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Xenobiotica
the fate of foreign compounds in biological systems
Volume 5, 1975 - Issue 11
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Research Article

Microsomal N-Hydroxylation of Dibenzylamine

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Pages 677-686 | Received 05 May 1975, Published online: 22 Sep 2008
 

Abstract

1. The properties of the rabbit liver microsomal enzyme system(s) catalysing the formation of N,N-dibenzylhydroxylamine as the major metabolite of dibenzylamine have been investigated.

2. The system consists of NADPH- and NADH-dependent components which are differentiated by their different pH optima and sensitivity towards cyanide.

3. The effect of various metabolic inhibitors on the N-oxidation process in vitro are investigated.

4. The N-oxidation of the parent amine was inhibited by CO, SKF 525-A, and inhibitors known to interact with microsomal cytochrome P-450. Phenobarbitone pre-treatment stimulates further metabolism of the hydroxylamine.

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