Matching of motor-sensory modality in the rodent femoral nerve model shows no enhanced effect on peripheral nerve regeneration.

Matching of motor-sensory modality in the rodent femoral nerve model shows no enhanced effect on peripheral nerve regeneration.
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DOI:
10.1016/j.expneurol.2010.01.016
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发表时间:
2010-06
影响因子:
5.3
通讯作者:
Mackinnon, Susan E.
Mackinnon, Susan E.
中科院分区:
医学2区
文献类型:
--
作者:
Kawamura, David H.;Johnson, Philip J.;Moore, Amy M.;Magill, Christina K.;Hunter, Daniel A.;Ray, Wilson Z.;Tung, Thomas H. H.;Mackinnon, Susan E.

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周围神经损伤伴神经间隙的治疗主要包括利用感觉神经供体的自体神经移植。这一临床实践的基础是假设自体感觉移植为运动神经元再生提供了合适的底物,从而促进了运动终板的再支配和功能恢复。本研究考察了神经移植方式在轴突再生中的作用,比较了Lewis大鼠运动神经、感觉神经和混合神经同种异体移植后的运动神经再生。共100只大鼠接受了股神经运动或感觉支的移植,并在5、6或7周后进行了组织形态计量学分析。分析显示,在所有三个时间点,运动神经、感觉神经和混合神经移植物的神经再生情况相似。这些数据表明,在大鼠股神经中匹配运动-感觉模式并不能通过神经同种异体移植来促进轴突再生。
The treatment of peripheral nerve injuries with nerve gaps largely consists of autologous nerve grafting utilizing sensory nerve donors. Underlying this clinical practice is the assumption that sensory autografts provide a suitable substrate for motoneuron regeneration, thereby facilitating motor endplate reinnervation and functional recovery. This study examined the role of nerve graft modality on axonal regeneration, comparing motor nerve regeneration through motor, sensory, and mixed nerve isografts in the Lewis rat. A total of 100 rats underwent grafting of the motor or sensory branch of the femoral nerve with histomorphometric analysis performed after 5, 6, or 7 weeks. Analysis demonstrated similar nerve regeneration in motor, sensory, and mixed nerve grafts at all three time points. These data indicate that matching of motor-sensory modality in the rat femoral nerve does not confer improved axonal regeneration through nerve isografts.
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