The Effect of Ginkgo Biloba (EGb 761) on Epileptic Activity in Rabbits

Different animal models are used to evaluate the process of epileptogenesis. In this investigation the kindling model of epilepsy was used. The epileptic focus was induced in Chinchilla rabbits by stimulation of the hippocampus with electric stimuli. We presumed that the extracts of Ginkgo biloba af...

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Main Authors: Vesna Vasic, Mirjana Radenkovic, Nada Naumovic, Mira Popovic, Vesna Ivetic
Format: Article
Language:English
Published: MDPI AG 2008-10-01
Series:Molecules
Subjects:
Online Access:http://www.mdpi.com/1420-3049/13/10/2509/
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author Vesna Vasic
Mirjana Radenkovic
Nada Naumovic
Mira Popovic
Vesna Ivetic
author_facet Vesna Vasic
Mirjana Radenkovic
Nada Naumovic
Mira Popovic
Vesna Ivetic
author_sort Vesna Vasic
collection DOAJ
description Different animal models are used to evaluate the process of epileptogenesis. In this investigation the kindling model of epilepsy was used. The epileptic focus was induced in Chinchilla rabbits by stimulation of the hippocampus with electric stimuli. We presumed that the extracts of Ginkgo biloba affect the formation of kindling epilepsy. Bioelectric activity of the brain was registered throughout the development of kindling with and without standardized extracts from dried ginkgo leaves (EGb 761). For each animal the following has been determined: the values of the minimum current strength necessary for the origination of threshold after-discharge (AD) – discharges appearing after the cessation of stimulation; duration of the threshold AD; number of stimulations necessary for the origination of full kindling; time latency for the development of full kindling; number of spontaneous epileptogenic discharges manifested in EEG two days following the formation of full kindling during 60-minute registration. The results show that the process of epileptogenesis was influenced by EGb 761. It has been established that if the animals received EGb 761, significantly weaker minimum current strength was necessary for the development of the epileptogenic focus and the AD were longer, while the number of necessary electrostimulations for the appearance of full kindling was less and the latency was shorter.
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spelling doaj.art-41944c47ad964175a76222813f972afa2022-12-22T01:27:02ZengMDPI AGMolecules1420-30492008-10-0113102509252010.3390/molecules13102509The Effect of Ginkgo Biloba (EGb 761) on Epileptic Activity in RabbitsVesna VasicMirjana RadenkovicNada NaumovicMira PopovicVesna IveticDifferent animal models are used to evaluate the process of epileptogenesis. In this investigation the kindling model of epilepsy was used. The epileptic focus was induced in Chinchilla rabbits by stimulation of the hippocampus with electric stimuli. We presumed that the extracts of Ginkgo biloba affect the formation of kindling epilepsy. Bioelectric activity of the brain was registered throughout the development of kindling with and without standardized extracts from dried ginkgo leaves (EGb 761). For each animal the following has been determined: the values of the minimum current strength necessary for the origination of threshold after-discharge (AD) – discharges appearing after the cessation of stimulation; duration of the threshold AD; number of stimulations necessary for the origination of full kindling; time latency for the development of full kindling; number of spontaneous epileptogenic discharges manifested in EEG two days following the formation of full kindling during 60-minute registration. The results show that the process of epileptogenesis was influenced by EGb 761. It has been established that if the animals received EGb 761, significantly weaker minimum current strength was necessary for the development of the epileptogenic focus and the AD were longer, while the number of necessary electrostimulations for the appearance of full kindling was less and the latency was shorter.http://www.mdpi.com/1420-3049/13/10/2509/Kindling epilepsyGinkgo bilobaEGb 761Rabbits
spellingShingle Vesna Vasic
Mirjana Radenkovic
Nada Naumovic
Mira Popovic
Vesna Ivetic
The Effect of Ginkgo Biloba (EGb 761) on Epileptic Activity in Rabbits
Molecules
Kindling epilepsy
Ginkgo biloba
EGb 761
Rabbits
title The Effect of Ginkgo Biloba (EGb 761) on Epileptic Activity in Rabbits
title_full The Effect of Ginkgo Biloba (EGb 761) on Epileptic Activity in Rabbits
title_fullStr The Effect of Ginkgo Biloba (EGb 761) on Epileptic Activity in Rabbits
title_full_unstemmed The Effect of Ginkgo Biloba (EGb 761) on Epileptic Activity in Rabbits
title_short The Effect of Ginkgo Biloba (EGb 761) on Epileptic Activity in Rabbits
title_sort effect of ginkgo biloba egb 761 on epileptic activity in rabbits
topic Kindling epilepsy
Ginkgo biloba
EGb 761
Rabbits
url http://www.mdpi.com/1420-3049/13/10/2509/
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