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Spermotoxicity and tissue accumulation of chlordecone (Kepone) in male rats

R E Linder, T M Scotti, W K McElroy

    Journal of Toxicology and Environmental Health
    |August 1, 1983
    PubMed

    Insights

    High dietary chlordecone levels in male rats caused reversible reductions in sperm motility and viability. Reproductive performance and organ histology remained unaffected by this environmental contaminant.

    Area of Science:

    • Toxicology
    • Environmental Health
    • Reproductive Science

    Background:

    • Chlordecone is an organochlorine pesticide with known toxic effects.
    • Understanding its impact on male reproductive health is crucial for risk assessment.

    Purpose of the Study:

    • To investigate the effects of dietary chlordecone exposure on male rat reproductive parameters.
    • To assess chlordecone accumulation in tissues and its correlation with observed effects.

    Main Methods:

    • Adult male rats were fed diets with varying chlordecone concentrations (0, 5, 15, 30 ppm) for 90 days.
    • Reproductive performance was evaluated through breeding trials.
    • Sperm analysis included motility, viability, morphology, and sperm reserves.
    • Chlordecone residues were quantified in liver, fat, and serum.

    Main Results:

    • No significant impact on overall reproductive performance or male sex organ histology was observed.
    • Dietary chlordecone at 15 and 30 ppm led to reversible decreases in epididymal sperm motility and viability.
    • Sperm reserves in the cauda epididymidis were reduced at higher chlordecone doses.
    • Chlordecone tissue accumulation showed a linear relationship with dietary levels, with the liver accumulating the highest concentrations.

    Conclusions:

    • Chlordecone exposure can impair sperm quality in male rats, although effects appear reversible.
    • Tissue chlordecone levels correlate with dietary intake, highlighting bioaccumulation potential.
    • Further research is needed to fully elucidate the long-term reproductive consequences of chlordecone exposure.

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