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Related Experiment Videos

Multiple sclerosis and childhood infections.

M Alter, Z X Zhang, Z Davanipour

    Neurology
    |October 1, 1986
    PubMed
    Summary

    Early life infections may protect against multiple sclerosis (MS). Conversely, later infections might increase MS risk, suggesting MS is an age-dependent immune response to childhood infection.

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    Area of Science:

    • Epidemiology
    • Immunology
    • Infectious Diseases

    Background:

    • Migration patterns influence multiple sclerosis (MS) risk, particularly when occurring during childhood.
    • Childhood infections are hypothesized to mediate the observed migration effect on MS risk.
    • Understanding the age-specific patterns of infectious diseases is crucial for elucidating MS etiology.

    Purpose of the Study:

    • To examine the age patterns of infectious diseases in regions with differing MS prevalence.
    • To investigate the relationship between early-life infections and subsequent MS risk.
    • To explore the hypothesis that MS is an age-dependent immune response to infection.

    Main Methods:

    • Comparative analysis of infectious disease seroprevalence in children across different geographical regions.

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  • Correlation analysis between infectious disease mortality rates and MS mortality rates.
  • Examination of age-specific immune responses to viral diseases.

    • Main Results:

    • Areas with rare MS showed a higher proportion of children with positive viral disease titers early in life compared to areas with common MS.
    • Mortality rates from various infectious diseases exhibited a negative correlation with MS mortality.
    • Evidence suggests a protective effect of early-life infection against MS development.

    Conclusions:

    • Infection during childhood may confer protection against multiple sclerosis (MS).
    • Infections occurring later in life, after partial immune system maturation, may elevate MS risk.
    • Multiple sclerosis may represent an age-dependent host immune response to early-life infections.