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    J Neurocytol. 1975 Dec;4(6):745-57.

    Remyelination by Schwann cells of axons demyelinated by intraspinal injection of 6-aminonicotinamide in the rat.

    Abstract

    Focal areas of primary demyelination were produced in the spinal cords of rats by means of local injections of 6-aminonicotinamide. Both astrocytes and oligodendrocytes underwent degeneration in the demyelinated area. Nearly all the demyelinated axons were remyelinated by Schwann cells; only a very small number of axons located adjacent to normally myelinated axons were remyelinated by oligodendrocytes. The glial limiting membrane was reconstituted around the ecge of the area remyelinated by Schwann cells. This experiment offers further evidence for an important role of astrocytes in controlling Schwann cell invasion of the central nervous system, and in addition suggests that astrocytes are also needed for oligodendrocyte remyelination to take place.

    PMID:
    127832
    [PubMed - indexed for MEDLINE]

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