神经形成

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。

During the years that she was writing this book, one incontrovertible means of neurogenesis came to light: aerobic exercise.

在她写这本书的这些年里，神经形成的一个不容置疑的方式，即有氧运动，已经显现出来。

During morphogenesis cells and cell populations change shape: an exampleis neurulation in vertebrate embryos, in which the edges of the flat neural plate fold upward and fuse, forming the beginnings of the hollow brain and spinal cord.

在形态发生期间，细胞和细胞群体形状发生改变：例如，脊椎动物的神经胚，扁平神经板的边缘向上折叠并融合，是中空大脑和脊髓神经形成的开端。

During morphogenesis cells and cell populations change shape: an example is neurulation in vertebrate embryos in which the edges of the flat neural plate fold upward and fuse forming the beginnings of the hollow brain and spinal cord.

在形态发生期间，细胞和细胞群体形状发生改变：例如，脊椎动物的神经胚，扁平神经板的边缘向上折叠并融合，是中空大脑和脊髓神经形成的开端。

Neurulation is an important stage in the embryo development of vertebrate, during which the ectoderm thickens into epidermal neural plate and then forms neural folds and neural tube.

脊椎动物胚胎发育过程中，神经胚期是一个重要的发育时期。这个阶段胚胎外胚层增厚形成上皮型神经板，神经板两侧隆起形成神经褶，随后神经褶两侧向背中线合拢并愈合成神经管。

"In some damaged brains, like after a stroke, there is no neurogenesis," he says.

"在一些受损的大脑内，例如中风后，没有了神经形成，"他说，我们感兴趣的是这些神经细胞从哪里来，以及我们是否可以刺激神经形成。

Researchers now know that neurogenesis is a normal feature of the adult brain.

研究者现在认识到神经形成是成人大脑的标准特征。

Induction neurogenesis has the potential for providing new insights into the cause and treatment of acute stroke syndromes.

诱导神经形成在急性中风综合症的起因与治疗方面具有相当的潜力。

Neurogenesis persists in two germinal regions in the adult mammalian brain, the subventricular zone of the lateral ventricles and the subgranular zone in the hippocampal formation.

在成年哺乳动物大脑中，神经形成发生在两个原始区域：脑室下区的侧脑室和海马结构的齿状回的颗粒区。

Each dorsal root has 8～10 rootlets, and every 4～5 rootlets formed 1～2 subbundles.

一个脊神经后根有8～10个神经小束组成，上位的4～5个神经小束形成1～2个神经亚束；下位的4～5个神经小束形成1～2个神经亚束。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。