亚低温通过调控PTEN表达保护损伤后大鼠脑组织

被引:5
作者
管玉华
赵东刚
郑刚
姜莱
机构
[1] 三峡大学人民医院神经外科
关键词
颅脑损伤; 低温,人工; 磷酸酶张力蛋白基因;
D O I
暂无
中图分类号
R651.15 [];
学科分类号
摘要
目的探讨颅脑损伤后亚低温保护机制及与PTEN的关系。方法采用Marmarou法制作SD大鼠颅脑损伤模型,设假手术组、常温损伤组(37℃,NT组)、亚低温损伤组(32℃35℃,HT组)。检测亚低温治疗对大鼠颅脑损伤后6 h、24 h、72 h的保护作用及对损伤脑组织PTEN m RNA、蛋白表达的影响。结果损伤后脑组织PTEN m RNA与蛋白表达在伤后6 h已经开始增加,24 h达到高峰,72 h后仍高于假手术组。亚低温可降低颅脑损伤后各时间PTEN m RNA表达及伤后6 h、24 h PTEN蛋白浓度,但伤后72 h PTEN蛋白浓度,HT组和NT组无明显差异。结论颅脑损伤后神经元表达PTEN增多,亚低温通过下调神经元PTEN表达保护损伤后脑组织。
引用
收藏
页码:181 / 183
页数:3
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