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白细胞介素-21对过敏性鼻炎小鼠鼻黏膜中嗜酸性粒细胞炎症的影响 被引量:3

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摘要 目的探讨白细胞介素-21(IL-21)对过敏性鼻炎小鼠鼻黏膜中嗜酸性粒细胞炎症的影响。方法卵清蛋白(OVA)刺激雌性BALB/c小鼠构建过敏性哮喘病和过敏性鼻炎小鼠模型。ELISA法测定小鼠支气管灌洗液中IL-21的浓度;HE染色法对OVA刺激组[注射OVA 200μg/(kg·只)]、OVA+IL-21组(注射200μg/(kg·只)OVA和20 ng IL-21)和正常对照组(注射相同体积的PBS)小鼠鼻黏膜和肺部组织进行组织病理学检查;运用血球计数法和细胞离心涂片Diff快速染色法对这3组小鼠支气管灌洗液中总细胞和嗜酸性粒细胞、中性粒细胞、巨噬细胞和淋巴细胞计数,ELISA测定3组小鼠血清中Ig E浓度,并进行比较。结果 OVA刺激组小鼠支气管灌洗液中IL-21浓度显著低于正常对照组(P<0.05);OVA刺激组与OVA+IL-21组小鼠支气管灌洗液中总细胞数、不同类型细胞数和血清中Ig E浓度差异均无统计学意义(P>0.05)。结论 IL-21能抑制过敏性鼻炎小鼠鼻黏膜中嗜酸性粒细胞的浸润,外源性IL-21给药不能缓解过敏性哮喘小鼠的肺部炎症。
出处 《广东医学》 CAS 北大核心 2015年第19期2960-2963,共4页 Guangdong Medical Journal
基金 济南市卫生局科技计划项目(编号:2014-29)
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