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Related Experiment Videos

Cerebrospinal fluid alterations in herpes simplex virus encephalitis.

M Koskiniemi, A Vaheri, E Taskinen

    Reviews of Infectious Diseases
    |September 1, 1984
    PubMed
    Summary

    Herpes simplex virus (HSV) encephalitis causes lasting changes in cerebrospinal fluid (CSF) with increased proteins and antibodies. Diagnosis requires HSV detection, as CSF alterations suggest a chronic condition.

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    Area of Science:

    • Neurology
    • Virology
    • Immunology

    Background:

    • Herpes simplex virus (HSV) encephalitis is a severe neurological condition.
    • Cerebrospinal fluid (CSF) analysis is crucial for diagnosing central nervous system infections.

    Purpose of the Study:

    • To summarize cellular and humoral alterations in CSF during HSV encephalitis.
    • To highlight diagnostic challenges and disease chronicity indicators in CSF.

    Main Methods:

    • Review of existing literature on CSF findings in HSV encephalitis.
    • Analysis of cellular counts (pleocytosis) and protein/antibody levels (IgG, IgM, IgA) in CSF.
    • Evaluation of HSV-specific antibody production and blood-brain barrier integrity.

    Main Results:

    • CSF may appear normal initially; lymphoid pleocytosis is common and persistent.
    • Elevated protein and immunoglobulin levels (IgG, IgM, IgA) are observed early.
    • Increased local IgG production and abnormal serum-to-CSF antibody ratios indicate ongoing CNS immune response.
    • Conclusive diagnosis relies on HSV isolation or antigen detection from brain biopsy.

    Conclusions:

    • Persistent CSF alterations suggest HSV encephalitis is a chronic disease.
    • CSF analysis provides valuable insights into the immune response in the central nervous system.
    • Early diagnosis and definitive confirmation remain critical for patient management.

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