脑出血灶周MMP-9的表达与脑水肿的实验研究

被引:8
作者
董静 [1 ]
刘群 [2 ]
机构
[1] 吉林医药学院附属医院神经内科
[2] 吉林大学白求恩第一医院神经内科
关键词
脑出血; MMP-9; 免疫组织化学; RT-PCR;
D O I
10.19845/j.cnki.zfysjjbzz.2016.02.016
中图分类号
R743.34 [脑出血]; R742 [脑部疾病];
学科分类号
摘要
目的明确脑出血后灶周脑组织不同时间点MMP-9蛋白的表达规律,在脑水肿的发生、发展过程中可能作用,相关性及临床意义。方法本研究以不同时间点高血压脑出血患者开颅手术中取的脑出血灶周组织为实验组标本,按脑出血发病时间分为6 h、6~24 h、24 h3 d、>3 d组。以手术入路时少量破坏的脑组织做为对照组标本,通过干湿比重法测脑组织含水量,同时应用HE染色,RT-PCR方法观察各时间点各组脑出血灶周脑组织MMP-9的表达变化。结果 (1)脑出血灶周脑组织含水量的变化:脑出血后灶周脑水肿程度随出血时间的延长逐渐增加,在出血6 h内含水量即开始增加,24 h后较6 h明显增高,3 d左右达到峰值,之后减轻(P<0.05);(2)在人脑出血血肿灶周中MMP-9圴有表达,出血组与对照组相比均有显著性意义(P<0.05),且出血各组之间比较均有差异(P<0.05)。出血6 h后免疫阳性细胞数开始增加,3 d组阳性细胞数最多,之后逐渐下降。MMP-9与脑水肿成正相关。结论 (1)脑出血灶周MMP-9的表达与脑水肿密切相关;(2)在高血压脑出血后脑水肿中MMP-9的异常表达起重要作用,促进脑水肿的发生,为脑出血的治疗提供新的靶点。
引用
收藏
页码:157 / 160
页数:4
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