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小猫对侧大脑损伤后皮质红核纤维发芽的形态学和电生理学研究

Morphological and electrophysiological study of sprouting of corticorubral fibers after lesions of the contralateral cerebrum in kitten.

作者信息

Kosar E, Fujito Y, Murakami F, Tsukahara N

出版信息

Brain Res. 1985 Nov 18;347(2):217-24. doi: 10.1016/0006-8993(85)90180-5.

DOI:10.1016/0006-8993(85)90180-5
PMID:2998552
Abstract

The appearance of crossed corticorubral projections following ablations of the ipsilateral cortex is shown to result from the formation of new connections and is not due to the preservation of pre-existing bilateral connections. At least some of these crossed projections are collaterals of the pyramidal tract. Post-tetanic potentiation can be demonstrated both intra- and extracellularly following ipsilateral cerebral peduncle stimulation whereas no changes in excitatory postsynaptic potential amplitude are observed following contralateral cerebral peduncle stimulation.

摘要

同侧皮质切除后出现的交叉皮质红核投射被证明是由新连接的形成所致,而非源于先前存在的双侧连接的保留。这些交叉投射中至少有一些是锥体束的侧支。同侧脑桥刺激后,在细胞内和细胞外均可显示强直后增强,而对侧脑桥刺激后,兴奋性突触后电位幅度无变化。

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Morphological and electrophysiological study of sprouting of corticorubral fibers after lesions of the contralateral cerebrum in kitten.小猫对侧大脑损伤后皮质红核纤维发芽的形态学和电生理学研究
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Preferential termination of corticorubral axons on spine-like dendritic protrusions in developing cat.
发育中的猫中,皮质红核轴突在棘状树突突起上的优先终止。
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