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News for Healthier Living

Enantioselective Maternal Transfer of Pesticide Metabolite and Its Thyroid Effects

Estimating the multigenerational effects of chiral pesticide metabolites is essential for fully understanding their ecological impacts. This study demonstrated that S-o,p'-DDD accumulated preferentially in adult zebrafish and transferred more efficiently to their offspring compared to the R-enantiomer, leading to pronounced developmental defects and endocrine disruption across both generations. Molecular docking against key thyroid-related proteins provided a mechanistic explanation for this stereospecific toxicity. These findings suggest that evaluating only racemic mixtures may underestimate real-world hazards.

November 26, 2025


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