Evidence map›Paper›PMID 19436691›Full record

ArticleInternational journal of chronic obstructive pulmonary disease2009

Reticular basement membrane in asthma and COPD: similar thickness, yet different composition.

Jeroen J W Liesker, Nick H Ten Hacken, Mieke Zeinstra-Smith, Steven R Rutgers, Dirkje S Postma, Wim Timens

Open access · goldAbstract readComparative Study
In one paragraph

Article in International journal of chronic obstructive pulmonary disease, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed
2.5field-weighted citation impact, top 12% 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

47 citing papers in PubMed, 82 citations in OpenAlex.

  1. Article
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  3. Mechanisms Underlying Altitude-Induced and Group 3 Pulmonary Hypertension.International journal of molecular sciences · 2026
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  5. Beyond classical collagen: basement membrane collagen IV in age-associated lung diseases.European respiratory review : an official journal of the European Respiratory Society · 2025
    Review
  6. Article
  7. Type 2 inflammation in COPD: is it just asthma?Breathe (Sheffield, England) · 2024
    Review
  8. Article
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  12. Review
  13. Article
  14. Article
  15. Article
  16. Review
  17. Review
  18. Article
  19. Tenascin-C: Friend or Foe in Lung Aging?Frontiers in physiology · 2021
    Article
  20. 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

6 authors at 1 institution in 1 country.

Jeroen J W LieskerDepartment of Pulmonology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
Nick H Ten Hacken
Mieke Zeinstra-Smith
Steven R Rutgers
Dirkje S Postma
Wim Timens
University Medical Center Groningen · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundReticular basement membrane (RBM) thickening has been variably associated with asthma and chronic obstructive pulmonary disease (COPD). Even if RBM thickness is similar in both diseases, its composition might still differ.

objectiveTo assess whether RBM thickness and composition differ between asthma and COPD.

methodsWe investigated 24 allergic asthmatics (forced expiratory volume in one second [FEV(1)] 92% predicted), and 17 nonallergic COPD patients (FEV(1) 60% predicted), and for each group a control group of similar age and smoking habits (12 and 10 persons, respectively). Snap-frozen sections of bronchial biopsies were stained with hematoxylin/eosin and for collagen I, III, IV, V, laminin and tenascin. RBM thickening was assessed by digital image analysis. Relative staining intensity of each matrix component was determined.

resultsMean (SD) RBM thickness was not significantly different between asthma and COPD 5.5 (1.3) vs 6.0 (1.8) microm, but significantly larger than in their healthy counterparts, ie, 4.7 (0.9) and 4.8 (1.2) microm, respectively. Collagen I and laminin stained significantly stronger in asthma than in COPD. Tenascin stained stronger in asthma than in healthy controls of similar age, and stronger in COPD controls than in asthma controls (p < 0.05).

conclusionRBM thickening occurs both in asthma and COPD. We provide supportive evidence that its composition differs in asthma and COPD.

Indexed as

Airway RemodelingAdultAgedAsthmaBasement MembraneBiopsyBronchiBronchoscopyCase-Control StudiesCollagenExtracellular Matrix ProteinsFemaleForced Expiratory VolumeHumansLamininMaleCollagenExtracellular Matrix ProteinsLamininTenascin

Identifiers

PMID19436691
PMCPMC2672795
OpenAlexW1504461065

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.