Evidence map›Paper›PMID 23505561›Full record

ArticlePloS one2013

Proteomic profiling of bronchoalveolar lavage fluid in critically ill patients with ventilator-associated pneumonia.

Elizabeth V Nguyen, Sina A Gharib, Steven J Palazzo, Yu-hua Chow, David R Goodlett, Lynn M Schnapp

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 1 pooled it
1.6field-weighted citation impact, top 16% 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

28 citing papers in PubMed, 1 synthesis or guideline pooled it, 40 citations in OpenAlex.

  1. Pooled it
  2. Therapeutic Potential ofFood science & nutrition · 2026
    Article
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  14. Article
  15. Combined Use of Three Machine Learning Modeling Methods to Develop a Ten-Gene Signature for the Diagnosis of Ventilator-Associated Pneumonia.Medical science monitor : international medical journal of experimental and clinical research · 2020
    Article
  16. Article
  17. Biomarkers in Pneumonia-Beyond Procalcitonin.International journal of molecular sciences · 2019
    Review
  18. Article
  19. Article
  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 2 institutions in 1 country.

Elizabeth V NguyenDepartment of Medicinal Chemistry, University of Washington, Seattle, Washington, United States of America.
Sina A Gharib
Steven J Palazzo
Yu-hua Chow
David R Goodlett
Lynn M Schnapp
University of Washington · USSeattle University · US

Funding

Variation in Human Innate ImmunityU54AI057141 · NIAID · UNIVERSITY OF WASHINGTON · PI STETSON, DANIEL B · 2003 to 2013
$102.3M
INSTITUTE FOR TRANSLATIONAL HEALTH SCIENCE (UL1): BPCAUL1RR025014 · NCRR · UNIVERSITY OF WASHINGTON · PI DISIS, MARY L. · 2007 to 2011
$51.5M
Matrix remodeling in the lung during HIV infectionR01HL083481 · NHLBI · UNIVERSITY OF WASHINGTON · PI SCHNAPP, LYNN M · 2005 to 2009
$1.9M
NCRR NIH HHS 1S10RR-449017262NCRR NIH HHS UL1 RR025014NCRR NIH HHS UL1RR025014NHLBI NIH HHS HL083481NHLBI NIH HHS K24HL068796NHLBI NIH HHS R01 HL083481NIAID NIH HHS 1U54 447 AI57141NIAID NIH HHS U54 AI057141
6 · The paper itself

Abstract

rationaleVentilator-associated pneumonia (VAP) is a common complication in patients with acute lung injury (ALI) and can lead to increased morbidity and mortality. Identifying protein profiles specific to VAP in bronchoalveolar lavage fluid (BALF) may aid in earlier diagnosis, elucidate mechanisms of disease, and identify putative targets for therapeutic intervention.

methodsBALF was obtained from 5 normal subjects and 30 ALI patients: 14 with VAP (VAP(+)) and 16 without VAP (VAP(-)). Each sample underwent shotgun proteomic analysis based on tandem mass spectrometry. Differentially expressed proteins between the groups were identified using statistical methods based on spectral counting. Mechanisms of disease were explored using functional annotation and protein interaction network analysis. Supervised classification algorithms were implemented to discover a proteomic classifier for identifying critically ill patients with VAP.

resultsALI patients had distinct BALF proteomic profiles compared to normal controls. Within the ALI group, we identified 76 differentially expressed proteins between VAP(+) and VAP(-). Functional analysis of these proteins suggested activation of pro-inflammatory pathways during VAP. We identified and validated a limited proteomic signature that discriminated VAP(+) from VAP(-) patients comprised of three proteins: S100A8, lactotransferrin (LTF), and actinin 1 (ACTN1).

conclusionsCombining proteomic with computational analyses is a powerful approach to study the BALF proteome during lung injury and development of VAP. This integrative methodology is a promising strategy to differentiate clinically relevant subsets of ALI patients, including those suffering from VAP.

Indexed as

ProteomeProteomicsAdultAgedAged, 80 and overBronchoalveolar Lavage FluidCase-Control StudiesCluster AnalysisCritical IllnessFemaleGene Expression RegulationHumansMaleMiddle AgedPneumonia, Ventilator-AssociatedProtein Interaction MappingProteome

Identifiers

PMID23505561
PMCPMC3591362
OpenAlexW2075505244

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.