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Related Experiment Videos

A micro-method for peripheral leucocyte migration in tuberculin sensitivity.

K Federlin, R N Maini, A S Russell

    Journal of Clinical Pathology
    |September 1, 1971
    PubMed
    Summary
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    British medical journal·2010

    A new test using tuberculin purified protein derivative (PPD) measures cellular hypersensitivity by observing leukocyte migration. This rapid, blood-based assay correlates with the Mantoux test and is useful for monitoring immunity in various patient groups.

    Area of Science:

    • Immunology
    • Cellular Biology

    Background:

    • Cellular hypersensitivity is a key component of the immune response.
    • Monitoring cellular immunity is crucial in clinical settings, especially for infectious diseases like tuberculosis.

    Purpose of the Study:

    • To establish a rapid and reproducible test for cellular hypersensitivity in humans.
    • To correlate the inhibition of leukocyte migration with established diagnostic tests for hypersensitivity.

    Main Methods:

    • Utilizing micro-capillary chambers for tissue culture.
    • Measuring the inhibition of peripheral leukocyte migration in response to tuberculin purified protein derivative (PPD).
    • Correlating results with the Mantoux test.

    Main Results:

    Related Experiment Videos

  • Inhibition of leukocyte migration by PPD consistently correlated with a positive Mantoux test.
  • The test requires a small blood sample (5-15 ml).
  • The assay demonstrated reproducibility.

    • Conclusions:

    • The PPD-induced inhibition of leukocyte migration is a valid and quick indicator of cellular hypersensitivity.
    • This method offers a practical approach for assessing cellular immunity, particularly in children and for longitudinal studies.