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© 1987 Oxford University Press

research-article

The Developmental Toxicity of Bisphenol A in Rats and Mice1

RICHARD E. MORRISSEY, JULIA D. GEORGE*, CATHERINE J. PRICE*,2, ROCHELLE W. TYL*,2, MELISSA C. MARR* and CAROLE A. KIMMEL{dagger},3

National Institute of Environmental Health Sciences, National Toxicology Program P.O. Box 12233, Research Triangle Park, North Carolina 27709 *Chemistry and Life Sciences, Center for Life Sciences and Toxicology, Research Triangle Institute P.O. Box 12194, Research Triangle Park, North Carolina 27709 {dagger}Perinatal and Postnatal Evaluation Branch, Division of Teratogenesis Research, National Center for Toxicological Research/National Toxicology Program Jefferson, Arkansas 72079

The Developmental Toxicity of Bisphenol A in Rats and Mice. MORRISSEY, R. E., GEORGE, J. D., PRICE, C. J., TYL, R. W., MARR, M. C., AND KIMMEL, C. A. (1987). Fundam. Appl. Toxicol. 8, 571–582. Bisphenol A (BPA) was evaluated for developmental toxicity in CD rats (0, 160, 320, or 640 mg/kg/day) and CD-1 mice (0, 500, 750, 1000, or 1250 mg/kg/day) dosed daily by gastric intubation on Gestational Days 6 through 15. Timed-pregnant dams were sacrificed 1 day prior to parturition, the uterine contents were examined, and all fetuses were examined for external, visceral, and skeletal malformations. In rats, maternal weight gain during gestation, weight gain corrected for gravid uterine weight, and weight gain during treatment were significantly reduced at all BPA doses. Gravid uterine weight and average fetal body weight per litter were not affected by BPA. No increase in percentage resorptions per litter or percentage fetuses malformed per litter was detected. In mice, maternal mortality occurred at all BPA doses, reaching 18% at the high dose, which also produced a significant decrease in maternal body weight gain during gestation and treatment. Weight gain corrected for gravid uterine weight was not affected by BPA. Reductions in gravid uterine weight and average fetal body weight were observed with the 1250 mg/kg dose of BPA. Relative maternal liver weight was increased at all doses of BPA. There was a significant increase in the percentage of resorptions per litter with 1250 mg BPA/kg/day. Malformation incidence was not altered by BPA. Thus, BPA treatment at maternally toxic dose levels during organogenesis produced fetal toxicity in mice but not in rats and did not alter fetal morphologic development in either species.


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