Evidence map›Paper›PMID 36949963›Full record

ArticleERJ open research2023

Validation of volatile metabolites of pulmonary oxidative injury: a bench to bedside study.

Dominic Fenn, Thijs A Lilien, Laura A Hagens, Marry R Smit, Nanon F L Heijnen, Anita M Tuip-de Boer, Anne H Neerincx, Korneliusz Golebski, Dennis C J J Bergmans, Ronny M Schnabel and 4 more

Open access · goldAbstract read
In one paragraph

Article in ERJ open research, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.3field-weighted citation impact, top 22% 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

9 citing papers in PubMed, 17 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

14 authors at 2 institutions in 1 country.

Dominic FennAmsterdam UMC location University of Amsterdam, Department of Pulmonary Medicine, Amsterdam, Netherlands.
Thijs A LilienAmsterdam UMC location University of Amsterdam, Laboratory of Experimental Intensive Care and Anaesthesiology, Amsterdam, Netherlands.
Laura A HagensAmsterdam UMC location University of Amsterdam, Department of Intensive Care, Amsterdam, Netherlands.ORCID https://orcid.org/0000-0003-4629-4465
Marry R SmitAmsterdam UMC location University of Amsterdam, Department of Intensive Care, Amsterdam, Netherlands.
Nanon F L HeijnenDepartment of Intensive Care, Maastricht University Medical Center+, Maastricht, The Netherlands.
Anita M Tuip-de BoerAmsterdam UMC location University of Amsterdam, Laboratory of Experimental Intensive Care and Anaesthesiology, Amsterdam, Netherlands.
Anne H NeerincxAmsterdam UMC location University of Amsterdam, Department of Pulmonary Medicine, Amsterdam, Netherlands.ORCID https://orcid.org/0000-0002-4533-486X
Korneliusz GolebskiAmsterdam UMC location University of Amsterdam, Department of Pulmonary Medicine, Amsterdam, Netherlands.
Dennis C J J BergmansDepartment of Intensive Care, Maastricht University Medical Center+, Maastricht, The Netherlands.ORCID https://orcid.org/0000-0002-4224-6426
Ronny M SchnabelDepartment of Intensive Care, Maastricht University Medical Center+, Maastricht, The Netherlands.ORCID https://orcid.org/0000-0001-8410-332X
Marcus J SchultzAmsterdam UMC location University of Amsterdam, Department of Intensive Care, Amsterdam, Netherlands.ORCID https://orcid.org/0000-0003-3969-7792
Anke H Maitland-van der ZeeAmsterdam UMC location University of Amsterdam, Department of Pulmonary Medicine, Amsterdam, Netherlands.
Paul BrinkmanAmsterdam UMC location University of Amsterdam, Department of Pulmonary Medicine, Amsterdam, Netherlands.ORCID https://orcid.org/0000-0003-4546-8478
Lieuwe D J BosAmsterdam UMC location University of Amsterdam, Department of Pulmonary Medicine, Amsterdam, Netherlands.ORCID https://orcid.org/0000-0003-2911-4549
Amsterdam Neuroscience · NLMaastricht University · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Changes in exhaled volatile organic compounds (VOCs) can be used to discriminate between respiratory diseases, and increased concentrations of hydrocarbons are commonly linked to oxidative stress. However, the VOCs identified are inconsistent between studies, and translational studies are lacking. Methods: In this bench to bedside study, we captured VOCs in the headspace of A549 epithelial cells after exposure to hydrogen peroxide (H Results: In the cell, headspace octane concentration was decreased after oxidative stress (p=0.0013), while the other VOCs were not affected. 2-ethyl-1-hexanol showed an increased concentration in the headspace of cells undergoing oxidative stress in untargeted analysis (p=0.00014 Conclusion: Despite a comprehensive translational approach, validation of known and novel volatile biomarkers of oxidative stress was not possible in patients at risk of pulmonary oxidative injury. The inconsistencies observed highlight the difficulties faced in VOC biomarker validation, and that caution is warranted in the interpretation of the pathophysiological origin of discovered exhaled breath biomarkers.

Identifiers

PMID36949963
PMCPMC10026006
OpenAlexW4311472518

What OpenQuestion holds

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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.