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Related Experiment Videos

Carcinogenesis with the insecticide rotenone.

M Gosálvez

    Life Sciences
    |February 21, 1983
    PubMed
    Summary

    Rotenone, a widely used insecticide, is suggested to be carcinogenic in rats, especially with riboflavin-deficient diets. Further research is needed to confirm its role as an environmental carcinogen.

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    Area of Science:

    • Environmental Toxicology
    • Carcinogenesis Research

    Background:

    • Rotenone is a long-established insecticide used in agriculture, gardening, and aquatic applications.
    • Widespread use increases potential human exposure through diet and drinking water.

    Purpose of the Study:

    • To review existing data on rotenone's potential to cause neoplastic, paraneoplastic, and preneoplastic lesions in rats.
    • To assess rotenone's carcinogenicity and identify factors influencing its effects.

    Main Methods:

    • Review of published reports and unpublished official documents on rotenone toxicity in rats.
    • Analysis of dose-response patterns and the impact of dietary deficiencies, particularly riboflavin.

    Main Results:

    • Rotenone is strongly suggested to be carcinogenic in rats at doses of 2-25 ppm in food or 0.8-2.5 mg/kg body weight orally for 1-4 months.
    • Carcinogenic effects were exacerbated in rats fed diets deficient in riboflavin.
    • A peculiar dose-response pattern was observed, potentially linked to hormonal mechanisms.

    Conclusions:

    • Rotenone exhibits carcinogenic potential in rats, particularly under conditions of dietary deficiency.
    • Further investigation is necessary to definitively establish rotenone's role as an environmental carcinogen.

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