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- W2024748102 abstract "A mouse preimplantation embryo culture system was utilized to characterize the in vitro embryotoxicity of petroleum creosote (PC), a complex mixture of aliphatic and polycyclic aromatic hydrocarbons. ICR mouse embryos, collected on d 3.5 of gestation (blastocyst stage), were exposed for 1 h to varying concentrations of petroleum creosote in serum-supplemented culture medium. Parallel embryo cultures were exposed to PC in medium supplemented with rodent hepatic S9 microsomal fractions to monitor the role of bioactivation in PC-induced embryotoxicity. Embryos were subsequently cultured in control medium for 72 h and observed for viability as well as specific, time-dependent developmental end points--hatching and attachment to the culture dish at 48 h, and trophoblastic outgrowth with a distinct inner cell mass at 72 h. Embryonic viability varied in inverse proportion to PC concentration. Petroleum creosote caused embryolethal effects at concentrations of 33 micrograms/ml of culture medium and 54 micrograms/ml. Embryotoxicity was not observed at 22 micrograms/ml. Culture supplementation with rodent hepatic S9 fractions did not modify, either qualitatively or quantitatively, the embryotoxicity of PC in vitro. These findings implicate PC as a prenatal toxicant and support environmental and human health concerns regarding PC exposure from PC-containing chemical waste sites." @default.
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- W2024748102 date "1992-10-01" @default.
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- W2024748102 title "In vitro embryotoxicity of petroleum creosote monitored via mouse preimplantation embryo culture" @default.
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- W2024748102 doi "https://doi.org/10.1080/15287399209531667" @default.
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