Overexpression of leukotriene C4 synthase in bronchial biopsies from patients with aspirin-intolerant asthma.

New tests for tuberculosis: local immune responses have greater specificity.

Urinary leukotriene E4 concentrations increase after aspirin challenge in aspirin-sensitive asthmatic subjects. of leukotriene C4 synthase in bronchial biopsies from patients with aspirin-intolerant asthma. Effect of endobronchial aspirin challenge on inflammatory cells in bronchial biopsy samples from aspirin-sensitive asthmatic subjects. Expression of interleukin-5 and granulocyte-macrophage ...

Association of Leukotriene C4 Synthase A-444C Polymorphism with Asthma and Asthma Phenotypes in Romanian Population.

INTRODUCTION Leukotriene C4 synthase (LTC4S) gene -444A/C polymorphism has been implicated in susceptibility to asthma, but a large number of studies have reported inconclusive results. The aim of this study was to investigate the association between the -444A/C polymorphism of LTC4S gene and asthma, asthma phenotypes (aspirin intolerant/tolerant asthma) and different characteristics of the pat...

Overexpression of the leukotriene C4 synthase gene in mice reproduces human aspirin-induced asthma

Lack of an association between a newly identified promoter polymorphism (-1702G > A) of the leukotriene C4 synthase gene and aspirin-intolerant asthma in a Korean population.

Aspirin-intolerant asthma (AIA) is a distinct clinical syndrome that refers to the development of bronchoconstriction in asthmatic individuals following the ingestion of aspirin and other nonsteroidal anti-inflammatory drugs (NSAIDs). It is widely recognized that increased cysteinyl leukotriene (cysLT) biosynthesis is associated with the development and progression of AIA. Leukotriene C4 syntha...

Effects of pranlukast, a cysteinyl leukotriene antagonist, on bronchial responsiveness to methacholine in aspirin-intolerant asthmatics treated with corticosteroids.

Cysteinyl leukotrienes (cysLTs) are considered to be the most important mediator involved in the pathogenesis of aspirin-intolerant asthma (AIA). However, the role of cysLTs in the baseline condition of the pathophysiology of AIA when not exposed to non-steroidal antiinflammatory drugs (NSAIDs) as well as that in the pathophysiology of aspirin-tolerant asthma remains to be elucidated. Therefore...