| 脑淋巴引流阻滞加重蛛网膜下腔出血后大鼠皮层神经细胞的凋亡 |
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| 引用本文： | 王轩,高向东,高兵,贾丽丽,杨明峰,张颜波,孙保亮.脑淋巴引流阻滞加重蛛网膜下腔出血后大鼠皮层神经细胞的凋亡[J].生理学报,2010(2). |
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| 作者姓名： | 王轩 高向东 高兵 贾丽丽 杨明峰 张颜波 孙保亮 |
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| 作者单位： | 山东省高校脑微循环重点实验室;泰山医学院附属医院神经内科;章丘市人民医院神经内科; |
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| 基金项目： | supported by the National Natural Science Foundation of China (No. 30570651, 30670724, 30770759); the Scientific and Technologic Research Development Program of Education Department of Shandong Province, China (No. J05L10); Chinese Traditional Medicine Research Development Program of Shandong Province, China (No.2005-231); Foundation of High-level Medical Scientist of Shandong Province, China |
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| 摘 要： | 本文旨在探讨在体脑淋巴引流阻滞(cerebral lymphatic blockage,CLB)对蛛网膜下腔出血(subarachnoid hemorrhage,SAH)后大鼠皮层神经细胞凋亡的影响及机制。选用健康成年Wistar大鼠,随机分为正常对照组、SAH组、SAH+CLB组。采用枕大池二次注血法建立SAH模型。于第二次注血3d后,采用HE染色法及碘化丙啶(PI)染色法观察各组大鼠皮层神经细胞形态结构变化;TUNEL荧光标记法检测原位凋亡情况;免疫组织化学激光共聚焦检测大鼠皮层神经细胞Caspase-3和Bcl-2的蛋白表达。结果显示:(1)HE染色和PI染色可见SAH组大鼠部分皮层神经细胞皱缩,细胞核呈波纹状或折缝样,部分呈新月形;SAH+CLB组神经细胞分布稀疏,核碎裂,可见凋亡小体,周围有空泡形成;(2)SAH组和SAH+CLB组TUNEL阳性细胞的数量均高于正常对照组,而SAH+CLB组又显著高于SAH组;(3)SAH组和SAH+CLB组Caspase-3的表达量均高于正常对照组,而SAH+CLB组又显著高于SAH组;(4)SAH组和SAH+CLB组Bcl-2蛋白表达量均高于正常对照组,而SAH+CLB组显著低于SAH组。以上结果表明,CLB可以通过Caspase-3高表达和Bcl-2低表达加重SAH后大鼠皮层神经细胞的凋亡。
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| 关 键 词： | 脑淋巴引流 蛛网膜下腔出血 凋亡 Caspase-3 Bcl-2 |
Cerebral lymphatic blockage aggravates apoptosis of cortical neurons after subarachnoid hemorrhage in rats in vivo |
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| Abstract: | This present study was performed to investigate the influence of cerebral lymphatic blockage (CLB) on apoptosis of cortical neurons after subarachnoid hemorrhage (SAH) in rats in vivo.Healthy adult Wistar rats were randomly divided into normal control group,SAH group and SAH + CLB group.SAH model was made by double injection of autologous blood into the cisterna magna.On the third day after the second cisternal injection,morphological changes of cortical cells were observed by hematoxylin-eosin (HE) combine... |
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| Keywords: | cerebral lymphatic drainage subarachnoid hemorrhage apoptosis Caspase-3 Bcl-2 |
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