Evidence map›Paper›PMID 30261929›Full record

ArticleJournal of the International Society of Sports Nutrition2018

Metabolomics profiling of xenobiotics in elite athletes: relevance to supplement consumption.

Fatima Al-Khelaifi, Ilhame Diboun, Francesco Donati, Francesco Botrè, Mohammed Alsayrafi, Costas Georgakopoulos, Noha A Yousri, Karsten Suhre, Mohamed A Elrayess

Open access · goldAbstract read
In one paragraph

Article in Journal of the International Society of Sports Nutrition, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 3 pooled it
1.5field-weighted citation impact, top 17% 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

16 citing papers in PubMed, 3 syntheses or guidelines pooled it, 39 citations in OpenAlex.

  1. Metabolomics analyses and physical interventions in soccer: a systematic review.Metabolomics : Official journal of the Metabolomic Society · 2024
    Pooled it
  2. Metabolomics in Exercise and Sports: A Systematic Review.Sports medicine (Auckland, N.Z.) · 2022
    Pooled it
  3. Pooled it
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  11. Future opportunities for the Athlete Biological Passport.Frontiers in sports and active living · 2022
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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

9 authors at 5 institutions in 3 countries.

Fatima Al-KhelaifiAnti Doping Laboratory Qatar, ADLQ, Sports City, P.O Box 27775, Doha, Qatar.
Ilhame DibounDepartment of Economics, Mathematics and Statistics, Birkbeck, University of London, WC1E 7HX, London, UK.
Francesco DonatiLaboratorio Antidoping, Federazione Medico Sportiva Italiana, Largo Giulio Onesti 1, 00197, Rome, Italy.
Francesco BotrèLaboratorio Antidoping, Federazione Medico Sportiva Italiana, Largo Giulio Onesti 1, 00197, Rome, Italy.
Mohammed AlsayrafiAnti Doping Laboratory Qatar, ADLQ, Sports City, P.O Box 27775, Doha, Qatar.
Costas GeorgakopoulosAnti Doping Laboratory Qatar, ADLQ, Sports City, P.O Box 27775, Doha, Qatar.
Noha A YousriDepartment of Genetic Medicine, Weill Cornell Medical College in Qatar, Qatar-Foundation, P.O. Box 24144, Doha, Qatar.
Karsten SuhreDepartment of Physiology and Biophysics, Weill Cornell Medical College in Qatar, Qatar-Foundation, P.O. Box 24144, Doha, Qatar.
Mohamed A ElrayessAnti Doping Laboratory Qatar, ADLQ, Sports City, P.O Box 27775, Doha, Qatar. melrayess@adlqatar.qa.ORCID http://orcid.org/0000-0003-3803-4604
Anti-Doping Laboratory · QAFederazione Medico Sportiva Italiana · ITThe Royal Free Hospital · GBWeill Cornell Medical College in Qatar · QABirkbeck, University of London · GB

Funding

Qatar National Research Fund NPRP7-272-1-041
6 · The paper itself

Abstract

backgroundSupplements are widely used among elite athletes to maintain health and improve performance. Despite multiple studies investigating use of dietary supplements by athletes, a comprehensive profiling of serum supplement metabolites in elite athletes is still lacking. This study aims to analyze the presence of various xenobiotics in serum samples from elite athletes of different sports, focusing on metabolites that potentially originate from nutritional supplements.

methodsProfiling of xenobiotics in serum samples from 478 elite athletes from different sports (football, athletics, cycling, rugby, swimming, boxing and rowing) was performed using non-targeted metabolomics-based mass spectroscopy combined with ultrahigh-performance liquid chromatography. Multivariate analysis was performed using orthogonal partial least squares discriminant analysis. Differences in metabolic levels among different sport groups were identified by univariate linear models.

resultsOut of the 102 detected xenobiotics, 21 were significantly different among sport groups including metabolites that potentially prolong exercise tolerance (caffeic acid), carry a nootropic effect (2-pyrrolidinone), exert a potent anti-oxidant effect (eugenol, ferulic acid 4 sulfate, thioproline, retinol), or originate from drugs for different types of injuries (ectoine, quinate). Using Gaussian graphical modelling, a metabolic network that links various sport group-associated xenobiotics was constructed to further understand their metabolic pathways.

conclusionsThis pilot data provides evidence that athletes from different sports exhibit a distinct xenobiotic profile that may reflect their drug/supplement use, diet and exposure to various chemicals. Because of limitation in the study design, replication studies are warranted to confirm results in independent data sets, aiming ultimately for better assessment of dietary supplement use by athletes.

Indexed as

Dietary SupplementsMetabolomicsAthletesChromatography, High Pressure LiquidFemaleHumansMaleSportsTandem Mass SpectrometryXenobioticsXenobioticsAthletesMetabolomicsNutritional supplementsSportXenobiotics

Identifiers

PMID30261929
PMCPMC6161339
OpenAlexW2892447761

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.