冲程(发动机)
中风恢复
运动皮层
皮质脊髓束
神经发生
生物
脊髓损伤
脊髓
少突胶质细胞
解剖
病变
神经可塑性
神经干细胞
后肢
作者
Chuansheng Zhao,Shanshan Zhao,Meiting Guan,Xi Cheng,Huibin Wang,Chang Liu,Shanshan Zhong,Zhike Zhou,Yifan Liang
标识
DOI:10.1016/j.brainres.2020.147016
摘要
Forced limb use, which forces the use of the impaired arm following stroke, improves functional recovery. The study was designed to investigate the mechanisms of recovery underlying forced impaired limbuse. Furthermore, forced unimpaired arm use was also performed in order to explore its effect on functional behavior. We hypothesized that forced forelimb use could improve functional recovery in rats that have had an experimentally induced ischemic stroke, through promoting the recruitment and differentiation of the oligodendrocyte progenitor cells (OPCs). Indeed the proliferation of Olig2 and NG2 positive cells, as well as the expression of myelin basic protein (MBP)were increased in the perilesional striatum, whereas quantitative changes of Olig2+ and NG2+ oligodendrocyte progenitor cells was not observed in the subventricular zone. Through comparing rats forced to rely on affected or unaffected forelimb, the results demonstrated that forced impaired limb use boosted functional recovery. At the same time forced unimpaired limb use deteriorated limb movement of injured side. In addition, the expression of NogoA is reduced, when the injured limb was used more, suggesting that it played a role in the repair of white matter.
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