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Related Experiment Videos

Corticosteroid effects on circulating lymphocyte subset levels in normal humans.

B Zweiman, P C Atkins, P M Bedard

    Journal of Clinical Immunology
    |March 1, 1984
    PubMed
    Summary

    Corticosteroids impact lymphocyte levels. Intravenous methylprednisolone, unlike oral doses, significantly reduced T4 cells and T3 cells in healthy volunteers, indicating specific immune cell alterations.

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    Area of Science:

    • Immunology
    • Pharmacology

    Background:

    • Corticosteroid effects on human lymphocyte subsets need clarification.
    • Understanding these effects is crucial for clinical applications.

    Purpose of the Study:

    • To investigate the impact of oral and intravenous methylprednisolone on lymphocyte subsets in healthy individuals.
    • To compare the effects of different administration routes and durations.

    Main Methods:

    • A double-blind, placebo-controlled study involving 10 healthy volunteers.
    • Administration of oral methylprednisolone (0.5 mg/kg/day for 7 days) and a single intravenous dose (1.0 mg/kg).
    • Analysis of lymphocyte subsets using monoclonal antibodies.

    Main Results:

    • Oral methylprednisolone led to mild lymphopenia without significant subset changes.

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  • Intravenous methylprednisolone caused pronounced lymphopenia (P<0.01).
  • Intravenous administration selectively decreased T4 cells (P<0.001) and modestly decreased T3 cells.

    • Conclusions:

    • Intravenous methylprednisolone has a more significant impact on lymphocyte subsets than oral administration.
    • The selective reduction in T4 cells warrants further investigation into mechanisms and clinical implications.