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Related Experiment Videos

Platelets, leucocytes and buffy layer vitamin C after surgery.

S Vallance

    Human Nutrition. Clinical Nutrition
    |January 1, 1986
    PubMed
    Summary

    Postoperative buffy layer vitamin C levels are not depleted but rather an artifact of measurement. Changes in buffy layer vitamin C reflect shifts in the platelet/leucocyte ratio, not actual vitamin C demand.

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    Area of Science:

    • Biochemistry
    • Hematology
    • Surgical Research

    Background:

    • Buffy layer (BL) vitamin C concentration is often measured postoperatively.
    • Previous studies suggested a potential decrease in vitamin C following surgery.

    Purpose of the Study:

    • To investigate the relationship between postoperative changes in buffy layer vitamin C concentration and alterations in leukocyte and platelet counts.
    • To determine if observed changes in BL vitamin C reflect actual demand or a methodological artifact.

    Main Methods:

    • Analysis of buffy layer vitamin C concentration in relation to leukocyte and platelet counts.
    • Calculation of the platelet/leucocyte ratio (PLR) in whole blood and buffy layer preparations.
    • Comparison of BL vitamin C changes with PLR variations after surgical operations.

    Main Results:

    • A significant correlation was observed between the postoperative fall in BL vitamin C concentration and changes in the platelet/leucocyte ratio.
    • The study identified the observed decrease in BL vitamin C as a methodological artifact, not a true depletion of vitamin C.
    • Findings indicate that PLR variations directly influence measured BL vitamin C levels.

    Conclusions:

    • The fall in buffy layer vitamin C concentration after surgery is an artifact of the measurement method.
    • Accurate interpretation of BL vitamin C analysis requires consideration of the platelet/leucocyte ratio.
    • Differential leukocyte counts are recommended for reliable BL vitamin C assessment in clinical settings.

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