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Antagonism between selenium and humic acid.

A Peng, L Q Xu

    Scientia Sinica. Series B, Chemical, Biological, Agricultural, Medical & Earth Sciences
    |January 1, 1987
    PubMed
    Summary
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    Selenium and humic acid (HA) show an antagonistic toxicity, potentially impacting Kaschin Beck disease. Chemical bonding studies reveal interactions between HA and selenium (Se) in solutions, offering insights into disease mechanisms.

    Area of Science:

    • Environmental Science
    • Toxicology
    • Biochemistry

    Background:

    • Kaschin Beck disease is linked to drinking water contaminants in endemic regions.
    • Selenium (Se) and humic acid (HA) are present in these water sources.
    • An antagonistic relationship between Se and HA toxicity has been observed.

    Purpose of the Study:

    • To investigate the antagonistic toxicity between selenium and humic acid.
    • To elucidate the chemical mechanisms underlying this antagonism.
    • To explore the role of Se and HA in the etiology of Kaschin Beck disease.

    Main Methods:

    • Experiments were conducted using mice and luminous bacteria models.
    • Gel filtration chromatography was employed to analyze HA-Se interactions.

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  • X-ray photoelectron spectroscopy (XPS) was used to study chemical bonding in synthetic HA-Se solutions.

    • Main Results:

    • Demonstrated an antagonistic effect between selenium and humic acid toxicity.
    • Identified chemical bonding between selenium and humic acid in solution.
    • Provided insights into the molecular interactions relevant to Kaschin Beck disease.

    Conclusions:

    • The study confirms an antagonism in toxicity between selenium and humic acid.
    • Chemical analysis reveals specific bonding interactions between Se and HA.
    • Findings contribute to understanding the complex environmental factors in Kaschin Beck disease.