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Airway smooth muscle thickness in asthma is related to severity but not duration of asthma

Open access
James, A. L., Bai, T. R., Mauad, T., Abramson, M. J., Dolhnikoff, M., McKay, K. O., Maxwell, P. S., Elliot, J. G., Green, F. H.·2009·European Respiratory Journal

Abstract

Asthma is characterised by an increased airway smooth muscle (ASM) area (ASM area) within the airway wall. The present study examined the relationship of factors including severity and duration of asthma to ASM area. The perimeter of the basement membrane (PBM) and ASM area were measured on transverse sections of large and small airways from post mortem cases of fatal (n = 107) and nonfatal asthma (n = 37) and from control subjects (n = 69). The thickness of ASM (ASM area/PBM) was compared between asthma groups using multivariate linear regression. When all airways were considered together, ASM area/PBM (in millimetres) was increased in nonfatal (median 0.04; interquartile range 0.013–0.051; p = 0.034) and fatal cases of asthma (0.048; 0.025–0.078; p<0.001) compared with controls (0.036; 0.024–0.042). Compared with cases of nonfatal asthma, ASM area/PBM was greater in cases of fatal asthma in large (p<0.001) and medium (p<0.001), but not small, airways. ASM area/PBM was not related to duration of asthma, age of onset of asthma, sex or smoking. No effect due to study centre, other than that due to sampling strategy, was found. The thickness of the ASM layer is increased in asthma and is related to the severity of asthma but not its duration.

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Metadata

Authors
James, A. L., Bai, T. R., Mauad, T., Abramson, M. J., Dolhnikoff, M., McKay, K. O., Maxwell, P. S., Elliot, J. G., & Green, F. H.
Venue
European Respiratory Journal
Published
2009-03-12
Volume
34
Issue
5
Pages
1040-1045
ISSN
  • 0903-1936 (ISSN-L)
  • 1399-3003
OpenAlex
W2155650191
Cited by
178
References
2
FWCI
6.30
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Airway smooth muscle thickness in asthma is related to severity but not duration of asthma. https://app.cochat.ai/papers/10.1183/09031936.00181608
The paper
James, A. L., Bai, T. R., Mauad, T., Abramson, M. J., Dolhnikoff, M., McKay, K. O., Maxwell, P. S., Elliot, J. G., & Green, F. H. (2009). Airway smooth muscle thickness in asthma is related to severity but not duration of asthma. European Respiratory Journal. https://doi.org/10.1183/09031936.00181608

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.