Effect of unilateral dentate nucleus lesions on amygdaloid kindling in rats.

Abstract:

:Amygdala kindling is used to investigate cerebellar dentate nucleus participation in the neuronal plasticity of the cerebrum. We studied the behavioral change, the occurrence of epileptiform events, and the duration of afterdischarge during amygdaloid kindling under control conditions and after a dentate lesion of the contralateral cerebellum. Our results indicate that the dentate lesion induced the facilitation of the behavioral development of the amygdaloid kindling, whereas there was only a slight increase in the duration of afterdischarge and the spontaneous epileptiform potential of the amygdala. There was a discrepancy between the behavioral kindling and the electroencephalographic epileptic activity. Therefore the dentate lesion must play a role in controlling the generalization mechanism of epilepsy. We also found that on a right amygdala that had been influenced by a left dentate lesion there were few spikes, while on the left amygdala there were frequent spikes. These results suggest that the dentate nucleus plays an important role in amygdaloid kindling as well as in the neuronal plasticity of the amygdala.

journal_name

Epilepsia

journal_title

Epilepsia

authors

Tsuru N,Kawasaki H,Genda S,Hara K,Hashiguchi H,Ueda Y

doi

10.1111/j.1528-1157.1992.tb02309.x

keywords:

subject

Has Abstract

pub_date

1992-03-01 00:00:00

pages

213-21

issue

2

eissn

0013-9580

issn

1528-1167

journal_volume

33

pub_type

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