Epilepsia experimental en pequeños animales

This work includes the chronic implantation of a nine electrode plug, on the skull of small animals, which had previously been treated as follows: one mi of aluminum oxide placed on the right anterior cerebral cortex. A pollyethylene tube was sometimes placed on each cerebral cortex to permit intrac...

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Main Authors: Gerardo González C., F. de Balbian Verster, A. Barros
Format: Article
Language:English
Published: Universidad Nacional de Colombia 1964-10-01
Series:Revista de la Facultad de Medicina
Subjects:
Online Access:https://revistas.unal.edu.co/index.php/revfacmed/article/view/22313
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author Gerardo González C.
F. de Balbian Verster
A. Barros
author_facet Gerardo González C.
F. de Balbian Verster
A. Barros
author_sort Gerardo González C.
collection DOAJ
description This work includes the chronic implantation of a nine electrode plug, on the skull of small animals, which had previously been treated as follows: one mi of aluminum oxide placed on the right anterior cerebral cortex. A pollyethylene tube was sometimes placed on each cerebral cortex to permit intracraneal drug administration. E. E.G. recordings were made with unrestrained animals. 1. In the cortical area where the alumina had placed, an initial decrease in voltage was observed during the first four days. Four days later desynchronization of the background electrical activity increased voltage and localization of the primary focus were observed. 2. In the period from eight to twelve days after the alumina application, the animals developed an increased of voltage in the corresponding area of the contra lateral hemisphere. This corresponded to the development of a secondary or mirror" focus which was fully developed in about two days. its discharge at first depended on the primary focus but became independent in 10 to 15 days. 3. Two to three months after the alumina application, the electrical activity in the primary focus began to decrease and had disappeared almost completely after four months. 4. Any studies for the purpose of observing changes in electrical activity of the primary focus, should be done within the first three months after alumina application. On the other hand the secondary focus continues to fire for at least one year.
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spelling doaj.art-39cf26fb7dae4d2eb42da2998287b6a92022-12-21T18:55:44ZengUniversidad Nacional de ColombiaRevista de la Facultad de Medicina0120-00112357-38481964-10-013249910820042Epilepsia experimental en pequeños animalesGerardo González C.0F. de Balbian Verster1A. Barros2Universidad Nacional de ColombiaUniversidad Nacional de ColombiaUniversidad Nacional de ColombiaThis work includes the chronic implantation of a nine electrode plug, on the skull of small animals, which had previously been treated as follows: one mi of aluminum oxide placed on the right anterior cerebral cortex. A pollyethylene tube was sometimes placed on each cerebral cortex to permit intracraneal drug administration. E. E.G. recordings were made with unrestrained animals. 1. In the cortical area where the alumina had placed, an initial decrease in voltage was observed during the first four days. Four days later desynchronization of the background electrical activity increased voltage and localization of the primary focus were observed. 2. In the period from eight to twelve days after the alumina application, the animals developed an increased of voltage in the corresponding area of the contra lateral hemisphere. This corresponded to the development of a secondary or mirror" focus which was fully developed in about two days. its discharge at first depended on the primary focus but became independent in 10 to 15 days. 3. Two to three months after the alumina application, the electrical activity in the primary focus began to decrease and had disappeared almost completely after four months. 4. Any studies for the purpose of observing changes in electrical activity of the primary focus, should be done within the first three months after alumina application. On the other hand the secondary focus continues to fire for at least one year.https://revistas.unal.edu.co/index.php/revfacmed/article/view/22313epilepsia
spellingShingle Gerardo González C.
F. de Balbian Verster
A. Barros
Epilepsia experimental en pequeños animales
Revista de la Facultad de Medicina
epilepsia
title Epilepsia experimental en pequeños animales
title_full Epilepsia experimental en pequeños animales
title_fullStr Epilepsia experimental en pequeños animales
title_full_unstemmed Epilepsia experimental en pequeños animales
title_short Epilepsia experimental en pequeños animales
title_sort epilepsia experimental en pequenos animales
topic epilepsia
url https://revistas.unal.edu.co/index.php/revfacmed/article/view/22313
work_keys_str_mv AT gerardogonzalezc epilepsiaexperimentalenpequenosanimales
AT fdebalbianverster epilepsiaexperimentalenpequenosanimales
AT abarros epilepsiaexperimentalenpequenosanimales