小鼠变应性鼻炎最轻持续炎症状态模型的制作

被引:7
作者
赵冬菊
王珮华
机构
[1] 上海交通大学医学院附属第九人民医院
关键词
变应性鼻炎; 最轻持续炎症状态; 模型制作;
D O I
暂无
中图分类号
R765.21 [鼻炎]; R-332 [医用实验动物学];
学科分类号
100213 [耳鼻咽喉科学]; 100402 [劳动卫生与环境卫生学];
摘要
目的探讨小鼠变应性鼻炎最轻持续炎症状态(MPI)模型制作方法。方法 BALB/c系雄性小鼠60只,随机分为阳性对照组(A)、实验组即MPI组(B)、阴性对照组(C)、空白对照组(D),每组15只。A、B、C组小鼠分别于第1、第8、第15天腹腔注射OVA、A1(OH)3致敏液进行基础致敏和强化致敏,第22天起各组小鼠予4%OVA鼻腔激发,成功建立变应性鼻炎模型;第29天起,A、B、C组小鼠分别以4%OVA、0.04%OVA或PBS液进行滴鼻刺激,持续3周;D组小鼠全程均以PBS溶液代替OVA滴鼻。于小鼠鼻腔激发后进行症状学评估,并检测鼻中隔黏膜嗜酸性粒细胞浸润密度及上皮细胞内细胞间粘附分子1(ICAM1)表达水平,比较MPI表现形式。结果症状学评分显示致敏各组小鼠均成功建立变应性鼻炎模型;改用0.01%OVA溶液滴鼻后,MPI模型组(B组)小鼠相关症状逐渐消失,与A组比较差异有统计学意义(P<0.01),与C组、D组比较差异无统计学意义(P>0.05),但B组小鼠鼻中隔黏膜仍有少量嗜酸性粒细胞浸润,上皮细胞表达低水平ICAM-1,与C、D组比较差异有统计学意义(P<0.01)。结论在BALB/c小鼠以经典OVA致敏法建立稳定的变应性鼻炎模型基础上,继予低浓度OVA长期鼻腔刺激,可以成功制作小鼠变应性鼻炎最轻持续炎症状态模型。
引用
收藏
页码:321 / 326
页数:6
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