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Related Experiment Videos

The function of polymorphonuclear leukocytes after surgical trauma.

L Bröte, O Stendahl

    Acta Chirurgica Scandinavica
    |January 1, 1975
    PubMed
    Summary

    Surgical trauma does not impair polymorphonuclear leukocyte (PMN) function, suggesting infections are not due to defective PMN cells. However, burn injuries significantly impair PMN iodination capacity.

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    Immunology·2001

    Area of Science:

    • Immunology
    • Surgical Pathology

    Background:

    • Polymorphonuclear leukocytes (PMNs) are crucial for innate immunity.
    • Surgical trauma can potentially affect immune cell function, impacting infection risk.

    Purpose of the Study:

    • To investigate the impact of surgical trauma on human PMN function.
    • To assess if PMN dysfunction contributes to postoperative infectious complications.

    Main Methods:

    • Measuring hexosemonophosphate shunt (HMS) activity during phagocytosis.
    • Assessing myeloperoxidase-mediated iodination in PMN cells.

    Main Results:

    • Postoperative elective general surgery patients exhibited normal PMN iodination and HMS activity.
    • Burned patients showed significantly impaired PMN iodination (p < 0.05), while traumatic and septic patients had normal function.
    • HMS activity remained normal in burned patients, suggesting impaired iodination may stem from defective lysosomal enzyme mobilization.

    Conclusions:

    • Defective PMN cell function is unlikely to cause or promote postoperative infectious complications after general surgery.
    • Impaired iodination in burn patients suggests a specific defect in PMN response to this type of injury.
    • Further research is needed to understand the mechanisms behind impaired iodination in burn patients.

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