| Perirhinal cortical kindling in rats with genetic absence epilepsy. | |
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MedLine Citation:
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PMID: 20560164 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Two genetic models of absence epilepsy, GAERS and WAG/Rij rat strains, are resistant to progression of partial seizures induced by amygdaloid or hippocampal kindling. Perirhinal cortex is one of the crucial areas for the secondary generalization of partial seizures. Therefore we focused on perirhinal cortical kindling in both epileptic rat strains and examined whether the resistance to limbic epilepsy is restricted to the amygdala and hippocampus or whether it can also occur with perirhinal cortical kindling. The mean afterdischarge (AD) thresholds were significantly higher in WAG/Rij and GAERS compared to the Wistar rats. Analysis of the rate of perirhinal cortical kindling for the 3 strains indicated highly significant differences. The mean number of stimulations for the development of the first stage 2, 3, 4 or 5 seizures was significantly higher in WAG/Rij and GAERS groups than in Wistar rats. Further, the cumulative total duration and number of SWDs increased during the first epoch of the post-stimulation period at the first stage 2 and 4/5 seizures in the WAG/Rij and GAERS rats compared to the pre-stimulation period. The higher AD threshold and delays to all stages of kindling in WAG/Rij and GAERS indicate that the perirhinal cortex is a part of the circuits involved in the kindling resistance in genetic models of absence epilepsy. |
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Authors:
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Ozlem Akman; Ayse Karson; Rezzan Gulhan Aker; Nurbay Ates; Filiz Yilmaz Onat |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Neuroscience letters Volume: 479 ISSN: 1872-7972 ISO Abbreviation: Neurosci. Lett. Publication Date: 2010 Jul |
Date Detail:
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Created Date: 2010-06-17 Completed Date: 2010-10-14 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7600130 Medline TA: Neurosci Lett Country: Ireland |
Other Details:
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Languages: eng Pagination: 74-8 Citation Subset: IM |
Copyright Information:
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Copyright 2010 Elsevier Ireland Ltd. All rights reserved. |
Affiliation:
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Istanbul Bilim University, Faculty of Medicine, Department of Physiology, Istanbul, Turkey. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Disease Models, Animal Electric Stimulation Electrodes, Implanted Electroencephalography Epilepsy, Absence / physiopathology* Kindling, Neurologic / physiology* Male Rats Rats, Transgenic Rats, Wistar Seizures / physiopathology Severity of Illness Index Species Specificity Temporal Lobe / physiopathology* Time Factors |
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