Abstract Title:

Developmental effects associated with exposure to xylene: a review.

Abstract Source:

Drug Chem Toxicol. 1985;8(4):281-97. PMID: 3908073

Abstract Author(s):

R D Hood, M S Ottley


Data obtained from rodents indicates that maternal exposure to mixed xylenes or individual xylene isomers can have adverse effects on the conceptus. Fetotoxic effects were reported following maternal inhalation exposure to mixed xylenes; altered enzyme activities were also found in rat pups. Dermal application resulted in apparent changes in fetal enzyme activities, while oral treatment was followed by prenatal mortality, growth inhibition, and malformations, primarily cleft palate. Maternal inhalation of individual isomers was associated with all of the above mentioned effects, with the exception of cleft palate. The o- and p-isomers appeared more hazardous to offspring than did the m-isomer. Malformations (i.e., cleft palate) associated with mixed or individual isomers were primarily reported at maternally toxic doses. Thus, a clear case for a selective teratogenic effect due to exposure to xylene has yet to be presented.

Study Type : Animal Study

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