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2003-02-20 - Article/Dans un journal avec peer-review - Anglais - 4 page(s)

Genlain Marlène , Nonclercq Denis , Laurent Guy , Toubeau Gerard, Godaux E., Ris Laurence , "Properties of neurons from the rat medial vestibular nucleus in microexplant culture" in Neuroscience Letters, 338, 1, 45-48

  • Edition : Elsevier, Limerick (Ireland)
  • Codes CREF : Enseignement des sciences bio-médicales et agricoles (DI0133)
  • Unités de recherche UMONS : Histologie (M118)
  • Instituts UMONS : Institut des Sciences et Technologies de la Santé (Santé)
Texte intégral :

Abstract(s) :

(Anglais) This study is a first step in an attempt to identify the factors which determine and maintain the electrophysiological phenotype(s) of mature neurons of the medial vestibular nucleus (MVN). We cultured MVN microexplants obtained from slices of the brainstem of newborn rats, using a hollow punching needle. The electrophysiological maturation of the neurons was followed by analyzing their responses to 1 s steps of current of increasing amplitude. The maximal number of spikes that was generated in response to such stimuli increased dramatically over time in vitro. However, even after 28 days in vitro, it did not exceed about 60 spikes/s. At this stage of culture, the input-output properties of the spike generator of the MVN neurons were similar to those observed in brainstem slices of newborn rats, but clearly inferior to those of adult neurons which can generate sustained firing up to 150-200 spikes/s


Mots-clés :
  • (Anglais) MVN