Evidence map›Paper›PMID 29339749›Full record

ArticleScientific reports2018

Volatile molecules from bronchoalveolar lavage fluid can 'rule-in' Pseudomonas aeruginosa and 'rule-out' Staphylococcus aureus infections in cystic fibrosis patients.

Mavra Nasir, Heather D Bean, Agnieszka Smolinska, Christiaan A Rees, Edith T Zemanick, Jane E Hill

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
3.2field-weighted citation impact, top 8% 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

29 citing papers in PubMed, 52 citations in OpenAlex.

  1. Article
  2. Frontiers in immunology · 2026
    Article
  3. Profiling of Volatile Metabolites ofInternational journal of molecular sciences · 2025
    Article
  4. Article
  5. Frontiers in immunology · 2025
    Review
  6. Volatile biomarkers of Gram-positive bacteria of clinical relevance as a tool for infection diagnosis.International microbiology : the official journal of the Spanish Society for Microbiology · 2024
    Article
  7. Review
  8. Review
  9. Article
  10. Review
  11. Review
  12. Article
  13. Review
  14. Article
  15. Review
  16. Bacterial Interactions withMicroorganisms · 2021
    Review
  17. Molecular Mechanisms ofFrontiers in cellular and infection microbiology · 2021
    Review
  18. Article
  19. Review
  20. Article
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 4 institutions in 2 countries.

Mavra NasirGeisel School of Medicine, Dartmouth College, 1 Rope Ferry Road, Hanover, NH, 03755, United States.ORCID http://orcid.org/0000-0002-0969-5967
Heather D BeanSchool of Life Sciences, Arizona State University, 427 East Tyler Mall, Tempe, AZ, 85287, United States.
Agnieszka SmolinskaNUTRIM School of Nutrition and Translational Research in Metabolism, Department of Pharmacology and Toxicology, Maastricht University, Maastricht, The Netherlands.
Christiaan A ReesGeisel School of Medicine, Dartmouth College, 1 Rope Ferry Road, Hanover, NH, 03755, United States.ORCID http://orcid.org/0000-0003-1896-5348
Edith T ZemanickSchool of Medicine, Colorado Anschutz Medical Campus and Children's Hospital Colorado, Department of Pediatrics, 13123 E 16th Avenue, Aurora, CO, 80045, United States.
Jane E HillGeisel School of Medicine, Dartmouth College, 1 Rope Ferry Road, Hanover, NH, 03755, United States. jane.e.hill@dartmouth.edu.
Dartmouth College · USArizona State University · USChildren's Hospital Colorado · USMaastricht University · NL

Funding

SYNERGY: The Dartmouth Center for clinical and Translational ScienceUL1TR001086 · NCATS · DARTMOUTH COLLEGE · PI GREEN, ALAN I · 2013 to 2017
$18.3M
Quantitative Biomedical Sciences at DartmouthT32LM012204 · NLM · DARTMOUTH COLLEGE · PI TOSTESON, TOR D · 2016 to 2020
$876k
Airway Microbiome in Cystic Fibrosis Pulmonary ExacerbationsK23HL114883 · NHLBI · UNIVERSITY OF COLORADO DENVER · PI ZEMANICK, EDITH TOWLER · 2014 to 2017
$615k
NCATS NIH HHS UL1 TR001086NHLBI NIH HHS K23 HL114883NLM NIH HHS T32 LM012204
6 · The paper itself

Abstract

Respiratory infections caused by Pseudomonas aeruginosa and Staphylococcus aureus are the leading cause of morbidity and mortality in cystic fibrosis (CF) patients. The authors aimed to identify volatile biomarkers from bronchoalveolar lavage (BAL) samples that can guide breath biomarker development for pathogen identification. BAL samples (n = 154) from CF patients were analyzed using two-dimensional gas chromatography time-of-flight mass spectrometry. Random Forest was used to select suites of volatiles for identifying P. aeruginosa-positive and S. aureus-positive samples using multiple infection scenarios and validated using test sets. Using nine volatile molecules, we differentiated P. aeruginosa-positive (n = 7) from P. aeruginosa-negative (n = 53) samples with an area under the receiver operating characteristic curve (AUROC) of 0.86 (95% CI 0.71-1.00) and with positive and negative predictive values of 0.67 (95% CI 0.38-0.75) and 0.92 (95% CI 0.88-1.00), respectively. We were also able to discriminate S. aureus-positive (n = 15) from S. aureus-negative (n = 45) samples with an AUROC of 0.88 (95% CI 0.79-1.00) using eight volatiles and with positive and negative predictive values of 0.86 (95% CI 0.61-0.96) and 0.70 (95% CI 0.61-0.75), respectively. Prospective validation of identified biomarkers as screening tools in patient breath may lead to clinical application.

Indexed as

AdolescentAdultArea Under CurveBiomarkersBronchoalveolar Lavage FluidChildChild, PreschoolCystic FibrosisFemaleGas Chromatography-Mass SpectrometryHumansMalePseudomonas aeruginosaRespiratory Tract InfectionsROC CurveStaphylococcus aureusBiomarkersVolatile Organic Compounds

Identifiers

PMID29339749
PMCPMC5770459
OpenAlexW2783716508

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.