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人参皂甙对大鼠急性脊髓损伤的保护作用及其机制附视频
被引:5
作者
:
宋永兴
论文数:
0
引用数:
0
h-index:
0
机构:
武警浙江省总队医院骨科
宋永兴
金才益
论文数:
0
引用数:
0
h-index:
0
机构:
武警浙江省总队医院骨科
金才益
曾忠友
论文数:
0
引用数:
0
h-index:
0
机构:
武警浙江省总队医院骨科
曾忠友
王斌
论文数:
0
引用数:
0
h-index:
0
机构:
武警浙江省总队医院骨科
王斌
张建乔
论文数:
0
引用数:
0
h-index:
0
机构:
武警浙江省总队医院骨科
张建乔
机构
:
[1]
武警浙江省总队医院骨科
来源
:
海南医学
|
2009年
/ 05期
关键词
:
脊髓损伤;
人参皂甙;
凋亡;
D O I
:
暂无
中图分类号
:
R285.5 [中药实验药理];
学科分类号
:
1008 ;
摘要
:
目的探讨人参皂甙(Ginsenodides,Gs)对急性脊髓损伤的保护作用及其机制。方法采用改良Allen’s重物打击法制作急性脊髓损伤模型。大鼠随机分为对照组、损伤组和Gs治疗组。每组36只,分别于术后6h、12h、1d、3d、7d、14d完整取大鼠T9脊髓段。斜板实验和BBB行为学评分评价大鼠脊髓功能的恢复情况;TUNEL法标记脊髓组织凋亡细胞;Western blot方法检测B细胞淋巴瘤/白血病基因-2(Bcl-2)和Bcl伴随蛋白x(Bax)蛋白表达;RT-PCR方法检测半胱氨酸基天冬氨酸-特异性蛋白酶-3(Caspase-3)mRNA表达。结果损伤组和Gs组大鼠术后14d内脊髓功能均有不同程度恢复,Gs组恢复优于损伤组(P<0.05或P<0.01);损伤组大鼠脊髓TUNEL标记的阳性细胞数于术后3d达高峰,Gs组于相应各时间点均低于损伤组(P<0.01);术后各时间点Gs组大鼠脊髓Bcl-2蛋白表达高于损伤组(P<0.01),术后12h、1d、3d、7d、14dGs组大鼠脊髓Bax蛋白表达均低于损伤组(P<0.05或P<0.01);术后各时间点Gs组大鼠脊髓Caspase-3 mRNA表达低于损伤组(P<0.01)。结论通过提高Bcl-2/Bax比值并抑制Caspase-3 mRNA表达减少脊髓损伤后神经元凋亡是Gs对脊髓损伤后具有保护作用的可能机制之一。
引用
收藏
页码:6 / 9
页数:4
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机构:
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Rausch, WD
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BRAIN RESEARCH,
2004,
1021
(01)
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←
1
→