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Cryoproteins.

J R Hobbs

    Annales De Medecine Interne
    |January 1, 1986
    PubMed
    Summary
    This summary is machine-generated.

    This review details cold-precipitating proteins (cryoglobulins), focusing on laboratory-producible aggregates. Understanding these proteins is crucial for diagnosing and managing associated immune complex diseases and neoplasms.

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    Area of Science:

    • Immunology
    • Hematology
    • Pathology

    Background:

    • Cold-precipitating proteins, or cryoglobulins, can cause various clinical manifestations.
    • Laboratory analysis of these proteins is key to understanding their pathological roles.

    Purpose of the Study:

    • To review proteins that exhibit cold-induced phenomena, with a focus on laboratory-producible aggregates.
    • To outline the frequencies and clinical associations of different cryoprotein types.

    Main Methods:

    • Review of three large patient series.
    • Analysis of protein aggregation phenomena upon cold exposure.
    • Correlation of cryoprotein types with clinical presentations and underlying conditions.

    Main Results:

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    • Mixed cryoglobulins (polyclonal 50%, monoclonal 18%) are associated with immune complex disease and poor prognosis with renal involvement.
    • Monoclonal cryoglobulins (25%) often indicate B-cell neoplasms.
    • Cryofibrinogen (3%) links to thrombophlebitis migrans and cancer.
    • Cold agglutinins (polyclonal 2%, monoclonal 2%) cause Raynaud's phenomenon and hemolytic anemia.

    Conclusions:

    • Cryoprotein identification is vital for diagnosing immune complex diseases, B-cell neoplasms, and thrombotic disorders.
    • Early diagnosis and management of cryoglobulinemia can improve patient outcomes.
    • Treatment strategies offer encouraging results in approximately one-third of patients.