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21 小时
清华团队揭示过敏原的致敏机制:原来蛋白质在气道细胞上打孔!
团队让小鼠在两周内每三天接受这两种蛋白,之后发现小鼠出现了呼吸道过敏的迹象,如血清免疫球蛋白E (IgE)水平升高——身体遇到过敏原时会产生这种抗体。在分别注射这两种蛋白质时,或当小鼠暴露在缺乏其中一种蛋白的遗传改造霉菌中时,均未出现这种反应。
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