Modulation of the β1–3 voltage-gated sodium channels in rat vestibular and facial nuclei after unilateral labyrinthectomy and facial nerve section: an in situ hybridization study
Abstract We investigated whether the production of the mRNAs for the auxiliary β subunits of the Na channels are modulated in deafferented medial vestibular nucleus (MVN) and in axotomized facial motoneurons. No β1–3 mRNAs modulation was detected at any time following unilateral labyrinthectomy in the deafferented and intact medial vestibular nucleus. In contrast, β1 gene expression in the axotomized facial nucleus decreased compared to controls as soon as day post-lesion 3.