Evidence map›Paper›PMID 27506464›Full record

ArticleRespiratory research2016

Pseudomonas aeruginosa colonization enhances ventilator-associated pneumonia-induced lung injury.

Tzyy-Bin Tsay, Yu-Zhen Jiang, Ching-Mei Hsu, Lee-Wei Chen

Open access · goldAbstract read
In one paragraph

Article in Respiratory research, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.7field-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

12 citing papers in PubMed, 24 citations in OpenAlex.

  1. Kaempferol MitigatesPharmaceuticals (Basel, Switzerland) · 2025
    Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Perspectives on theToxins · 2021
    Review
  8. Article
  9. Virulent Pseudomonas aeruginosa infection converts antimicrobial amyloids into cytotoxic prions.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2020
    Article
  10. Article
  11. Thorax · 2019
    Article
  12. Observational
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

4 authors at 3 institutions in 1 country.

Tzyy-Bin TsayDepartment of Surgery, Kaohsiung Armed Forces General Hospital Zuoying Branch, Kaohsiung, Taiwan.
Yu-Zhen JiangDepartment of Biological Sciences, National Sun Yat-Sen University, Kaohsiung, Taiwan.
Ching-Mei HsuDepartment of Biological Sciences, National Sun Yat-Sen University, Kaohsiung, Taiwan.
Lee-Wei ChenDepartment of Surgery, Kaohsiung Veterans General Hospital, 386, Ta-Chung 1st Road, Kaohsiung, Taiwan. chenlw2001@yahoo.com.tw.ORCID 0000-0002-3583-1248
National Sun Yat-sen University · TWKaohsiung Armed Forces General Hospital · TWNational Yang Ming Chiao Tung University · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPseudomonas aeruginosa (PA) is the single-most common pathogen of ventilator-associated pneumonia (VAP). Large quantities of PA in the trachea of ventilated patients are associated with an increased risk of death. However, the role of PA colonization in PA VAP-induced lung injury remains elusive. This study examined the effect and mechanism of PA colonization in VAP-induced lung injury.

methodsC57BL/6 wild-type (WT) and c-Jun N-terminal kinase knockout (JNK1(-/-)) mice received mechanical ventilation for 3 h at 2 days after receiving nasal instillation of PA (1 × 10(6) colony forming unit) or normal saline.

resultsIntranasal instillation of PA or mechanical ventilation induced the expression of interleukin-6 (IL-6) in the lungs. Phospho-JNK protein expression in the lungs was significantly increased in mice receiving mechanical ventilation after PA instillation as compared with those receiving ventilation alone. Mechanical ventilation after PA instillation significantly increased the expression of tumor necrosis factor-α (TNF-α), IL-1β, and macrophage inflammatory protein-2 (MIP-2) proteins; neutrophil sequestration; and TNF-α, IL-1β, and IL-6 levels in the lungs of WT mice, but not in JNK1(-/-) mice.

conclusionPA colonization plays an important role in PA VAP-induced lung injury through the induction of JNK1-mediated inflammation. PA-induced VAP causes lung injury through JNK signaling pathway in the lungs. JNK inhibition in ICU patients with higher percentages of PA colonization may reduce VAP-induced lung injury and mortality.

Indexed as

AnimalsBronchoalveolar Lavage FluidChemokine CXCL2Disease Models, AnimalInterleukin-1betaInterleukin-6LungMice, Inbred C57BLMice, KnockoutMitogen-Activated Protein Kinase 8Neutrophil InfiltrationPhosphorylationPneumonia, Ventilator-AssociatedPseudomonas aeruginosaPseudomonas InfectionsTumor Necrosis Factor-alphaChemokine CXCL2Cxcl2 protein, mouseIL1B protein, mouseInterleukin-1betaInterleukin-6interleukin-6, mouseMitogen-Activated Protein Kinase 8Tumor Necrosis Factor-alphaIL-1βIL-6Mechanical ventilationNeutrophilTNF-α

Identifiers

PMID27506464
PMCPMC4979138
OpenAlexW2507124529

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.