Metabolism of diethylstilbestrol by rat liver: a preliminary report.

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Engel LL, Weidenfield J, Merriam GR

Metabolism of diethylstilbestrol by rat liver: a preliminary report.

J Toxicol Environ Health Suppl. 1976;1:37-44.

PubMed ID

11352 [ View in PubMed

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Abstract

Aerobic incubation of a misture of E[1,1,1-D3]-3,4;bis(p-hydroxyphenyl)-hex-3-ene admixed with an approximately equimolar amount of unlabeled diethylstilbestrol and [ 2-(14)C ] diethylstilbestrol with rat liver homogenates in the presence of NADPH yielded water-soluble metabolites as well as products more and less polar than the starting material. Addition of 5-adenosyl-L-methionine increased the quantity of nonpolar metabolites. Incubation with rat liver microsomes yielded similar results. When polar metabolites from incubation with rat liver microsomes were incubated with catechol O-methyltransferase and S-adenosyl[methyl-3 H]-L-methionine there was conversion to 3H-labeled nonpolar products. Examination of reaction products by means of gas chronatography-mass spectrometry gave evidence for the formation of a dihydroxydiethylstilbestrol, a dihydroxydienestrol, and a monomethoxydiethylstilbestrol.

DrugBank Data that Cites this Article

Drug Enzymes

Drug	Enzyme	Kind	Organism	Pharmacological Action	Actions
Diethylstilbestrol	Catechol O-methyltransferase	Protein	Humans	Unknown	Substrate	Details