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  • Title: Effects of repeated intravenous infusions of the plasticizer di-(2-ethylhexyl) phthalate in young male rats.
    Author: Sjöberg P, Lindquist NG, Montin G, Plöen L.
    Journal: Arch Toxicol; 1985 Dec; 58(2):78-83. PubMed ID: 4091660.
    Abstract:
    The effects of six iv infusions of an emulsion containing the plasticizer di(2-ethylhexyl) phthalate (DEHP) on the liver and testes were investigated in 40-day-old rats. Groups of five to six animals received the emulsion every other day in doses of 0, 5, 50 or 500 mg DEHP/kg body weight. Liver effects were studied by histological examination and by measuring bromosulfophthalein clearance, peroxisomal proliferation and certain enzymes in serum. Testicular effects were evaluated by light and electron microscopy. To investigate the possibility of an age-related effect on the testis, five 25-day-old rats were given six infusions of 500 mg DEHP/kg. Compared with control animals, the high-dose group showed a 36% increase in relative liver weight and a 41% increase in the number of peroxisomes. In Epon-embedded testicular material from animals given the highest dose, which is about 100 times the highest estimated human exposure, some altered Sertoli cells and some degenerated primary spermatocytes were observed. No age-related effect on the testis similar to that found following oral administration of DEHP was observed in this study.
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