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Related Experiment Videos

[Paroxysmal activity test in pediatric neurology]

O I Maslova, O V Globa, E G Sorokina

    Zhurnal Nevrologii I Psikhiatrii Imeni S.S. Korsakova
    |March 20, 1998
    PubMed
    Summary

    Autoantibodies to glutamate receptors (Glu aAB) are elevated in children with epilepsy and epileptic syndromes. Treatment reducing seizures also lowered Glu aAB levels, suggesting a role in brain epileptization.

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    Area of Science:

    • Neuroscience
    • Immunology
    • Pediatrics

    Background:

    • Glutamate receptors play a critical role in the formation of epileptic foci.
    • Autoantibodies against glutamate receptors may be implicated in the pathogenesis of epilepsy.

    Purpose of the Study:

    • To investigate the levels of autoantibodies (Glu aAB) to a 56 kDa fragment of glutamate receptors in children.
    • To assess the correlation between Glu aAB levels and epilepsy, epileptic syndromes, and paroxysmal disorders.

    Main Methods:

    • Utilized the "Paroxysmal activity test" (PAT) diagnostic kit.
    • Examined 140 children (2 months–16 years) with neurological conditions and 32 healthy children.
    • Measured serum levels of autoantibodies to a 56 kDa quisqualate membrane protein fragment of glutamate receptors.

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    Main Results:

    • Significantly elevated Glu aAB levels were observed in children with epilepsy and epileptic syndromes compared to healthy controls.
    • Glu aAB levels decreased in patients undergoing effective anticonvulsant therapy, correlating with seizure relief and normalized EEG.
    • Children with paroxysmal disorders showed higher Glu aAB levels than healthy children but lower than those with epilepsy.

    Conclusions:

    • Elevated Glu aAB levels are associated with epilepsy and epileptic syndromes in children.
    • The study suggests Glu aAB measurement could be a valuable clinical tool for assessing brain epileptization in neurological diseases.
    • Therapeutic interventions leading to seizure control may reduce Glu aAB levels.