Evidence map›Paper›PMID 24260479›Full record

ArticlePloS one2013

Effects of N-acetylcysteine in ozone-induced chronic obstructive pulmonary disease model.

Feng Li, Cornelis Wiegman, Joanna M Seiffert, Jie Zhu, Colin Clarke, Yan Chang, Pank Bhavsar, Ian Adcock, Junfeng Zhang, Xin Zhou and 1 more

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 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
1.9field-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

34 citing papers in PubMed, 68 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Article
  6. Review
  7. Article
  8. Review
  9. Article
  10. Advances in the Use ofAntioxidants (Basel, Switzerland) · 2023
    Review
  11. Attenuation of PMParticle and fibre toxicology · 2023
    Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Hydrogen Sulfide Plays an Important Role by Influencing NLRP3 inflammasome.International journal of biological sciences · 2020
    Review
  20. 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

11 authors at 3 institutions in 3 countries.

Feng LiExperimental Studies Unit, National Heart and Lung Institute, Imperial College London, London, United Kingdom ; Department of Respiratory Medicine, the Affiliated First People's Hospital of Shanghai Jiao Tong University, Shanghai, P.R. China.
Cornelis Wiegman
Joanna M Seiffert
Jie Zhu
Colin Clarke
Yan Chang
Pank Bhavsar
Ian Adcock
Junfeng Zhang
Xin Zhou
Kian Fan Chung
Imperial College London · GBUniversity of Southern California · USShanghai First People's Hospital · CN

Funding

Wellcome TrustWellcome Trust 083905
6 · The paper itself

Abstract

introductionChronic exposure to high levels of ozone induces emphysema and chronic inflammation in mice. We determined the recovery from ozone-induced injury and whether an antioxidant, N-acetylcysteine (NAC), could prevent or reverse the lung damage.

methodsMice were exposed to ozone (2.5 ppm, 3 hours/12 exposures, over 6 weeks) and studied 24 hours (24h) or 6 weeks (6W) later. Nac (100 mg/kg, intraperitoneally) was administered either before each exposure (preventive) or after completion of exposure (therapeutic) for 6 weeks.

resultsAfter ozone exposure, there was an increase in functional residual capacity, total lung volume, and lung compliance, and a reduction in the ratio of forced expiratory volume at 25 and 50 milliseconds to forced vital capacity (FEV25/FVC, FEV50/FVC). Mean linear intercept (Lm) and airway hyperresponsiveness (AHR) to acetylcholine increased, and remained unchanged at 6W after cessation of exposure. Preventive NAC reduced the number of BAL macrophages and airway smooth muscle (ASM) mass. Therapeutic NAC reversed AHR, and reduced ASM mass and apoptotic cells.

conclusionEmphysema and lung function changes were irreversible up to 6W after cessation of ozone exposure, and were not reversed by NAC. The beneficial effects of therapeutic NAC may be restricted to the ASM.

Indexed as

8-Hydroxy-2'-DeoxyguanosineAcetylcysteineAnimalsApoptosisBronchial HyperreactivityBronchoalveolar Lavage FluidDeoxyguanosineDisease Models, AnimalEmphysemaExpectorantsGene ExpressionLungMalondialdehydeMiceOzonePulmonary Disease, Chronic Obstructive8-Hydroxy-2'-DeoxyguanosineAcetylcysteineDeoxyguanosineExpectorantsMalondialdehydeOzone

Identifiers

PMID24260479
PMCPMC3832609
OpenAlexW2014519750

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.