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Screening human populations for chromosome aberrations.

A Norman, D Bass, D Roe

    Mutation Research
    |July 1, 1985
    PubMed
    Summary
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    Micronuclear counts (MNC) effectively identify individuals with high chromosome aberration frequencies. Age significantly influences MNC, but other factors like sex do not, making MNC a reliable biomarker.

    Area of Science:

    • Cytogenetics
    • Biomarker Discovery
    • Human Genetics

    Background:

    • Micronuclear counts (MNC) are investigated as a potential indicator of chromosome damage.
    • Understanding factors influencing MNC is crucial for accurate interpretation in human biomonitoring.

    Purpose of the Study:

    • To evaluate the utility of micronuclear counts (MNC) for identifying individuals with elevated chromosome aberration frequencies.
    • To identify key factors that influence MNC in adult blood samples.

    Main Methods:

    • Analysis of blood samples from 28 adults to assess factors affecting MNC.
    • Logistic regression analysis to determine the predictive power of MNC for chromosome aberrations.

    Main Results:

    • The presence of cells with chromosome aberrations was the primary factor influencing MNC.

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  • Age was found to significantly affect MNC, while donor sex and mitotic index did not.
  • MNC proved to be an excellent predictor of chromosome aberrations in both learning and test datasets.

    • Conclusions:

    • Micronuclear counts (MNC) are a valuable tool for detecting individuals with a higher likelihood of chromosome aberrations.
    • Age is a significant covariate when assessing MNC for chromosome damage.
    • MNC serves as a reliable biomarker for chromosomal instability in human populations.