Evidence map›Paper›PMID 21700892›Full record

Trial reportJournal of applied physiology (Bethesda, Md. : 1985)2011

Pulmonary function, bronchial reactivity, and epithelial permeability are response phenotypes to ozone and develop differentially in healthy humans.

Loretta G Que, Jane V Stiles, John S Sundy, W Michael Foster

Abstract readComparative StudyRandomized Controlled Trial
In one paragraph

Trial report in Journal of applied physiology (Bethesda, Md. : 1985), 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
3.1field-weighted citation impact, top 10% 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

34 citing papers in PubMed, 58 citations in OpenAlex.

  1. Article
  2. Review
  3. Evaluating the role of alveolar macrophages in tolerance to ozone.Toxicological sciences : an official journal of the Society of Toxicology · 2025
    Article
  4. Article
  5. Review
  6. Review
  7. Article
  8. Review
  9. Interleukin-11 receptor subunit α-1 is required for maximal airway responsiveness to methacholine after acute exposure to ozone.American journal of physiology. Regulatory, integrative and comparative physiology · 2022
    Article
  10. Review
  11. Article
  12. Article
  13. Review
  14. Article
  15. Review
  16. Article
  17. The leaky lung test: a pilot study using inhaled mannitol to measure airway barrier function in asthma.The Journal of asthma : official journal of the Association for the Care of Asthma · 2019
    Article
  18. CC16 Levels into Adult Life Are Associated with Nitrogen Dioxide Exposure at Birth.American journal of respiratory and critical care medicine · 2019
    Article
  19. Sex Modifies Acute Ozone-Mediated Airway Physiologic Responses.Toxicological sciences : an official journal of the Society of Toxicology · 2019
    Article
  20. Sex Differences in Pulmonary Responses to Ozone in Mice. Role of the Microbiome.American journal of respiratory cell and molecular biology · 2019
    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

4 authors at 2 institutions in 1 country.

Loretta G QueDivision of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Duke University Medical Center, Durham, North Carolina 27710, USA.
Jane V Stiles
John S Sundy
W Michael Foster
Duke Medical Center · USDuke University Hospital · US

Funding

Surfactant Protein-A Regulation of Innate Immunityin AsthmaP01AI081672 · NIAID · DUKE UNIVERSITY · PI SUNDY, JOHN S · 2009 to 2013
$7.4M
Dependency of O-3 Induced Lung Mucus Hypersecretion on NQ01R01ES016347 · NIEHS · DUKE UNIVERSITY · PI FOSTER, W MICHAEL · 2008 to 2010
$1.0M
NIAID NIH HHS AI-81672NIEHS NIH HHS ES-16347
6 · The paper itself

Abstract

Effect of laboratory exposure to O₃ (220 ppb) and filtered air (FA) on respiratory physiology were evaluated at two time points (acute and 1 day postexposure) in healthy cohort (n = 138, 18-35 yr, 40% women) comprised mainly of Caucasian (60%) and African American (33.3%) subjects. Randomized exposures had a crossover design and durations of 2.25 h that included rest and treadmill walking. Airway responsiveness (AHR) to methacholine (Mch) and permeability of respiratory epithelium (EI) to hydrophilic radiomarker ((99m)Tc-DTPA, MW = 492), were measured at 1-day postexposure. O₃ significantly affected FEV₁ and FVC indices acutely with mean decrements from pre-exposure values on the order of 7.7 to 8.8% and 1.8 to 2.3% at 1-day post. Acute FEV₁ and FVC decreases were most robust in African American male subjects. At 1-day post, O₃ induced significant changes in AHR (slope of Mch dose response curve) and EI (Tc(99m)-DTPA clearance half-time). Based on conventional thresholds of response and dichotomous classification of subjects as responders and nonresponders, sensitivity to O₃ was shown to be nonuniform. Acute decrements ≥ 15% in FEV₁, a doubling of Mch slope, or ≥ 15% increase in EI developed in 20.3%, 23.1%, and 25.9%, respectively, of subjects evaluated. Results demonstrate a diffuse sensitivity to O₃ and physiological responses, either acutely (decreases in FEV₁) or 1 day post (development of AHR or change in EI) occur differentially in healthy young adults. Random overlap among subjects classified as responsive for respective FEV₁, AHR, and EI endpoints suggests these are separate and independent phenotypes of O₃ exposure.

Indexed as

AdolescentAdultBlack or African AmericanBronchiBronchial HyperreactivityBronchial Provocation TestsBronchoconstrictionBronchoconstrictor AgentsCross-Over StudiesFemaleForced Expiratory VolumeHumansInhalation ExposureLinear ModelsLungMaleBronchoconstrictor AgentsMethacholine ChlorideOzoneRadiopharmaceuticalsTechnetium Tc 99m Pentetate

Identifiers

PMID21700892
PMCPMC3174797
OpenAlexW2108276605

What OpenQuestion holds

Textmetadata
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.