一、前言变态反应是机体接受抗原物质刺激后引起的一种组织损伤,实质上是病原性免疫反应。当机体接受抗原物质刺激后便产生了体液或细胞免疫反应。慢性阻塞性肺疾病(简称COPD)尤其是支气管哮喘,属于Ⅰ型变态反应,当过敏进入人体后,使呼吸道粘膜层的浆细胞产生了IgE机体抗体,并与肥大细胞,嗜硷细胞结合而使肥大细胞致敏,当 First, the forefront Allergy is a kind of tissue damage caused by the body to accept antigens after stimulation, in essence, pathogenic immune response. When the body receives the stimulation of antigenic material it produces a humoral or cellular immune response. Chronic Obstructive Pulmonary Disease (COPD), especially bronchial asthma, belongs to type Ⅰ allergy. When allergy enters the body, IgE antibodies are produced in the plasma cells of the respiratory mucosa and combined with mast cells and basophils Mast cells sensitized, when