变应性鼻炎大鼠模型的建立方法

Construction of a Rat Model with Allergic Rhinitis

目的:建立有效可行的大鼠变应性鼻炎模型。方法:将雌雄各半、5周~6周龄SPF级SD大鼠20只,随机分成实验组和对照组,每组各10只。应用生理盐水加卵蛋白氢氧化铝溶胶加灭活百日咳杆菌注射大鼠脚掌皮下使其出现致敏现象,继续鼻腔局部致敏,然后观察不同处理组别所致变应性鼻炎大鼠模型的临床症状;通过常规HE染色和甲苯胺蓝染色观察大鼠鼻咽黏膜组织病理学指标的改变,采用叠加量化记分法记分,积分>5分表示造模成功。结果:实验组大鼠出现的症状均与临床相符,经鼻腔局部激发后均能观察到实验组大鼠有搔鼻、喷嚏、流涕等症状;对照组大鼠均无上述症状;所有实验组大鼠和对照组大鼠均无死亡。结论:本实验建立的大鼠变应性鼻炎模型是成功的,方法是可行的,有效的。

Objective To building up an effective animal mode on rat model. Methods We separated randomly 20 SPF , 5-6 weeks rats into control and experiment groups with even ratio of sex. We utilized foreign specific antigen such as egg albumin, aluminium hydroxide gel and deactivated Bacillus ertussis to produce sensibilization by injecting them subcutaneously in feet, and with successive sensibilizating in nasal cavity. And then we observed clinical symptoms in different groups. The pathological change were observed...