一种定量评价离体海马脑片缺糖/缺氧损伤的新方法

被引:11
作者
严乐勤
魏尔清
胡海涛
张纬萍
王梦令
沈建中
不详
机构
[1] 浙江大学医学院
[2] 浙江大学医学院 浙江杭州
[3] 浙江杭州
基金
浙江省自然科学基金;
关键词
疾病模型,动物; 脑损伤; OGD; 分光光度法; 定量评价;
D O I
暂无
中图分类号
R741.02 [神经病理学、病因学];
学科分类号
0710 ; 071006 ;
摘要
目的 :建立一种定量评价离体脑片缺糖 /缺氧损伤的简便、快速、灵敏的方法。方法 :离体海马脑片缺糖 /缺氧不同时间后以 2 % 2 ,3,5 -三苯基氯化四氮唑 (TTC)染色 ,用乙醇∶二甲亚砜 (5 0∶ 5 0 )抽提 TTC红色结晶产物 ,分光光度法测定 OD490 值 ,并与 LDH释放率进行比较。结果 :随着缺糖 /缺氧时间的延长 ,TTC染色 (OD490 值 )逐渐下降 ,而 LDH释放率逐渐上升 ,两结果呈负相关 (r=- 0 .933,P<0 .0 1) ,提示脑片缺血性损伤。尼莫地平、地塞米松和氯胺酮可减轻脑片缺血性损伤 ,但 ONO- 10 78无效。结论 :TTC染色法简单易行 ,且客观灵敏 ,可用于离体脑片损伤的评价及药物初筛。
引用
收藏
页码:19 / 23
页数:5
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