Evidence map›Paper›PMID 23936505›Full record

ArticlePloS one2013

Aging does not enhance experimental cigarette smoke-induced COPD in the mouse.

Steven Zhou, Joanne L Wright, Joseph Liu, Don D Sin, Andrew Churg

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 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
2.8field-weighted citation impact, top 9% 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

20 citing papers in PubMed, 33 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Review
  6. Journal of medical imaging (Bellingham, Wash.) · 2023
    Article
  7. Lung regeneration: implications of the diseased niche and ageing.European respiratory review : an official journal of the European Respiratory Society · 2020
    Review
  8. Article
  9. Article
  10. Article
  11. Article
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  15. Article
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  17. Review
  18. Article
  19. Article
  20. Soluble extracellular Klotho decreases sensitivity to cigarette smoke induced cell death in human lung epithelial cells.Toxicology in vitro : an international journal published in association with BIBRA · 2015
    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

5 authors at 1 institution in 1 country.

Steven ZhouDepartment of Pathology, University of British Columbia, Vancouver, British Columbia, Canada.
Joanne L Wright
Joseph Liu
Don D Sin
Andrew Churg
University of British Columbia · CA

Funding

Canadian Institutes of Health Research
6 · The paper itself

Abstract

It has been proposed that the development of COPD is driven by premature aging/premature senescence of lung parenchyma cells. There are data suggesting that old mice develop a greater inflammatory and lower anti-oxidant response after cigarette smoke compared to young mice, but whether these differences actually translate into greater levels of disease is unknown. We exposed C57Bl/6 female mice to daily cigarette smoke for 6 months starting at age 3 months (Ayoung@) or age 12 months (Aold@), with air-exposed controls. There were no differences in measures of airspace size between the two control groups and cigarette smoke induced exactly the same amount of emphysema in young and old. The severity of smoke-induced small airway remodeling using various measures was identical in both groups. Smoke increased numbers of tissue macrophages and neutrophils and levels of 8-hydroxyguanosine, a marker of oxidant damage, but there were no differences between young and old. Gene expression studies using laser capture microdissected airways and parenchyma overall showed a trend to lower levels in older animals and a somewhat lesser response to cigarette smoke in both airways and parenchyma but the differences were usually not marked. Telomere length was greatest in young control mice and was decreased by both smoking and age. The senescence marker p21(Waf1) was equally upregulated by smoke in young and old, but p16(INK4a), another senescence marker, was not upregulated at all. We conclude, in this model, animal age does not affect the development of emphysema and small airway remodeling.

Indexed as

AgingAirway RemodelingAnimalsBiomarkersCellular SenescenceCytokinesDisease Models, AnimalFemaleGuanosineImmunoenzyme TechniquesInflammationMiceMice, Inbred C57BLPulmonary EmphysemaReal-Time Polymerase Chain ReactionReverse Transcriptase Polymerase Chain Reaction8-hydroxyguanosineBiomarkersCytokinesGuanosineRNA, Messenger

Identifiers

PMID23936505
PMCPMC3732225
OpenAlexW2061653665

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.