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Related Experiment Videos

A method for measuring polymorphonuclear leukocyte concentrations in nasal mucus.

B Farr, S F Hackett, B Winther

    Acta Oto-Laryngologica. Supplementum
    |January 1, 1984
    PubMed
    Summary

    This study presents a new method for counting polymorphonuclear leukocytes (PMNs) in nasal mucus. The technique may help researchers study nasal inflammation by measuring PMN concentrations.

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    Area of Science:

    • Immunology
    • Cell Biology
    • Rhinology

    Background:

    • Polymorphonuclear leukocytes (PMNs) are key immune cells involved in inflammation.
    • Accurate measurement of PMNs in nasal mucus is crucial for understanding upper respiratory tract conditions.
    • Existing methods for nasal mucus analysis may have limitations in cell quantification.

    Purpose of the Study:

    • To develop and validate a reliable method for quantifying PMN concentrations in expelled nasal mucus.
    • To establish baseline PMN levels in healthy individuals.
    • To assess the feasibility of using this method for studying nasal inflammatory diseases.

    Main Methods:

    • Nasal mucus samples (0.05-0.15 ml) were collected and diluted 1:60 in Hank's balanced salt solution.
    • Diluted samples underwent vigorous agitation to ensure cell dispersion.

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  • Cells were counted using a hemocytometer to determine PMN concentration.

    • Main Results:

    • The mean PMN concentration in healthy young adults was determined to be 7.1 x 10^6 PMNs/ml of mucus.
    • Significant daily variations in PMN counts were observed within the same individuals.
    • The developed method demonstrated consistent cell counting within sample replicates.

    Conclusions:

    • A straightforward method for measuring PMN concentrations in nasal mucus has been established.
    • The findings highlight the dynamic nature of PMN levels in the nasal cavity.
    • This technique offers a valuable tool for investigating inflammatory conditions affecting the nose.