Evidence map›Paper›PMID 33946997›Full record

ArticleMolecules (Basel, Switzerland)2021

Comparison of Targeted and Untargeted Approaches in Breath Analysis for the Discrimination of Lung Cancer from Benign Pulmonary Diseases and Healthy Persons.

Michalis Koureas, Dimitrios Kalompatsios, Grigoris D Amoutzias, Christos Hadjichristodoulou, Konstantinos Gourgoulianis, Andreas Tsakalof

Open access · goldAbstract read
In one paragraph

Article in Molecules (Basel, Switzerland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.4field-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

14 citing papers in PubMed, 20 citations in OpenAlex.

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  8. Analysis of endogenous metabolites using multifunctional derivatization and capillary RPLC-MS.Analytical methods : advancing methods and applications · 2022
    Article
  9. Analyses of lung cancer-derived volatiles in exhaled breath andExperimental biology and medicine (Maywood, N.J.) · 2022
    Review
  10. Article
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  12. Article
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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

6 authors at 1 institution in 1 country.

Michalis KoureasDepartment of Hygiene and Epidemiology, University Hospital of Larissa, Faculty of Medicine, University of Thessaly, 22 Papakyriazi Street, 41222 Larissa, Greece.
Dimitrios KalompatsiosDepartment of Hygiene and Epidemiology, University Hospital of Larissa, Faculty of Medicine, University of Thessaly, 22 Papakyriazi Street, 41222 Larissa, Greece.
Grigoris D AmoutziasBioinformatics Laboratory, Department of Biochemistry and Biotechnology, University of Thessaly, 41500 Larissa, Greece.ORCID 0000-0001-5961-964X
Christos HadjichristodoulouDepartment of Hygiene and Epidemiology, University Hospital of Larissa, Faculty of Medicine, University of Thessaly, 22 Papakyriazi Street, 41222 Larissa, Greece.
Konstantinos GourgoulianisRespiratory Medicine Department, University Hospital of Larissa, Faculty of Medicine, University of Thessaly, 41110 Larissa, Greece.ORCID 0000-0001-9541-1010
Andreas TsakalofDepartment of Hygiene and Epidemiology, University Hospital of Larissa, Faculty of Medicine, University of Thessaly, 22 Papakyriazi Street, 41222 Larissa, Greece.ORCID 0000-0003-4702-0394
University of Thessaly · GR

Funding

Stavros Niarchos Foundation(SNF) Project No.: 5394.02.07
6 · The paper itself

Abstract

The aim of the present study was to compare the efficiency of targeted and untargeted breath analysis in the discrimination of lung cancer (Ca+) patients from healthy people (HC) and patients with benign pulmonary diseases (Ca-). Exhaled breath samples from 49 Ca+ patients, 36 Ca- patients and 52 healthy controls (HC) were analyzed by an SPME-GC-MS method. Untargeted treatment of the acquired data was performed with the use of the web-based platform XCMS Online combined with manual reprocessing of raw chromatographic data. Machine learning methods were applied to estimate the efficiency of breath analysis in the classification of the participants. Results: Untargeted analysis revealed 29 informative VOCs, from which 17 were identified by mass spectra and retention time/retention index evaluation. The untargeted analysis yielded slightly better results in discriminating Ca+ patients from HC (accuracy: 91.0%, AUC: 0.96 and accuracy 89.1%, AUC: 0.97 for untargeted and targeted analysis, respectively) but significantly improved the efficiency of discrimination between Ca+ and Ca- patients, increasing the accuracy of the classification from 52.9 to 75.3% and the AUC from 0.55 to 0.82. Conclusions: The untargeted breath analysis through the inclusion and utilization of newly identified compounds that were not considered in targeted analysis allowed the discrimination of the Ca+ from Ca- patients, which was not achieved by the targeted approach.

Indexed as

BiomarkersAgedBreath TestsCase-Control StudiesDiagnosis, DifferentialDisease SusceptibilityExhalationFemaleGas Chromatography-Mass SpectrometryHumansLung DiseasesLung NeoplasmsMachine LearningMaleMiddle AgedRisk FactorsBiomarkersVolatile Organic Compoundsbreath analysiscancer biomarkersexhaled breathlung canceruntargeted analysisvolatile organic compoundsvolatolomics

Identifiers

PMID33946997
PMCPMC8125376
OpenAlexW3158605393

What OpenQuestion holds

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LicenceCC BY
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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.