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1.
s.l; s.n; 1990. 10 p. ilus, graf.
Non-conventional in English | LILACS | ID: lil-223643

ABSTRACT

Rats (n=11) with bilateral kainate lesions of the caudate nucleus and subsequen unilateral transplantation of embryonic striatal tissue into the damaged area prefered 4 months later to reach for food with the forepaw contralateral to the graft. No such asymmetry was observed in lesioned, nontransplanted (n=8) or unoperated (n=5) control rats. Good integration of the graft with the host brain was indicated by the fnding that cortical spreading depression did not enter the lesioned caudate nucleus but did penetrate into the lesioned caudate with the graft almos as regulary as in intact rats. Behavioral asymmetry produced by unilateral grafts in bilaterally lesioned animals reveals the effects of transplantation with more sensitivity than the graft-induced compensation of the asymmetries caused by unilateral lesions


Subject(s)
Animals , Caudate Nucleus , Corpus Striatum , Rats , Transplants , Disease Models, Animal
2.
Rev. Hosp. Psiquiátr. La Habana ; 26(3): 353-62, jul.-sept. 1985.
Article in Spanish | LILACS | ID: lil-27215

ABSTRACT

El estudio de los mecanismos de propagación de la crisis epiléptica, es de importancia para el conocimiento del desarrollo de las crisis clínicas y electroencefalográficas desde su inicio, ya en forma explosiva o a punto de partida de las descargas interictales, permitiendo explicar al mismo tiempo la forma en que estos ataques tienen lugar en diferentes pacientes. En el presente trabajo se discuten las distintas posibilidades que se han planteado en relación a estos mecanismos, particularizando en los mecanismos intracorticales de propagación, los que tienen lugar a través de vías extracorticales largas y el papel que juegan un conjunto de estructuras facibilatoras e inhibidoras del sistema nervioso central (SNC)


Subject(s)
Humans , Epilepsy/physiopathology , Electrophysiology
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