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1. [Synaptic localization of 5'-nucleotidase activity in the cerebellar cortex in adult rats irradiated by X rays after birth].

Author

Bailly Y, Schoen SW, Delhaye-Bouchaud N, Kreutzberg GW, and Mariani J

Subjects
Animals, Animals, Newborn, Cerebellar Cortex radiation effects, Cranial Irradiation adverse effects, Rats, Rats, Inbred Strains, 5'-Nucleotidase metabolism, Cerebellar Cortex enzymology, Synapses enzymology
Abstract

5'-nucleotidase cytochemistry was performed in the cerebellum of adult rats exposed previously to a single postnatal X-irradiation which maintains until adulthood the normally transient multiple innervation of cerebellar Purkinje cells by climbing fibers. 5'-nucleotidase activity persists in climbing fiber synapses and other asymmetrical synapses while it is transient during normal development. Therefore, in the X-irradiated rat, an immature stage of the excitatory synapses persists which, for the climbing fibers, coïncides with or precedes their involution during normal development.

Published
1990

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