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Chlordecone-induced hepatic dysfunction.

H M Mehendale

    Journal of Toxicology and Environmental Health
    |November 1, 1981
    PubMed
    Summary

    Chlordecone (Kepone) insecticide accumulates in the liver, causing damage and potentially cancer. It also dangerously amplifies the toxicity of other chemicals, even at low doses.

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    Area of Science:

    • Environmental Toxicology
    • Hepatotoxicity
    • Carcinogenesis

    Background:

    • Chlordecone (Kepone) is an insecticide structurally similar to mirex.
    • Unlike mirex, chlordecone exhibits distinct organ-specific toxicity, primarily targeting the liver.

    Purpose of the Study:

    • To investigate the toxicological effects of chlordecone on the liver.
    • To examine the biochemical and pathological alterations induced by chlordecone exposure.
    • To assess the synergistic toxicity of chlordecone with other chemicals.

    Main Methods:

    • Histopathological examination of liver tissues.
    • Biochemical analysis of liver function and enzyme activity.
    • Assessment of mixed-function oxidases (MFOs) induction.
    • Evaluation of energy metabolism in hepatocytes.
    • Toxicological interaction studies with haloalkanes.

    Main Results:

    • Chlordecone accumulates in the liver, leading to morphological changes like enlargement, necrosis, and mitochondrial alterations.
    • Hepatocellular energy production and utilization are impaired; MFOs are induced.
    • Chronic exposure results in liver cancer in rodents.
    • Chlordecone potentiates haloalkane hepatotoxicity, indicating significant toxic interactions.

    Conclusions:

    • Chlordecone is a potent hepatotoxin and carcinogen.
    • Its ability to potentiate other chemical toxicities at low doses is a significant public health concern.
    • Understanding these interactions is crucial for assessing risks associated with combined chemical exposures.

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