硬膜外腔植入髓核对大鼠脊髓背根神经节TNF-α和IL-1表达的影响

被引:5
作者
张挺杰
倪家骧
张春雷
李娟红
于翠萍
机构
[1] 首都医科大学宣武医院疼痛诊疗科
关键词
髓核; 背根神经节; 肿瘤坏死因子-α; 白细胞介素-1;
D O I
暂无
中图分类号
R681.53 [];
学科分类号
摘要
目的:观察硬膜外腔植入异体髓核对大鼠L6-S1脊髓背根神经节细胞TNF-α和IL-1表达的影响,以期为椎间盘源性疼痛发病机制提供细胞生物学基础。方法:雄性SD大鼠(体重260—280g)随机分为4组:脂肪+生理盐水组(FS组)、脂肪+胶原酶组(FE)、髓核+生理盐水组(NS)、髓核+胶原酶组(NE组),每组6只。术后第15天取L6-S1脊髓背根神经节,采用免疫组织化学染色方法观察髓核对背根神经节细胞炎性介质TNF-α和IL-1表达的影响。结果:术后15天FE组大鼠与FS组相比,背根神经节细胞TNF-α表达差异没有显著性意义(P>0.05);NS组与FE组相比背根神经节细胞TNF-α表达显著增加(P<0.05);NE组与NS组相比背根神经节细胞TNF-α表达显著降低(P<0.05),接近于FS组水平(P>0.05)。IL-1在各组大鼠背根神经节中未染色。结论:硬膜外腔植入异体髓核可引起背根神经节细胞TNF-α表达增加。
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页码:897 / 898+903+863 +903
页数:4
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