title: Three-generation reproduction and dominant lethal mutagenesis studies of ethylene glycol in the rat.
abstract: To assess the possible effects of ethylene glycol (EG) on reproductive performance and mutagenesis, three-generation reproduction and dominant lethal mutagenesis studies were performed in the Fischer 344 rat. EG was included in the diet at approximate dosages of 1.0, 0.2, and 0.04 g/kg/day during three generations of reproduction. Each generation was bred once. In a dominant lethal mutagenesis study, the F2 males from the reproduction study were bred to three consecutive lots of untreated females at weekly intervals. Concomitantly, another group of untreated F2 males that received a single ip injection of 0.50 mg/kg triethylenemelamine (TEM) were bred similarly to serve as a positive control group. No evidence of reduced fertility or increased fetal death was observed in any of the groups receiving EG. Dominant lethal effects in the TEM group confirmed the susceptibility of the rats to a known mutagen. In conclusion, there were no reproductive or dominant lethal effects associated with the inclusion of as much as 1.0 g/kg/day of EG in the diet.
mesh_terms: D000818:Animals; D000831:Animals, Newborn; D001835:Body Weight / Q000187:drug effects; D019855:Ethylene Glycol; D005026:Ethylene Glycols / Q000633:toxicity*; D005260:Female; D005298:Fertility / Q000187:drug effects; D005799:Genes, Dominant; D005804:Genes, Lethal; D008297:Male; D009153:Mutagens; D009154:Mutation; D011247:Pregnancy; D051381:Rats; D011916:Rats, Inbred F344; D012098:Reproduction / Q000187:drug effects*
chemical_list: D005026:Ethylene Glycols; D009153:Mutagens; D019855:Ethylene Glycol