支气管哮喘(简称哮喘)是在遗传与环境因素相互作用下,由炎性细胞、气道结构细胞和细胞组分参与的气道慢性炎症性疾病,具有气道高反应性特征[1]。近年来儿童哮喘发病率呈明显上升趋势[2],给患儿家庭及社会经济造成严重影响。因此,提高哮喘临床治疗,尤其是长 Bronchial asthma (asthma) is a chronic airway inflammatory disease involving inflammatory cells, airway structural cells and cellular components under the interaction of genetic and environmental factors, and has the characteristics of airway hyperresponsiveness [1]. In recent years, the incidence of asthma in children showed a clear upward trend [2], to children’s families and socio-economic impact. Therefore, to improve the clinical treatment of asthma, especially long