Mossy fiber sprouting, hippocampal damage and spontaneous recurrent seizures in pentylenetetrazole kindling rat model.

Abstract:

AIM:The aim of this study was to determine the correlations among hippocampal damage, spontaneous recurrent seizures (SRS), and mossy fiber sprouting (MFS) using pentylenetetrazole (PTZ) kindling model. METHODS:Chronic epileptic model was established by administration of PTZ. Behaviour and EEG seizure activity were recorded. Rats' hippocampus were analyzed with haematoxylin and eosin (H&E) stain for histological lesions and evaluated for MFS with Timm stain. RESULTS:Prominent MFS was observed in area CA3 rather than the inner molecular layer in PTZ treated rats and the degree of MFS progressed with the development of behavioral kindled seizures. MFS preceded the occurrence of spontaneous seizures. No obvious neuronal necrosis and loss were observed in different regions of the hippocampus during kindling progression. CONCLUSION:MFS is not the outcome of SRS. Severe hippocampal damage is not required in the development of MFS and SRS.

journal_name

Acta Neurol Belg

journal_title

Acta neurologica Belgica

authors

Tian FF,Zeng C,Guo TH,Chen Y,Chen JM,Ma YF,Fang J,Cai XF,Li FR,Wang XH,Huang WJ,Fu JJ,Dang J

subject

Has Abstract

pub_date

2009-12-01 00:00:00

pages

298-304

issue

4

eissn

0300-9009

issn

2240-2993

journal_volume

109

pub_type

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