Evidence map›Paper›PMID 31427706›Full record

ArticleScientific reports2019

Purine metabolism in sprint- vs endurance-trained athletes aged 20‒90 years.

Jacek Zieliński, Ewa M Slominska, Magdalena Król-Zielińska, Zbigniew Krasiński, Krzysztof Kusy

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 1 pooled it
3.0field-weighted citation impact, top 9% 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

27 citing papers in PubMed, 1 synthesis or guideline pooled it, 39 citations in OpenAlex.

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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

5 authors at 4 institutions in 2 countries.

Jacek ZielińskiDepartment of Athletics Strength and Conditioning, Poznan University of Physical Education, ul. Królowej Jadwigi 27/39, 61-871, Poznań, Poland. jacekzielinski@wp.pl.
Ewa M SlominskaDepartment of Biochemistry, Medical University of Gdansk, ul. Dębinki 1, 80-211, Gdańsk, Poland.
Magdalena Król-ZielińskaDepartment of Physical Education and Lifelong Sports, Poznan University of Physical Education, ul. Królowej Jadwigi 27/39, 61-871, Poznań, Poland.ORCID http://orcid.org/0000-0003-1809-4319
Zbigniew KrasińskiDepartment of Vascular and Endovascular Surgery, Angiology and Phlebology, Poznan University of Medical Sciences, ul. Długa 1/2, 60-848, Poznań, Poland.
Krzysztof KusyDepartment of Athletics Strength and Conditioning, Poznan University of Physical Education, ul. Królowej Jadwigi 27/39, 61-871, Poznań, Poland.
Gdańsk Medical University · PLHungarian University of Sports Science · HUPoznan University of Medical Sciences · PLUniversity School of Physical Education in Kraków · PL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Purine metabolism is crucial for efficient ATP resynthesis during exercise. The aim of this study was to assess the effect of lifelong exercise training on blood purine metabolites in ageing humans at rest and after exhausting exercise. Plasma concentrations of hypoxanthine (Hx), xanthine (X), uric acid (UA) and the activity of erythrocyte hypoxanthine-guanine phosphoribosyl transferase (HGPRT) were measured in 55 sprinters (SP, 20‒90 years), 91 endurance runners (ER, 20‒81 years) and 61 untrained participants (UT, 21‒69 years). SP had significantly lower levels of plasma purine metabolites and higher erythrocyte HGPRT activity than ER and UT. In all three groups, plasma purine levels (except UA in UT) significantly increased with age (1.8‒44.0% per decade). HGPRT activity increased in SP and ER (0.5‒1.0%), while it remained unchanged in UT. Hx and X concentrations increased faster with age than UA and HGPRT levels. In summary, plasma purine concentration increases with age, representing the depletion of skeletal muscle adenine nucleotide (AdN) pool. In highly-trained athletes, this disadvantageous effect is compensated by an increase in HGPRT activity, supporting the salvage pathway of the AdN pool restoration. Such a mechanism is absent in untrained individuals. Lifelong exercise, especially speed-power training, limits the age-related purine metabolism deterioration.

Indexed as

AdultAgedAged, 80 and overAthletesErythrocytesExercise TestHumansHypoxanthineHypoxanthine PhosphoribosyltransferaseMaleMiddle AgedMuscle, SkeletalPhysical Conditioning, AnimalPhysical EndurancePurinesRunningHypoxanthineHypoxanthine PhosphoribosyltransferasepurinePurinesXanthine

Identifiers

PMID31427706
PMCPMC6700101
OpenAlexW2969400793

What OpenQuestion holds

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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.