宗兆文,廖维宏,伍亚民,曾琳,龙在云.功能训练促进颈脊髓损伤大鼠功能恢复的机制研究[J].中国脊柱脊髓杂志,2006,(10):I0001-I0002.
功能训练促进颈脊髓损伤大鼠功能恢复的机制研究
Mechanisms of functional recovery due to forelimb training after cervical spinal cord injury in rats
  
DOI:10.3969/j.issn.1004-406X.2006.10.I0001.0
中文关键词:  脊髓损伤  可塑性  出芽  功能训练  大鼠
英文关键词:Spinal cord injury  Plasticity  Sprouting  Training  Rat
基金项目:
宗兆文  廖维宏  伍亚民  曾琳  龙在云
第三军医大学大坪医院野战外科研究所创伤、烧伤与复合伤国家重点实验室第三研究室,重庆市400042
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中文摘要:
  目的:探讨大鼠颈脊髓不完全性损伤后前肢功能训练促进大鼠前肢功能恢复的机制.方法:在立体定位仪的引导下,致伤大鼠双侧红核和皮质脊髓背侧束后,对大鼠行前肢功能训练6周.免疫组化检测损伤脊髓节段脑源性神经生长因子(brain-derived neurotrophic factor,BDNF)的表达,皮质脊髓束投射神经元(corticospinal neurons,CSNs)中生长相关蛋白43(growth-associated protein 43,CAP43)和神经营养素共同受体P75(P75NTR)的表达,荧光金逆行示踪CSNs存活情况.结果:大鼠不完全性颈脊髓损伤后,前肢功能训练可上调脊髓前角神经元BDNF与CSNs中GAP43和P75NTR的表达,减少CSNs死亡.结论:大鼠颈脊髓不完全性损伤后,前肢功能训练通过上调脊髓前角神经元BDNF与CSNs中GAP43和P75NTR的表达以及减少CSNs的死亡等机制增加未损伤皮质脊髓腹侧束(vCST)的出芽,进而促进大鼠前肢功能恢复.
英文摘要:
  Objective:To explore the possible mechanisms of functional recovery due to forelimb training after incomplete cervical spinal cord injury(iCSCI) in rats.Method:Under the guide of Stereotaxical,the red nuclei and cervical dorsal corticospinal tract(dCST) w
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