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Related Experiment Videos

H-rosette formation in T-cell-proliferative diseases.

P J Sheldon, E J Holborow

    British Medical Journal
    |November 15, 1975
    PubMed
    Summary

    In healthy individuals, up to 6% of lymphocytes form H rosettes. Increased H rosettes indicate T-cell proliferative diseases, suggesting a role for this test in diagnosing blood lymphocyte changes.

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    Biochemistry·1999

    Area of Science:

    • Immunology
    • Hematology
    • Clinical Pathology

    Background:

    • Lymphocytes play a crucial role in the immune system.
    • Specific lymphocyte subpopulations can be identified through various assays.
    • H-rosette formation is a known phenomenon involving lymphocytes and erythrocytes.

    Purpose of the Study:

    • To investigate the significance of H-rosette formation in human lymphocytes.
    • To determine if H-rosette levels correlate with specific T-cell proliferative diseases.
    • To evaluate the potential clinical utility of H-rosette testing.

    Main Methods:

    • Quantification of H-rosette formation in healthy human lymphocytes.
    • Comparison of H-rosette levels in patients with T-cell proliferative diseases versus healthy controls.
    • Analysis of H-rosette formation as a marker for T-cell activation.

    Main Results:

    • In healthy individuals, up to 6% of lymphocytes form H rosettes with homologous group O rhesus-negative erythrocytes.
    • Significantly increased numbers of H rosettes were observed in patients with infectious mononucleosis, Sézary's syndrome, and T-cell leukaemia.
    • H-rosette formation appears to be a marker for a specific subpopulation of T lymphocytes.

    Conclusions:

    • H-rosette formation is a quantifiable indicator of a T-lymphocyte subpopulation.
    • Elevated H-rosette levels are associated with T-cell proliferative diseases.
    • This easily performed test may hold clinical value for characterizing blood lymphocyte changes in disease states.

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