Barbato A, Pisetta F, Norbiato M, Ragusa A, Mesirca P, Pesenti P, Marcer G
Ann Allergy. 1986 Feb;56(2):138-41.
Nine children, sensitized to grass pollens, with seasonal rhinitis and mild asthma underwent bronchial challenge with carbachol and EIA test repeatedly either during a pre-seasonal or in seasonal period. We failed to find any significant difference between pre-seasonal and seasonal values in both tests. We believe that atmospheric conditions are an important determinant of our results. It is our hypothesis that a threshold concentration in atmospheric pollen may exist which must be reached before an allergic reaction is evident.
九名对草花粉过敏、患有季节性鼻炎和轻度哮喘的儿童，在季节前或季节期间反复接受了卡巴胆碱支气管激发试验和酶免疫分析测试。我们未能在两项测试中发现季节前和季节期间的值有任何显著差异。我们认为大气条件是我们结果的一个重要决定因素。我们的假设是，大气花粉可能存在一个阈值浓度，在过敏反应明显之前必须达到这个浓度。
