肺功能储备与哮喘的病因和发病机制

Lung function reserve and etiology and pathogencsis ot asthma

不同的人具有不同的肺功能储备。在诱发因素的缓慢作用下，哮喘患者的肺功能储备和（或）免疫力低下。在激发因素的快速作用下，软性气道口径缩窄，使肺功能储备进一步下降。由免疫力低下诱发的急性炎症，特别是过敏反应，能够显著缩窄软性气道口径。提升肺功能储备和免疫力，有利于减少哮喘发作。

Different people have different lung function reserves. Under the long-term effect of contributors on body, lung function reserve and （or） immunity can be lowered. Under the quick-acting effect of triggers on soft tract, soft tract calibers get narrowed, making lung function reserve decline even further. Acute inflammation induced by poor immunity, especially anaphylaxis, can significantly narrow soft tract caliber. Improving lung function reserve and immunity is beneficial to the reduction of asthma attack.