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支气管哮喘是由嗜酸性粒细胞、肥大细胞和T淋巴细胞等多种炎症细胞参与的气道慢性炎症。这种炎症使易感者对各种激发因子具有气道高反应性,并引起气道狭窄。发病率呈明显上升趋势,城市高于农村,是一种严重威胁人类健康的疾病。哮喘的病因还不十分清楚,大多认为是受遗传因素和环
Bronchial asthma is a chronic airway inflammation involving a variety of inflammatory cells such as eosinophils, mast cells and T lymphocytes. This inflammation makes susceptible to a variety of stimuli with airway hyperresponsiveness, and cause airway stenosis. The incidence rate showed a clear upward trend, the city is higher than the rural areas, is a serious threat to human health diseases. The etiology of asthma is not yet fully understood, mostly due to genetic factors and the ring