发病原理体液因素因体液因素而发生的哮喘多属于外源性哮喘,常由吸入花粉、灰尘、螨、霉菌、或因食用鱼、虾、蟹、牛奶、蛋类等而发病。这种哮喘多见于儿童或青少年,体内产生抗体(IgE),属于速发型(Ⅰ型)变态反应。初次过敏原进入机体后,浆细胞产生反应素(IgE)。有过敏体质者所产生的IgE比正常人 Pathogenesis The body fluid factors Asthma due to body fluids are mostly extrinsic asthma, often by inhalation of pollen, dust, mites, mold, or due to eating fish, shrimp, crab, milk, eggs and other disease. This asthma is more common in children or adolescents, the body produces antibodies (IgE), is a quick-onset (type I) allergy. After the first allergen enters the body, plasma cells produce reactive element (IgE). People with allergies produce IgE more than normal people