支气管哮喘(Asthma bronchial)(以下简称哮喘)是世界范围的常见病。在我国,如以患病率2％计算,全国十亿人口哮喘病人可多达两千万人,(1)这个数字说明迅速开始对本病积极防治与深入研究是非常必要的。哮喘形成原因,国内外有关资料已报导不少,但对其为何仅在某些人易发病,且又有显著的同期性、节律性的复发?截至目前为止尚无完整资料说明。在治疗上,尽管平喘药的研究已取得明显的进展,如选择性β_2-受体兴奋药的研究成 Asthma bronchial (hereinafter referred to as asthma) is a common disease in the world. In our country, if the prevalence rate is 2%, up to 20 million people can asthma patients with 1 billion people in the country. (1) This figure shows that it is very necessary to start positive prevention and further research on this disease rapidly. The reasons for the formation of asthma, domestic and foreign information has been reported a lot, but why it is only in some people prone to disease, and there is a significant synchronous, rhythmic recurrence? Up to now there is no complete information. In the treatment, although the research of antiasthmatic drugs have made significant progress, such as selective β_2-receptor agonist research into