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Evaluation of bovine polymorphonuclear leukocyte function

J A Roth, M L Kaeberle

    Veterinary Immunology and Immunopathology
    |April 1, 1981
    PubMed
    Summary
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    This study reports normal values for bovine polymorphonuclear leukocyte (PMN) function tests. These assays aid in detecting and characterizing bovine neutrophil dysfunction for improved cattle health.

    Area of Science:

    • Veterinary Immunology
    • Cellular Immunology
    • Bovine Hematology

    Background:

    • Polymorphonuclear leukocytes (PMNs), or neutrophils, are critical immune cells in cattle.
    • Assessing bovine PMN function is essential for diagnosing and managing immune-related diseases in cattle.
    • Existing methods for evaluating neutrophil function can be time-consuming and require multiple cell preparations.

    Purpose of the Study:

    • To establish reference values for key bovine PMN functions in vitro.
    • To present a panel of five assays that can be performed rapidly on a single cell preparation.
    • To facilitate the detection and initial characterization of bovine PMN dysfunction.

    Main Methods:

    • Isolation of bovine peripheral blood polymorphonuclear leukocytes (PMNs).

    Related Experiment Videos

  • Evaluation of PMN function using five in vitro assays: random migration, Staphylococcus aureus ingestion, nitroblue tetrazolium reduction, chemiluminescence, and iodination.
  • Standardization of procedures for simultaneous execution on the same cell population.

    • Main Results:

    • Establishment of normal reference ranges for the five tested bovine PMN functions.
    • Demonstration that all five functional assays can be completed efficiently from a single blood sample.
    • The combined results provide a baseline for interpreting PMN activity in cattle.

    Conclusions:

    • The described suite of in vitro tests provides a practical method for assessing bovine PMN function.
    • These assays can aid veterinarians in identifying and partially characterizing neutrophil defects in cattle.
    • This approach supports the diagnosis of immune deficiencies and enhances cattle disease management strategies.