) before and 4 times after ergometry under normoxia and normobaric hypoxia (FiO2<0.15). The circulating hematopoietic stem and progenitor cell numbers were correlated with free/bound NE, free/bound epinephrine (EPI), cortisol (Co) and interleukin-6 (IL-6). Additionally, the influence of exercise-induced NE and blood lactate (La) on CPC functionality was analyzed in a randomly selected group of subjects (n = 6) in vitro under normoxia by secondary colony-forming unit granulocyte macrophage assays. Concentrations of free NE, EPI, Co and IL-6 were significantly increased post-exercise under normoxia/hypoxia. Ergometry-induced free NE concentrations found in vivo showed a significant impairment of CPC functionality in vitro under normoxia. Thus, ergometry-induced free NE was thought to trigger CPC mobilization 10 minutes post-exercise, but as previously shown impairs CPC proliferative capacity/functionality at the same time. The obtained results suggest that an ergometry-induced free NE concentration has a direct negative effect on CPC functionality. Cortisol may further influence CPC dynamics and functionality.

Indexed as

Colony-Forming Units AssayExerciseAdultAntigens, CD34Blood Cell CountCell HypoxiaCell ProliferationEpinephrineErgometryHematopoietic Stem CellsHumansHydrocortisoneInterleukin-6LactatesLeukocyte Common AntigensMaleAntigens, CD34EpinephrineHydrocortisoneInterleukin-6LactatesLeukocyte Common AntigensNorepinephrine

Identifiers

PMID25180783
PMCPMC4152172

What OpenQuestion holds

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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.