Evidence map›Paper›PMID 26410792›Full record

ArticleRespiratory research2015

The lung response to ozone is determined by age and is partially dependent on toll-Like receptor 4.

Kelsa Gabehart, Kelly A Correll, Joan E Loader, Carl W White, Azzeddine Dakhama

Open access · goldAbstract read
In one paragraph

Article in Respiratory research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
1.0field-weighted citation impact, top 24% 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

8 citing papers in PubMed, 13 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Exposure of neonatal mice to bromine impairs their alveolar development and lung function.American journal of physiology. Lung cellular and molecular physiology · 2018
    Article
  6. Article
  7. Article
  8. Review
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

5 authors at 2 institutions in 1 country.

Kelsa GabehartDepartment of Pediatrics, National Jewish Health, 1400 Jackson Street, Denver, 80206, CO, USA.
Kelly A CorrellDepartment of Pediatrics, National Jewish Health, 1400 Jackson Street, Denver, 80206, CO, USA.
Joan E LoaderDepartment of Pediatrics, National Jewish Health, 1400 Jackson Street, Denver, 80206, CO, USA.
Carl W WhiteDepartment of Pediatrics, National Jewish Health, 1400 Jackson Street, Denver, 80206, CO, USA.
Azzeddine DakhamaDepartment of Pediatrics, National Jewish Health, 1400 Jackson Street, Denver, 80206, CO, USA. DakhamaA@NJHealth.org.
National Jewish Health · USUniversity of Colorado Denver · US

Funding

Project 3: Environmental Determinants of Host DefenseP01ES018181 · NIEHS · NATIONAL JEWISH HEALTH · PI SCHWARTZ, DAVID ALBERT · 2009 to 2013
$5.7M
Influence of maternal immunity on the response of the newborn to RSV infectionR01HD053557 · NICHD · NATIONAL JEWISH HEALTH · PI DAKHAMA, AZZEDDINE · 2007 to 2011
$1.6M
NICHD NIH HHS R01 HD053557NIEHS NIH HHS P01 ES018181
6 · The paper itself

Abstract

backgroundOzone pollution has adverse effects on respiratory health in children and adults. This study was carried out in the mouse model to investigate the influence of age and to define the role of toll-like receptor four (TLR4) in the lung response to ozone exposure during postnatal development.

methodsFemale mice (1 to 6 weeks of age) were exposed for 3 h to ozone (1 part per million) or filtered air. Analyses were carried out at six and 24 h after completion of exposure, to assess the effects on lung permeability, airway neutrophilia, expression of antioxidants and chemokines, and mucus production. The role of TLR4 was defined by examining TLR4 expression in the lung during development, and by investigating the response to ozone in tlr4-deficient mice.

resultsMetallothionein-1, calcitonin gene-related product, and chemokine C-X-C ligand (CXCL) five were consistent markers induced by ozone throughout development. Compared with adults, neonates expressed lower levels of pulmonary TLR4 and responded with increased mucus production, and developed an attenuated response to ozone characterized by reduced albumin leakage and neutrophil influx into the airways, and lower expression of CXCL1 and CXCL2 chemokines. Examination of the responses in tlr4-deficient mice indicated that ozone-mediated airway neutrophilia, but not albumin leakage or mucus production were dependent on TLR4.

conclusionsCollectively, the data demonstrate that the response to ozone is determined by age and is partially dependent on TLR4 signaling. The reduced responsiveness of the neonatal lung to ozone may be due at least in part to insufficient pulmonary TLR4 expression.

Indexed as

Age FactorsAir PollutantsAnimalsAntioxidantsBiomarkersCapillary PermeabilityChemokinesFemaleInhalation ExposureLungMice, Inbred BALB CMice, KnockoutMucusNeuropeptidesNeutrophil InfiltrationOzoneAir PollutantsAntioxidantsBiomarkersChemokinesNeuropeptidesOzoneSerum AlbuminTlr4 protein, mouseToll-Like Receptor 4

Identifiers

PMID26410792
PMCPMC4583721
OpenAlexW2132200367

What OpenQuestion holds

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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.