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[急性低氧性缺氧时脑干网状结构神经元树突的超微结构]

[Ultrastructure of the dendrites of neurons of the brain stem reticular formation in acute hypoxic hypoxia].

作者信息

Tumanskaia L M

出版信息

Arkh Anat Gistol Embriol. 1978;74(3):67-72.

PMID:646654
Abstract

In 45 adult rats (Wistar strain) neuronal dendrites of the reticular formation were studied electron microscopically at an acute hypoxic hypoxia. Structural changes in neurons of the reticular formation, were demonstrated to begin, as a rule, in the terminal portions of the dendrites. Dystrophic and destructive changes in dendrites are always more pronounced than in the pericaryon and are not infrequently they terminate in destruction of cytoplasmic islets. Submicroscopic changes in the dendrites are classified according to the dynamics of their development. Taking into consideration a specific role of the neuronal dendrites of the reticular formation under certain physiological conditions, it is possible to conclude that dendritic damage is of major importance in functional disturbance of the reticular formation at hypoxic hypoxia.

摘要

在45只成年大鼠(Wistar品系)中,利用电子显微镜对急性低氧性缺氧状态下网状结构的神经元树突进行了研究。结果表明,网状结构神经元的结构变化通常始于树突的末端部分。树突的营养不良性和破坏性变化总是比胞体更为明显,而且它们常常导致细胞质岛的破坏。根据树突发育的动态变化对其亚微观变化进行了分类。考虑到在某些生理条件下网状结构神经元树突的特定作用,可以得出结论,在低氧性缺氧时,树突损伤在网状结构的功能紊乱中起主要作用。

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Arkh Anat Gistol Embriol. 1978;74(3):67-72.
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