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Related Experiment Videos

Immunological studies in frozen shoulder.

D Bulgen, B Hazleman, M Ward

    Annals of the Rheumatic Diseases
    |April 1, 1978
    PubMed
    Summary
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    Patients with frozen shoulder exhibit significantly reduced serum immunoglobulin A (IgA) levels, indicating a potential immune system link. These immune changes persist even after clinical recovery, suggesting an underlying immunological pathogenesis.

    Area of Science:

    • Immunology
    • Rheumatology
    • Clinical Medicine

    Background:

    • Frozen shoulder (adhesive capsulitis) is a common condition characterized by shoulder pain and stiffness.
    • The exact pathogenesis of frozen shoulder remains incompletely understood, with immunological factors being investigated.

    Purpose of the Study:

    • To investigate serum immunoglobulin levels and lymphocyte function in patients with frozen shoulder.
    • To explore the potential role of immunological dysregulation in the pathogenesis of frozen shoulder.

    Main Methods:

    • Serum immunoglobulin A (IgA) levels were measured in 25 patients with frozen shoulder and 25 matched controls.
    • Lymphocyte transformation response to phytohaemagglutinin was assessed in 21 patients.

    Main Results:

    Related Experiment Videos

    • Significantly lower serum IgA levels were observed in frozen shoulder patients compared to controls (P < 0.001).
    • Reduced IgA levels persisted after clinical recovery.
    • Lymphocyte transformation was significantly depressed in patients (P < 0.01).

    Conclusions:

    • The findings support an immunological basis for frozen shoulder.
    • Altered immunoglobulin levels and lymphocyte function may contribute to the development or chronicity of frozen shoulder.