求翻译：神经细胞凋亡是脑缺血性损伤的重要机制，通过各种途径阻止细胞凋亡可以减轻脑损害。本实验结果显示，未进行UCBMSCs注射的对照组大鼠近期神经功能也有一定程度改善，分析与脑的可塑性和自然修复有关。治疗组改善更明显。一般认为干细胞治疗脑梗死的机制如下[6] ：①直接分化成神经元，修复神经组织结构，发挥功能替代作用；② 促进血管再生，重建血流循环；③ 营养神经组织，促进轴突的再生和髓鞘的形成；④ 调控基因，建立神经通路；⑤ 减少细胞凋亡，减少瘢痕组织产生。 干细胞注射的时机尚无定论。是什么意思？

Neuronal apoptosis is an important mechanism of cerebral ischemic injury , prevent apoptosis through a variety of ways you can reduce brain damage.

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The nerve cell perishes is weakly the brain anemic damage important mechanism, perishes weakly through each way impediment cell may reduce the brain harm.This experimental result showed, has not carried on the UCBMSCs injection the control group big mouse the nerve function also will have certain de

Apoptosis is an important mechanism of cerebral ischemic injury and prevents apoptosis through a variety of ways you can reduce brain damage. These results showed that rats in the control group did not UCBMSCs injection there is also some improvement in neurological function in the near future, and

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