The efficacy of montelukast and airway mast cell profiles in patients with cough variant asthma

The Journal of Asthma : Official Journal of the Association for the Care of Asthma
Seiko KawaiEtsuro Yamaguchi

Abstract

Cough variant asthma (CVA) is characterized by chronic cough without apparent wheezing; its pathophysiology is considered to be similar to that of classic asthma. The clinical effects of montelukast, a cysteinyl-leukotriene receptor antagonist, on cough variant asthma were assessed, and the activation profile of airway mast cells was examined. Montelukast (10 mg/day) was given orally to 36 CVA patients (25 women and 11 men; median age, 37.5 years). Before treatment, the patients' bronchial mucosa underwent a biopsy with a fiberoptic bronchoscope. The biopsy specimens were double stained with anti-CD63 antibody and anti-human tryptase antibody. After 2 weeks of montelukast treatment, cough symptoms improved in 22 patients (the effective group) but did not improve in 14 patients (the ineffective group); in the ineffective group, the symptoms disappeared 2 weeks after they were switched to fluticasone propionate (400 microg/day) inhalation therapy. In the effective group, the time interval from the onset of symptoms to the initiation of treatment was significantly shorter than in the ineffective group. The bronchial mucosa biopsy specimens showed that the proportion of CD63-positive cells in tryptase-positive mast cells was signif...Continue Reading

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Citations

Jul 5, 2011·Current Opinion in Pharmacology·Emma C Young, Jaclyn A Smith
Jun 19, 2013·Pulmonary Pharmacology & Therapeutics·Akio Niimi
Nov 19, 2011·Respiration; International Review of Thoracic Diseases·Masaya TakemuraMichiaki Mishima
Mar 29, 2014·Pharmacological Reviews·P V DicpinigaitisC P Page

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