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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Genotoxicity, metabolism and blood kinetics of epichlorohydrin in mice.

Epichlorohydrin (ECH), a direct mutagen in vitro, did not induce chromosomal aberrations in bone-marrow cells of CD1 mice given single oral doses of 50 and 200 mg/kg in water. The ECH diol derivative (3-chloro-1,2-propanediol) was tested in vitro by a forward-mutation assay on the yeast Schizosaccharomyces pombe and showed a weak but significant mutagenic effect. The failure of ECH to induce mutagenic effects appears to be due to the rapid metabolic clearance of the compound in vivo. ECH blood kinetics at both doses, and at the same time the concentration of the diol, were determined. ECH rapidly disappeared from mouse blood, being no longer detectable 20 min after treatment. In contrast, 3-chloro-1,2-propanediol was measurable up to 5 h after dosage. No difference was observed in the kinetic and metabolic behavior of ECH after single and repeated doses (50 and 200 mg/kg/day for 7 days). When 3-chloro-1,2-propanediol was tested, neither glutathione depletion nor epoxide hydrolase inhibition (evaluated with both styrene-7,8-oxide and ECH as substrates) could be detected in mouse liver. Finally, no difference in ECH blood kinetics or metabolism were observed in experiments in which the compound was administered (200 mg/kg) intraperitoneally in water or orally as a solution in dimethyl sulfoxide.[1]


  1. Genotoxicity, metabolism and blood kinetics of epichlorohydrin in mice. Rossi, A.M., Migliore, L., Lascialfari, D., Sbrana, I., Loprieno, N., Tortoreto, M., Bidoli, F., Pantarotto, C. Mutat. Res. (1983) [Pubmed]
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