几十年来世界各地哮喘病发病率和死亡率一直呈逐年增高趋势 ,该现象已引起了世界卫生组织、各国政府和临床医师的广泛关注。据不完全统计 ,我国哮喘发病率约为 1 %～ 4% ,最保守估计我国哮喘病患者应在 1 0 0 0万人以上 ,已成为较严重的社会卫生问题。近十年来随着分子生物学的 The incidence and mortality of asthma in the world have been increasing year by year for decades. This phenomenon has drawn the widespread concern of the World Health Organization, governments and clinicians. According to incomplete statistics, the incidence of asthma in China is about 1% to 4%. The most conservative assessment of asthma in China should be more than 10 million people and it has become a serious social health problem. Nearly a decade with molecular biology