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Related Experiment Videos

Serum demyelinating factors in multiple sclerosis.

F J Seil, F C Westall, J S Romine

    Annals of Neurology
    |June 1, 1983
    PubMed
    Summary
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    Serum from multiple sclerosis patients showed demyelinating activity in spinal cord cultures, independent of treatment status. This activity did not affect new myelin formation in cerebellar cultures.

    Area of Science:

    • Neuroimmunology
    • Demyelinating Diseases
    • Cell Biology

    Background:

    • Multiple sclerosis is a chronic inflammatory disease of the central nervous system characterized by demyelination.
    • The role of humoral factors in multiple sclerosis pathogenesis is an area of ongoing research.

    Purpose of the Study:

    • To investigate the presence and characteristics of demyelinating activity in sera from multiple sclerosis patients.
    • To determine if serum demyelinating activity correlates with disease activity or treatment status.

    Main Methods:

    • Myelinated spinal cord cultures were exposed to sera from multiple sclerosis patients.
    • Demyelinating activity was assessed in tissue culture.
    • Cerebellar cultures were used to evaluate the effect on myelin formation.

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    Main Results:

    • Five out of 31 serum samples from 17 patients exhibited demyelinating activity.
    • Demyelinating activity was observed in sera from patients with active or remitting multiple sclerosis.
    • No correlation was found between demyelinating activity and treatment with myelin basic protein or prednisone.
    • Sera with demyelinating activity did not inhibit the formation of new myelin.

    Conclusions:

    • Serum from some multiple sclerosis patients possesses demyelinating activity.
    • This activity appears independent of current therapeutic interventions and disease state.
    • The findings suggest a potential role for specific serum factors in demyelination, but not in inhibiting remyelination.