[Demonstration of temporary multi-innervation of the cerebellar Purkinje cells by the ascending fibers during development in the rat].
The one-to-one relationship between cerebellar Purkinje cells and climbing fibres in the adult rats is the result of a regressive process affecting a multi-afferent pathway during the early post-natal period, as shown from the innervation by several independent climbing fibres of more than 50% of the Purkinje cells tested electrophysiologically on days 8 and 9.
D000200:Action Potentials; D000367:Age Factors; D000818:Animals; D002531:Cerebellum / Q000254:growth & development* / Q000502:physiology; D004558:Electric Stimulation; D009413:Nerve Fibers, Myelinated; D009420:Nervous System / Q000254:growth & development*; D009434:Neural Pathways / Q000254:growth & development*; D009847:Olivary Nucleus / Q000254:growth & development* / Q000502:physiology; D011689:Purkinje Cells; D051381:Rats; D013569:Synapses / Q000502:physiology
Mise en évidence d'une multi-innervation temporaire des cellules de Purkinje du cervelet par les fibres grimpantes au cours du développement chez le rat