| 1. | It has been shown that light deprivation affects synaptic connections of ganglion cells in the mammalian retina , but little is known about impacts of visual deprivation on bipolar cell development 目前已经有人证实,初生时期失去光照会影响哺乳动物神经节细胞的突触连结,但是却很少有对双极细胞影响的相关研究。 |
| 2. | But how could the glia in our experiment be detecting the neuronal firing , given that the axons made no synaptic connections with the glia and the axonal glia were nowhere near the synapse 不过轴突并没有突触与神经胶细胞接触,而且轴突上的神经胶细胞又离突触那麽远,我们实验中的神经胶细胞如何才能够侦测神经元的活性呢? |
| 3. | And he wonders whether the epilepsy that can occur in stroke and trauma patients , often years after the injury , results from unsuccessful attempts by the progeny of neural stem cells to make synaptic connections with other cells in the damaged region 而且他漫想是否癫痫会出现在中风和创伤病人,常常是受伤之后的许多年,原因是神经干细胞的子代尝试与损伤区域的细胞建立突触连接失败。 |
| 4. | Moving from hebb ' s theory to sorting out the actual mechanics of this process , however , one again confronts the fact that the enzymes and proteins that strengthen or weaken synaptic connections during brain wiring must be synthesized from specific genes 不过,从赫柏的理论到?清整个过程中的实际机制,会再度面临一个事实,那就是在脑建立线路的过程中,那些会强化或削弱突触连结的酵素与蛋白质,都必须经由特定的基因来合成。 |
| 5. | The results suggest that visual experience has a facilitating effect on morphological differentiation of bipolar cells , and early mature bipolar cells could provide light dependent signals to guide synaptic connections of ganglion cells in the inner retina 本篇结果证明了视觉经验可促进双极细胞的形态发育,并可进而推论早期成熟的双极细胞提供了光传入视网膜的讯号,再进一步去影响内层视网膜中神经节细胞在发育过程中的突触连结。 |
| 6. | But there are still no reports about the relationships of dnpi - like and gabaergic immunoreactive ( gad - li ) terminals with pag - like immunoreactive ( pag - li ) neurons in " zone - shaped area " . to answer these questions , we observed systemically the synaptic connections among the pv - like immunoreactive neurons , fibers and terminals and the connections between dnpi - like , gabaergic terminals and pag - li neurons using the methods of electron microscopic imrnunohistochemistry , triple - immunofluorescence histochemistry and retrograde tracing method combined with pre - embeded immunoelectron microscopic double - labeled technique 但是目前对新发现的囊泡膜mu转运体一dnn样阳性终末与带状区内pag样阳性神经元之间ej关系,以及谷氨酸脱发酶( gad ,是gaba能神经元和终末的特异性标识物)是否参与其调控作用,尚缺乏系统的形态学资料。 |
| 7. | Part i the electron microscope study of the synaptic connections of pan albumin - like immunopositive structure in the second - / third - nuclei on the central pathway of the trigeminal proprioceptive sensation of the rat the present study examined that the synaptic connections of pv - like immunoreactive ( pv - li ) neuronal cell bodies , fibers and terminals on the second - / third - order nuclei of this pathway by using electron microscopic immunohistochemical method 结果如下: 1在vodln l肚区及带状区(包括vpdm 、 vsllp cl 、 ado 、 avm )内均可观察到大量的pv样阳性神经元的树突和轴突终末, pv样阳性胞体较少。 |
| 8. | Firstly , in the luminosity - type horizontal cell ( lhc ) of isolated carp retina , we found : 1 ) repetitive red flashes progressively strengthened the synaptic connection between red - cone and lhc , whereas weakened that between green - cone and lhc ; 2 ) repetitive green flashes remarkably depressed the lhc ' s red response , but caused little changes in the cell ' s green response R / g型水平细胞( r / ghc )为一种色度型水平细胞,至于r / ghc与不同视锥的突触回路连接,经典的级联模型认为r / ghc只接收来自绿敏视锥的直接输入,对红光去极化反应来源于lhc对绿敏视锥的负反馈。 |
| 9. | But how about the morphological feature and the relationship between the pv - li and other neurons in the second - / third - order relay nuclei . what the synaptic connection between the pv - li and the neurons projecting to the thalamus . it is well known that glutamate ( glu ) is a major excitatory neurotransmitter in mammalian cns 但是二、第四军医大学硕士学位论文三级中继核团内pv样阳性神经元的形态学特征及pv样阳性结构与其它神经元、纤维和终末的联系究竟如何,它们与向丘脑投射的神经元形成怎样的突触联系都是值得探讨的问题 |