Gervasi PG, Citti L, Testai E, Turchi G. Metabolism of vinylcyclooctane and partition ratio between epoxide formation and cytochrome P-450 destruction.
Toxicol Lett 1984;
20:243-9. [PMID:
6701911 DOI:
10.1016/0378-4274(84)90155-3]
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Abstract
Vinylcyclooctane (VCO), which binds to the active site of cytochrome P-450 (P-450) giving a type I difference spectrum, has been found to form the corresponding epoxide as the main metabolite on treatment with liver microsomal monooxygenase obtained from phenobarbital-treated or untreated mice. During this metabolic process about 40% of the microsomal P-450 isozymes are destroyed, but the remainder still demethylates aminopyrine. Approx. 180 molecules of VCO are turned over and 132 of epoxyethylcyclooctane (EECO) are formed for each destructive event.
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