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【关键词】 EAE;HMG-CoA抑制剂
Effect of atorvastatin on experimental allergic encephalomyelitis in guinea pig
【Abstract】 Objective To explore the prophylaxis and treatment effects of atorvastatin on experimental allergic encephalomyelitis(EAE).Methods The experimental EAE mould was established by subcutaneous administrating coarse myelin basic protein (CMBP) in Guinea pig,and all the subjects were divided into two groups as control group and treatment group;The treatment group mice were divided into low dose group and high dose group perfused with atorvastatin transgastricly seven days before the mould,and the control group didn't use atorvastatin.Results The delitescence of the treatment group was significantly shorter than the control group(P<0.001),and the delitescence of the low dose group was shorter than the high dose group(P<0.05).The progression of the treatment group was significantly shorter than the control group(P<0.01).Comparing to the control group,the maximal disease score was significantly decline in the high dose group(P<0.01).Conclusion Atorvastatin could postpone the delitescence of the EAE mould animal,prevent the progression of the disease,alleviate the damage of the central nervous system and reduce mortality rate at fastigium.
【Key words】 EAE;HMG-CoA inhibitor
EAE是实验动物发生的一种局限在神经系统内的迟发型超敏型自身免疫性疾病[1],具有与人类多发性硬化、急性播散性脑脊髓炎相同的免疫及病理特征[2],是人类中枢系统脱髓鞘病的动物模型。他汀类药物是3-羟甲基-戊二酰-辅酶A(HMG-CoA)还原酶抑制剂,目前研究在发挥降脂同时发挥免疫调节作用。本实验探讨他汀类药物是否对EAE动物具有保护作用,现报告如下。
1 材料与方法
1.1 实验动物
使用大白鼠5只,300~350g;豚鼠,共30只,雌雄各半,体重250~350g,由泸州医学院实验动物科提供,均为1级合格动物,合格证号:川医动字第2401115。
1.2 药品和试剂
福氏完全佐剂(Freund's adjuvant complete,含卡介苗10mg/ml)Sigma公司产品;阿托伐他汀钙片(Atorvastatin Calcium Tablets),北京红惠生物制药股份有限公司生产。
1.3 方法
1.3.1 粗制MBP抗原制备
将大白鼠处死后,迅速取出脊髓,用匀浆器制成50%的匀浆,与等量福氏完全佐剂(卡介苗10mg/ml)混合,用注射器抽打至油包水乳剂。
1.3.2 EAE模型的建立与分组
用粗制碱性髓鞘蛋白(MBP)抗原注入豚鼠后足掌皮下,每侧0.2ml造EAE模型。EAE模型分为高、低剂量治疗组和对照组。EAE模型治疗组20只:高剂量组10只,造模前1周开始灌胃阿托伐他汀4mg/(kg·d)直至整个实验结束;低剂量组10只,造模前1周开始灌胃阿托伐他汀1mg/(kg·d)直至整个实验结束。EAE模型对照组10只,不服阿托伐他汀。
责编:杨盛昌
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