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哮喘是儿童一种常见的呼吸道疾病 ,近年来发病率日趋上升 ,严重威胁儿童的健康。由于病因和发病机理极为复杂 ,给临床防治带来极大困难。近来普遍认为哮喘是一种气道嗜酸性细胞浸润的慢性变应性炎症 ,其发生发展与Ｔ辅助细胞 (ＴＨ)亚群功能失常而导致的细胞因子失衡密切相关 ,
Asthma is a common respiratory disease in children. The incidence of asthma is increasing in recent years, which seriously threatens the health of children. Due to the extremely complicated etiology and pathogenesis, it brings great difficulties to clinical prevention and treatment. It has recently been widely accepted that asthma is a chronic allergic inflammation of airway eosinophilic infiltration. The development and progression of asthma is closely related to imbalance of cytokines caused by dysfunction of T helper (TH)