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Aspartate aminotransferase activity and glutamic dehydrogenase in the cerebellar cortex in several species of animals. A histochemical study

AuthorsMartínez-Rodríguez, Ricardo; García-Segura, Luis M. ; Toledano Gasca, Adolfo ; Martínez-Murillo, Ricardo
Issue Date1976
CitationJournal fur Hirnforschung 17: 387-397 (1976)
AbstractThe histochemical study of the consumption of glutamic acid by way of aspartate aminotransferase and glutamic dehydrogenase in the cerebellar cortex of several species of animals has demonstrated that in that nerve centre some structures exist in which the consumption mentioned is especially or exclusively realized by means of one way and not the other. It is also observed that in the rats, chickens and lizards the baskets that surround the Purkinje cells are constituted by basket cells axons and by recurrent collaterals of Purkinje axons and that those structures have an intense aspartate aminotransferase activity, but not glutamic dehydrogenase. The aspartate aminotransferase activity was not observed on the other side in the perikarya of the Purkinje cells of the related animals. However, there exists intense glutamic dehydrogenase activity. On the other hand, in the toad baskets with aspartate aminotransferase activity were not observed but this enzyme was presented on the other side in the perikarya of the Purkinje cells. All these observations suggest the possibility that this special utilization of glutamic acid is in some way concerned with the transmission phenomena of the nerve impulse.
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