电镜观察再生神经纤维的髓鞘形成。
Myelination on regenerated nerve fibers was investigated under electronic microscope.
髓鞘形成通常出现在脑干、丘脑和内囊后肢。
Myelination is usually present in the brainstem, thalamus, and posterior limbs of the internal capsules.
这里它作为“组织中心”将髓鞘形成的必要蛋白聚集起来。
There it acts as an "organising centre", bringing together key proteins essential for myelination.
神经元轴突因子对中枢神经系统的髓鞘形成发挥重要作用。
Neuron axonal signals play an important role in myelination of central nervous system.
负责执行功能的大脑分区（负责执行复杂步骤以完成某项任务）是最后完成髓鞘形成过程的。
The part of the brain responsible for executive functions(doing complex sets of steps to complete tasks, for example) is the last part to compete the myelination process.
在经典型PMD中，MRI异常改变在多年后都保持稳定或仅有轻微的进展，这是因为其病因在于髓鞘形成不良而不是脱髓鞘。
In classic PMD, the MRI findings tend to be stable or mildly progressive over years since the primary problem is hypomyelination rather than demyelination.
典型的虎斑状改变是由于正常髓鞘形成的区域和髓鞘形成不良的区域交杂在一起所致，可以在MRI上看到，但是这种改变并不是PMD独有的。
The classic "tigroid" appearance that is the result of heterogeneous areas of myelination and dysmyelination may be seen on MRI but this finding is not exclusive to PMD.
最后,回想一下髓鞘的形成,你会在哪里长出脂肪鞘,去包裹神经元,使得神经元更有效率
Finally, remember myelination, where you sort of get this fatty sheath over your neuron to make it more effective?
缺血后脑的病理改变以神经细胞变性、固缩和退变，皮层下白质的神经纤维和髓鞘溃变为主，普遍存在胶质细胞增生，形成胶质小结。
There were obvious pathological change in the brain after the chronic cerebral hypoperfusion, such as myelinic degeneration and formation of glial nodule in white matter.
处死后，用特殊的抗体和髓鞘尼氏染色法处理脊髓切片，分析骨髓基质细胞移植物大小、组织保留情况、宿主免疫反应和神经胶质疤痕形成情况。
After sacrifice, spinal cord sections were analyzed for MSC graft size, tissue sparing, host immune response, and glial scar formation, using specific antibodies and Nissl-myelin staining.
腓肠神经半薄切片未见明显洋葱球样结构形成，可见有髓纤维密度明显减少，大量薄髓鞘有髓神经纤维和有髓神经纤维再生簇形成。
Semithin transverse sections of sural nerve showed a decreased density of large myelinating fibers and a large number of clusters of mostly thinly myelinated axons.
结论环己酮草酰二腙可诱导大鼠脑白质脱髓鞘、空泡样变，呈时间剂量相关性，随着时间延长和累积剂量增加，细胞凋亡及空泡形成增多；
It was related to the dosage and time. Along with the time extension and the cuprizone dosage increasement, the cell apoptosis increased and the demyelination aggravated.
结论：中枢神经系统存在偏利现象，这种偏利现象可能与控制视神经髓鞘优先形成的某种遗传机制有关，或是中枢神经系统突触的局部构造、突触效能的差异。
Conclusion:There was lateralization in the central nervous system. The lateralization may be a reflection of differences in the topological organization of the synapses or in synaptic efficacy.
结论：中枢神经系统存在偏利现象，这种偏利现象可能与控制视神经髓鞘优先形成的某种遗传机制有关，或是中枢神经系统突触的局部构造、突触效能的差异。
Conclusion:There was lateralization in the central nervous system. The lateralization may be a reflection of differences in the topological organization of the synapses or in synaptic efficacy.
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