轴突

Large numbers of experiments internal and external had confirmed both direct current and square pulse of distal end cathodal could improve peripheral nerve regeneration, because it could speed up transmigration, creeper, growth and development of cell Schwann, derivate growth of nerve fiber; it also increased blood capillary of epineurium, brood blood vessel, amendment ischemic of impaired nerve, it still could accelerate Wallerian

国内外大量的基础实验及临床研究都证实远端负极电流的直流电场及脉冲电场等均有促进周围神经再生的作用，认为其可加速Schwann细胞的游走、爬行及生长发育，诱导神经纤维的生长；电刺激还能促使神经外膜毛细血管数量增多，扩张血管，改善神经损伤段缺血状态，并加速Wallerian变性及崩解组织的清除，为Schwann细胞发育和髓鞘化过程提供充足的能量与物质，同时为神经轴突的再生提供良好的内环境；在神经断端出现瘢痕或神经瘤时，电刺激可增加神经纤维穿越瘢痕的能力。

Objective:To investigate the expression of axon guidance cue slit-2 mRNA, and the ethology and morphology changes in different phases of spinal cord injury development.

目的：研究脊髓损伤后轴突导向因子slit-2的表达变化，同时观察大鼠行为学及脊髓形态学的变化特点？

Neural cell adhesion molecule L1, discovered in the 80s, is one of the matters that can promote nerve regeneration. It can mediate the interaction of cell-to-cell and cell-to-matrix, take great efforts on neurite outgrowth and fasciculation, migration of neural cells, formation of the myelin, structure of neural trace, transmembrane signal transduction, inhibiting apoptosis of neural cells, even on immune system and formation of the tumor. Li is discovered on the mouse's Cerebellar membrane primarily. Thereafter, it also is found in post- mitotic neurons, pre- and non-myelinating Schwann cells and so on.

神经细胞粘附分子L1（L1）是80年代发现的具有促进神经再生作用的物质，它能介导神经细胞与神经细胞之间的粘附，在神经轴突的生长、聚集，神经细胞的转移，纤维髓鞘的形成，神经通路的构建及信号的转导，抑制神经细胞的凋亡甚至在免疫系统、肿瘤的发生等方面均具有非常重要的作用。L1最初是从小鼠的小脑膜中发现，后来发现在有丝分裂后的神经元，髓鞘形成前及非形成髓鞘的雪旺细胞等组织中同样存在。

Objective To observe and analyze the expression of fasciculation and elongation protein zeta-1 (FEZ1) gene in purified type-1 astrocytes (T1A) and type-2 astrocytes (T2A).

目的 探讨轴突成束和延伸蛋白ζ-1（FEZ1）基因在1型和2型星形胶质细胞（T1A、T2A）中的表达差异，及其在新生SD大鼠中枢神经系统中的表达。

We observed highly significant changes of fiber orientations at regions that correspond to the superior longitudinal fasciculus during the first 5 years.

我们发现在出生后的开始5年，上纵束相关纤维束的区域定向发生明显改变。这个结果说明上纵束的轴突和髓鞘发育很慢，而这个区域被认为和语言功能相关。

Shortly after the publication of Hodgkin and Huxley's equations for the squid giant axon, Richard FitzHugh was working at the Biophysics Laboratory of the National Institutes of Health in Bethesda, Maryland.

之后不久出版霍奇金淋巴瘤和赫胥黎的方程为巨型鱿鱼轴突，理查德菲茨休工作在生物物理实验室，国家卫生研究院在马里兰州贝塞斯达。

These results support the idea that in the human fetal forebrain axonal PSA-NCAM expression is inversely related to primary myelination.

这些结果支持人的胎儿前脑轴突中PSA-NCAM的表达反而与最初的髓鞘形成有关的观点。

The areas, grey levels of NSE in the cell bodies and the numbers of axons in the anterior funiculus were measured and the statistical analysis showed the significance difference.

图像分析了脊髓前角运动神经元胞体内 NSE的面积、灰度和脊髓前索内轴突的数量，其结果具有显著性差异。

Results In both groups after injury, several changes on oculomotor nerve occurred including number reduction of neurons, dispersion in distribution, disappearance of sub-nuclear structure, structure destruction of fibers and myelin sheath, neurite gemmation, and specificity decrease in fibers distribution, while all these changes in section-suture group were more obvious.

结果 不同损伤均可导致神经元的数量减少，分布散乱，亚核分布结构改变，神经纤维和髓鞘的结构破坏，轴突芽生及再生纤维分布的特异性降低，而且上述改变在神经切断组更加明显。

THUS FAR WE HAD confirmed that glia sense axon activity by taking in calcium.

至此我们确认了神经胶细胞是以钙离子流入细胞的方式感知轴突的活动。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷