Asthma: 295 Association of Feno with IgE Levels in Patients with Allergic Asthma

摘要

BackgroundAsthma is a chronic multifactorial disease characterized by inflammation with multiple triggers. Inflamation of the airways is the main pathologic pathway in asthma, and not only determines the diagnosis and severity of symptoms, but is also useful to establish treatment and predict potential complications. By measuring FeNO levels, an indirect level of pulmonary inflammation can be obtained since it is produced by alveolar macrophages in response cytokines. One of the main known causes of this inflammatory response is an allergic reaction. This allergic reaction sets off a cascade of biochemical events that leads to the expression of inflamatory mediators, preformed or de novo, and IgE being the principal of such mediators. The objective was to evaluate the relationship between levels of FeNO and IgE to inflammation and allergy severity.