Quantitative observation on reconstruction of host spinal cord neuropil after embryonic spinal cord transplantation with electron microscopy 胚胎脊髓移植对宿主脊髓神经毡结构重筑的电镜定量观察
Neuropil was partially damaged and major dense lines of myelin sheath were separated; 神经毡局部破坏;
Results In infarcts of rats in infarction group, the expression of GAP 43 increased markedly and there were a large number of dead neurons, damaged neuropil and severe edematous tissue 1 day after onset of infarction. 结果脑梗死后1d,梗死区GAP43的表达明显增多,梗死灶处颞叶新皮层神经元分层排列消失,神经元数量明显减少,神经毡被破坏,组织严重水肿;
R_ ( 7a) approximate many features of R_ ( 1-6) cells, which have a larger, cell body, rhabdomere and axon, terminate in the first optic neuropil ( lamina). R(7a)的细胞体、感杆和轴突较大,它与外周小网膜细胞R(1~6)相同,其轴突终止在第一视神经节(薄板);
Compared with infarction group, the expression of GAP 43 increased more markedly, and the damage of neuropil and the edema of tissue were alleviated in infarcts of rats in batroxobin group. 巴曲酶使梗死区GAP43的表达进一步增多,并可减轻梗死灶神经毡的破坏和组织水肿。
The present study have observed the fine structure of the neuroglial and neuronal processes of the hippocampal neuropil in the rats by using the technique of electron microscopy. The spinules were encountered in the neuroglial processes for the first time. 用电镜技术观察了大白鼠海马神经毯内的神经胶质突起与神经元突起的超微结构。首次发现有的神经胶质棘状突起上有小棘结构。
Most ofthe fibers in the neuropil are unmyelinated, and myelinated fibers are scarce. 神经毡内无髓纤维最多,有髓纤维稀少。
In addition, there were obvious degeneration and necrosis of the organelles and the appearance of pulpiform bodies in the area of neuropil in the aged group, but after the treatment of ginsenoside these symptoms were significantly reduced. 此外,老龄组神经元内线粒体等细胞器出现明显变性、坏死、突触变性,神经毡内出现髓样体,膜性结构等异常改变;而给药组上述改变均见明显减轻或不出现。
The functional significance of synapse and neuropil in different developmental periods is discussed in the paper. 本文对不同发育阶段突触和神经毡的机能意义进行了讨论。
The neuropil of man was well developed with various kinds of vesicles in the nerve terminals. 超微结构显示:人缰量核内,神经毡最发达,神经终末内小泡种类最多。
Ultrastructural study of the neuropil in ventrolateral PAG in the rat 大鼠中脑水管周围灰质腹外侧部神经毡的超微结构研究
Quantitative Study on Mitochondria and Synaptic Vesicle in Neuropil of Occipital Cortex of Visual Area 枕叶视皮质神经毯内线粒体和突触小泡的定量研究
An ultrastructural study of the relationship between the neuroglial and neuronal processes in the hippocampal neuropil of the rat 大白鼠海马神经毯内神经胶质突起与神经无突起间关系的超微结构研究
Results With the time passing by, the PVN presented dynamic changes: Cell pycnosis became more and more obvious, the neuropil continuously extended and the quantity of the neurogliocyte continuously increased after ischemia-recirculation. 结果脑缺血再灌流后,随着时间的延长,室旁核呈动态变化:细胞固缩越来越明显,神经毡不断增加,神经胶质细胞不断增多,无炎性细胞。
Electron microscopic observation shown that nerve cells in the tumor tissues were heteromorphies, there were a great number of neurotubules and synapse-like endings containing a plenty of small round clear neurotransmitter vesicles and few dense core secretory granules were seen in the neuropil. 电镜检查显示下丘脑错构瘤组织内神经细胞形态异常,神经毡内可见突触样结构内含大量清亮圆形的神经递质小泡和少量致密核心的分泌颗粒。
Results Observation under light microscope showed Neuropil rarefaction and edema around small vessels were observed 3 h after ischemia. Rupture and hemorrhage of the small arteries in core regions 3 h after ischemia and 3 h reperfusion. 结果光镜下:缺血3h可见神经毡疏松,小血管周围水肿,缺血12h再灌注3h可见缺血中心区小动脉破裂出血。
Ultrastructure of hippocampal CA3region: the control group neurons have rich nuclear matrix, rich organelles in the cytoplasm; neuropil processes pack tightly, and have alot of synapses. 海马CA3区超微结构:对照组神经元核基质丰富,胞质内细胞器丰富;神经毡突起排列紧密,突触数量多。
the complex network of unmyelinated axones, dendrites, and glial branches that form the bulk of the central nervous system's grey matter and in which nerve cell bodies are embedded