Abstract
The aim of the present study was to assess the relationship between serum eosinophil cationic protein levels and the severity of exercise-induced bronchoconstriction in asthmatic children. The 48 asthmatic children were divided into exercise-induced bronchoconstriction group and non-exercise-induced bronchoconstriction group. In the exercise-induced bronchoconstriction group, the post-exercise serum eosinophil cationic protein levels were significantly increased as compared with the pre-exercise serum eosinophil cationic protein levels. These results suggested that eosinophil cationic protein may serve as a possible contributor to the pathophysiology of exercise-induced bronchoconstriction in asthmatic children.