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Research Article| Volume 11, ISSUE 5, P445-461, November 1970

Gliogenèse post-natale chez le lapin

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      Résumé

      La morphologie de la glie du lapin de 1 à 56 jours est étudiée dans les hémisphères cérébraux avec les méthodes de coloration nucléocytoplasmiques usuelles et les imprégnations argentiques.
      La différenciation des lignées gliales est précoce: dès le premier jour on peut observer des cellules oligogliales et astrogliales.
      Les formes de transition existent entre ces cellules et la névroglie primordiale à long prolongement périphérique s'insérant sur la limitante externe.
      Cette différenciation gliale précède la gliose de myélinisation qui débute à 7 jours.
      Pendant la myélinisation les méthodes d'imprégnation argentique mettent en évidence des cellules “moussues” très riches en prolongements qui semblent correspondre à une aspect fonctionnel d'oligodendrocyte.

      Abstract

      The morphology of the glia has been studied in the cerebral hemisphere of rabbits, aged from 1 to 56 days, using Nissl staining and silver impregnation techniques.
      The differentiation of glial cells begins early in life; even on the first day of life oligodendroglia and astroglia can be identified.
      Transitional forms exist between the types of primitive neuroglial cells with long processes observed in the external layers of the cortex.
      This differentiation of glia precedes the formation of “myelination glia” which begins at the seventh day.
      During myelination silver impregnation methods show “mossy” cells, rich in processes, which seem to correspond functionally to the oligodendrocyte.
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