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. 1982 Sep;37(9):646–651. doi: 10.1136/thx.37.9.646

Sputum and ciliary inhibition in asthma.

M J Dulfano, C K Luk
PMCID: PMC459398  PMID: 7157221

Abstract

Twenty-eight sputum samples collected from 20 patients with chronic bronchial asthma of atopic and intrinsic clinical types were incubated with human bronchial explants to study their influence on ciliary motility. Of these, 19 (68%) of the sputa exerted a ciliary inhibitory effect of varying degree in a two-hour period. Analysis of the data indicates that (1) the ciliary inhibitory effect was invariably present when patients produced a distinctive slurry sputum; (2) this occurred more frequently during clinical exacerbations; (3) the induced ciliary inhibition was reversible on removal of the sputum; (4) the intensity of the ciliary inhibitory effect decreased with clinical improvement of the patient; (5) the inhibitory effect was unrelated to the medications used; (6) it was equally common in the atopic and the intrinsic types of asthmatic patients; (7) the effect was not pH dependent or related to the degree of eosinophilia. The ciliary inhibitory factor in sputum was identified as having a molecular weight of 6000-8000. It may play a part in the pathogenesis of asthma and recognition of sputum containing it carries implications for treatment.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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