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Related Experiment Videos

[Anti-HAV-specific immunoglobulins].

M Maniez-Montreuil, M V Dupressoir-Burlet, M Goudemand

    Revue Francaise De Transfusion Et Immuno-Hematologie
    |November 1, 1983
    PubMed
    Summary

    Pre-selecting plasma donors with high anti-HAV antibody titers is crucial for producing effective Hepatitis A immune serum globulin (ISG). This targeted approach ensures a potent ISG, unlike methods using unselected donors or older individuals.

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    [Addiction and brief-systemic therapy: working with compulsion].

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    Area of Science:

    • Immunology
    • Virology
    • Public Health

    Context:

    • Declining anti-HAV antibody prevalence in European adults due to improved socio-economics increases susceptibility to Hepatitis A virus (HAV) infection.
    • This trend reduces the anti-HAV antibody content in plasma used for immune serum globulin (ISG) preparation.

    Purpose:

    • To investigate methods for preparing ISG with satisfactory anti-HAV antibody content.
    • To evaluate donor preselection strategies for optimizing ISG potency against HAV.

    Summary:

    • Initial attempts to preselect donors over 40 years old did not improve ISG anti-HAV antibody titers (200 IU/ml).
    • Subsequent selection of plasmas with high anti-HAV titers (C10 > 87%) identified 16% of donors suitable for hyper-immune serum globulin (HISG) preparation.
    • This method yielded HISG with significantly higher anti-HAV levels (800 IU/ml).

    Impact:

    • Enables the production of hyperimmune globulin with standardized, known potency against HAV.
    • Suggests future prescriptions should specify anti-HAV antibody levels rather than just ISG volume.

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