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  • Title: Maternal exposure to a mixture of di(2-ethylhexyl) phthalate (DEHP) and polychlorinated biphenyls (PCBs) causes reproductive dysfunction in adult male mouse offspring.
    Author: Fiandanese N, Borromeo V, Berrini A, Fischer B, Schaedlich K, Schmidt JS, Secchi C, Pocar P.
    Journal: Reprod Toxicol; 2016 Oct; 65():123-132. PubMed ID: 27417426.
    Abstract:
    We investigated the effects of maternal exposure to the plasticizer di(2-ethylhexyl) phthalate (DEHP) and the organic industrial compounds polychlorinated biphenyls (PCBs), singly and combined, on the reproductive function of male mouse offspring. Mice dams were exposed throughout pregnancy and lactation to 1μg PCBs (101+118)/kg/day, 50μg DEHP/kg/day, or the DEHP/PCB mixture in the diet. The mixture induced permanent alterations in adult F1 males' reproductive health in a way, differently from the single compounds. Depending on the endpoint, we observed: (1) synergy in altering the gross and histological morphology of the testis; (2) antagonism on the expression levels of genes involved in pituitary-gonadal cross-talk; (3) non-interactions on sperm parameters and testosterone production. This study illustrates the complex action of a DEHP/PCB mixture, leading to a unique panel of effects on the male reproductive system, indicating the need for research on the reproductive hazards of combined endocrine disruptors.
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