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Related Experiment Videos

[Selenium and its role in nutrition].

L F Shchelkunov, M S Dudkin, N A Golubkina

    Gigiena I Sanitariia
    |October 13, 2000
    PubMed
    Summary
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    Comparative evaluation of selenium accumulation by allium species after foliar application of selenium nanoparticles, sodium selenite and sodium selenate.

    Doklady biological sciences : proceedings of the Academy of Sciences of the USSR, Biological sciences sections·2012

    Selenium deficiency poses a risk to pregnant women and children. Dietary fiber and selenium compounds can help prevent deficiency, with selenium also linked to sexual hormones.

    Area of Science:

    • Nutritional Science
    • Environmental Health
    • Endocrinology

    Background:

    • Selenium deficiency is a growing global health concern.
    • Specific populations, including pregnant women and children aged 7-10, are at higher risk.
    • Environmental factors, such as radiation exposure, can negatively impact selenium levels.

    Purpose of the Study:

    • To review existing literature on the prevalence and risk factors of selenium deficiency.
    • To explore the relationship between selenium levels and sexual hormones.
    • To identify potential dietary strategies for preventing selenium deficiency.

    Main Methods:

    • Literature review of epidemiological surveys and scientific studies.
    • Analysis of data on selenium levels in various body tissues and hair samples.

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  • Examination of the role of dietary factors in selenium bioavailability.

    • Main Results:

    • Epidemiological data indicate a significant risk of selenium deficiency in pregnant females and children (7-10 years).
    • Radiation exposure, exemplified by Chernobyl workers, was shown to negatively affect serum selenium levels.
    • Higher selenium concentrations were observed in pubic hair, beard, celiac plexus, and axillary hair compared to head hair, suggesting a link with sexual hormones.
    • Dietary fiber concentrates from plant materials, containing structural carbohydrates and lignin, show promise for combined use with selenium compounds.

    Conclusions:

    • Selenium deficiency is a notable public health issue, particularly affecting vulnerable groups.
    • Environmental radiation poses a risk to selenium status.
    • A correlation between selenium and sexual hormones is supported by tissue-specific selenium level differences.
    • Dietary interventions incorporating plant-derived fiber concentrates alongside selenium compounds offer a viable strategy for preventing selenium deficiency.