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These studies evaluated the effects of inhaled vinyl chloride monomer (VCM) on mouse, rat and rabbit embryonal and fetal development. Groups of pregnant CF-1 mice, Sprague-Dawley rats and New Zealand white rabbits were exposed to 500 ppm VCM for 7 hr daily during the period of major organogenesis. Subsequently, other groups of mice were similarly exposed to(More)
The embryotoxic and teratogenic potential of inhaled monochlorobenzene (MCB) was evaluated in rats and rabbits. Bred Fischer 344 rats and inseminated New Zealand White rabbits were exposed to 0, 75, 210, or 590 ppm of MCB via inhalation for 6 hr/day during the period of major organogenesis. Exposure to 590 ppm caused elevated liver weights in both species(More)
The effect of inhaled benzene on embryonal and fetal development was assessed in mice and rabbits. CF-1 mice and New Zealand white rabbits were exposed to 0 or 500 ppm of benzene for 7 hr per day from days 6 through 15 (mice) and 6 through 18 (rabbits) of gestation. Little evidence of maternal toxicity was seen in either species. Although some signs of(More)
Orthophenylphenol (OPP), an antimicrobial used as a chemical disinfectant and for post-harvest preservation of fruits and vegetables, was evaluated for embryotoxic and teratogenic potential in rats. Pregnant Sprague-Dawley rats were administered 0, 100, 300, or 700 mg/kg/day of OPP by gavage on gestation days 6 through 15. Evidence of maternal toxicity was(More)
The teratogenicity of tetrachloroacetone (TCA) was evaluated in CF-1 mice and New Zealand white rabbits. Mice were given 0, 5, 15 or 50 mg/kg/day of TCA by gavage on days 6 through 15 of gestation. Rabbits were given 0, 1, 5, or 10 mg/kg/day on days 6 through 18 of gestation. The incidence of malformed fetuses was not significantly increased among mice(More)