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HLA in asthma

M J Morris, H Vaughan, D J Lane

    Monographs in Allergy
    |January 1, 1977
    PubMed
    Summary
    This summary is machine-generated.

    Human Leukocyte Antigen (HLA) B12 is less common in asthma patients with negative skin tests. HLA-B8 is more frequent in extrinsic asthma, while HLA-B12 is less frequent in intrinsic asthma.

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    Area of Science:

    • Immunogenetics
    • Allergy and Immunology
    • Pulmonology

    Background:

    • Asthma is a complex respiratory condition with diverse clinical presentations.
    • Human Leukocyte Antigen (HLA) genes play a crucial role in immune responses.
    • Previous research suggests associations between specific HLA types and allergic diseases.

    Purpose of the Study:

    • To investigate the association between HLA antigen frequencies and asthma phenotypes.
    • To explore the relationship between HLA types and allergic sensitization in asthma patients.

    Main Methods:

    • Human Leukocyte Antigen (HLA) typing was performed on 100 adult asthma patients.
    • Patients underwent skin prick testing with a panel of common allergens.
    • Patients were categorized into skin test positive (extrinsic asthma) and skin test negative (intrinsic asthma) groups, and compared to controls.

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    Main Results:

    • A decreased frequency of HLA-B12 was observed in skin test negative asthma patients (18%) compared to skin test positive patients (43%) and controls (36%).
    • Extrinsic asthmatics showed an increased frequency of HLA-B8 (37%) compared to normal controls (28%).
    • Intrinsic asthmatics exhibited a decreased frequency of HLA-B12 (13%) compared to controls (36%).

    Conclusions:

    • Specific Human Leukocyte Antigen (HLA) types, particularly HLA-B8 and HLA-B12, are differentially associated with extrinsic and intrinsic asthma phenotypes.
    • These findings suggest a potential immunogenetic basis for different asthma subtypes.
    • Further research into HLA associations may aid in understanding asthma pathogenesis and developing targeted therapies.