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Related Experiment Videos

IgE in the cerebrospinal fluid.

C J Sindic, C G Magnusson, E C Laterre

    Journal of Neuroimmunology
    |August 1, 1984
    PubMed
    Summary
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    Immunoglobulin E (IgE) was rarely found in cerebrospinal fluid (CSF) of healthy individuals or those with sciatica. Elevated IgE in CSF may indicate local production in tuberculous meningitis, suggesting a role for IgE in certain neurological infections.

    Area of Science:

    • Neurology
    • Immunology
    • Clinical Chemistry

    Background:

    • Immunoglobulin E (IgE) is typically associated with allergic reactions.
    • Its presence and role in the central nervous system (CNS) are less understood.
    • Investigating IgE in cerebrospinal fluid (CSF) can offer insights into CNS pathologies.

    Purpose of the Study:

    • To determine the presence and origin of IgE in CSF.
    • To explore the potential diagnostic value of CSF IgE in neurological disorders.
    • To differentiate between systemic and local IgE production in the CNS.

    Main Methods:

    • Particle counting immunoassay used to quantify IgE levels in CSF and serum.
    • Calculation of the IgE index (CSF IgE/serum IgE ratio adjusted for albumin).

    Related Experiment Videos

  • Comparison of IgE indices with IgG and IgA indices in patient cohorts.

    • Main Results:

    • IgE was not detected in CSF of non-neurological patients or those with sciatica.
    • IgE was detected in some patients with multiple sclerosis and CNS infections.
    • An elevated IgE index, suggesting local production, was observed in most tuberculous meningitis cases.
    • No specific IgE antibodies against purified protein derivatives were found in tuberculous meningitis patients.

    Conclusions:

    • Systemic IgE is generally excluded from the CSF.
    • Elevated CSF IgE may indicate local production, particularly in tuberculous meningitis.
    • Further research is needed to elucidate the specific role and targets of locally produced IgE in CNS infections.