| IGF-1对大鼠坐骨神经再生早期的影响 |
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| 引用本文： | 李光振,朱刚,陈菁,冯华,王宪荣. IGF-1对大鼠坐骨神经再生早期的影响[J]. 第三军医大学学报, 2008, 30(11): 1025-1027 |
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| 作者姓名： | 李光振 朱刚 陈菁 冯华 王宪荣 |
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| 作者单位： | 1. 第三军医大学西南医院神经外科,全军神经系统疾病微创诊治专科中心,重庆,400038
2. 第三军医大学大坪医院野战外科研究所第六研究室,创伤、烧伤与复合伤国家重点实验室,重庆,400042 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 目的 探讨胰岛素样生长因子-1对大鼠坐骨神经再生早期的影响.方法 建立大鼠坐骨神经切割伤模型,通过硅胶管进行桥接,实验组于再生室内注入胰岛素样生长因子-1,对照组注入等量生理盐水,于术后3、5、7、9、11 d取材,用SABC免疫组化法检测轴突再生情况以及雪旺细胞数目、形态和排列方式的变化.结果 ①雪旺细胞:在对照组,术后3 d,断端间隙内仅可见少量雪旺细胞,术后7 d,雪旺细胞数量明显增多,术后11 d,整个间隙内的雪旺细胞排列呈有序的条索状.在实验组,术后3 d,雪旺细胞即明显增多,以后各相同时相点雪旺细胞数目均明显高于对照组.②再生轴突:在对照组,术后5 d,轴突开始长出,术后7 d轴突快速增长,至第11天,再生的轴突已长过5 mm的间隙到达神经远端.在实验组,术后3 d轴突即开始长出,9 d就快到达远端.结论 胰岛素样生长因子-1能促进轴突延伸和雪旺细胞增殖,明显促进坐骨神经再生.
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| 关 键 词： | 坐骨神经 再生 胰岛素样生长因子-1 |
Effect of insulin-like grow factor 1 on early regeneration of rat sciatic nerve |
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| LI Guang-zhen,ZHU Gang,CHEN Jing,FENG Hua,WANG Xian-rong. Effect of insulin-like grow factor 1 on early regeneration of rat sciatic nerve[J]. Acta Academiae Medicinae Militaris Tertiae, 2008, 30(11): 1025-1027 |
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| Authors: | LI Guang-zhen ZHU Gang CHEN Jing FENG Hua WANG Xian-rong |
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| Affiliation: | LI Guang-zhen1,ZHU Gang1,CHEN Jing2,FENG Hua1,WANG Xian-rong1(1Department of Neurosurgery,Southwest Hospital,2State Key Laboratory of Trauma,Burns , Combined Injury,Department 6,Institute of Surgery Research,Daping Hospital,Third Military Medical University,Chongqing 400038,China) |
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| Abstract: | Objective To investigate the role of insulin-like grow factor 1(IGF-1)on the regeneration of peripheral nerve after operation.Methods The right sciatic nerve of adult female SD rats was transected and bridged with silicone tube.IGF-1 was injected into the silicone tube in the treated group,while normal saline instead in control group,with 30 rats in each group.On postoperative day 3,5,7,9 and 11,the regeneration of axons was observed by SABC immunohistochemical methods with anti-neurofilment 200,and the pro... |
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| Keywords: | sciatic nerve regeneration insulin-like growth factor-1 |
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