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Polymorphonuclear leukocyte dysfunction in children with recurrent otitis media

G S Giebink, E L Mills, J S Huff

    The Journal of Pediatrics
    |January 1, 1979
    PubMed
    Summary
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    Neutrophil immune function can be impaired, with significant percentages of patients showing reduced polymorphonuclear neutrophil (PMN) chemotaxis, bactericidal activity, and chemiluminescence. These findings highlight potential immune deficiencies in patient populations.

    Area of Science:

    • Immunology
    • Cellular Biology

    Background:

    • Polymorphonuclear neutrophils (PMNs) are critical immune cells.
    • Assessing PMN function is vital for understanding host defense.
    • Previous studies suggest variability in PMN functional capacity.

    Purpose of the Study:

    • To quantify the prevalence of impaired polymorphonuclear neutrophil (PMN) functions.
    • To investigate depressed PMN chemotactic responsiveness, bactericidal activity, and chemiluminescence.
    • To assess the clinical significance of these immune cell dysfunctions.

    Main Methods:

    • Patient cohorts were studied to assess PMN function.
    • Chemotactic responsiveness was measured in 97 patients.
    • Bactericidal activity was assessed in 30 patients.

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  • Chemiluminescence activity was evaluated in 19 patients.

    • Main Results:

    • Depressed PMN chemotactic responsiveness was observed in 17.5% of patients.
    • Impaired PMN bactericidal activity was found in 23.3% of patients.
    • Reduced PMN chemiluminescence activity was noted in 15.8% of patients.

    Conclusions:

    • A notable percentage of patients exhibit deficiencies in key PMN functions.
    • These functional deficits in neutrophils may impact patient immunity.
    • Further research is warranted to explore the clinical implications of these findings.