甲钴胺治疗非压迫性腰椎间盘突出症的实验研究

被引:24
作者
陆志东
谭希鹏
机构
[1] 宁夏医科大学附属医院
关键词
甲钴胺; 痛觉过敏; 脱髓鞘; 组织学;
D O I
10.13621/j.1001-5949.2011.03.031
中图分类号
R681.53 [];
学科分类号
摘要
目的在无机械压迫情况下,甲钴胺对大鼠自体髓核导致的神经根损伤有无修复作用。方法选择10月龄SD雄性大鼠24只,随机分成对照组、模型组、甲钴胺治疗组,每组8只。切开大鼠尾椎椎间盘,髓核呈胶冻样,取5个髓核并加入50μl生理盐水,充分搅拌稀释成混悬液备用,将混悬液注射到大鼠腰椎硬膜外腔制作动物模型。24只SD雄性大鼠随机分成对照组、模型组和甲钴胺干预组,分别将生理盐水、尾椎髓核混悬液注射到腰椎硬膜外腔,甲钴胺治疗组用甲钴胺(500μg/kg)注射液,每天腹腔内注射共20d。测定大鼠后肢机械刺激缩爪阈值和疼痛相关行为,20d后观察神经根的组织形态学变化。结果在无机械压迫情况下,硬膜外移植自体髓核能使大鼠后肢产生明显的痛觉过敏,神经根出现脱髓鞘改变;甲钴胺可以明显减轻大鼠的痛觉过敏,促进髓鞘再生。结论甲钴胺对自体髓核致神经根的脱髓鞘损伤有修复作用。
引用
收藏
页码:219 / 221+188 +188
页数:4
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