Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/54384
Type: Artigo de periódico
Title: An ESR and spectrophotometric study of the denitration of nitroheterocyclic drugs by liver homogenates and their metabolic consumption by liver microsomes from cytochrome P-450-induced mice
Author: Buzukov, AA
Ilasova, VB
Tabak, M
Meirelles, NC
Degterev, IA
Abstract: This work extends a previous study on the mechanism of hepatic denitration of two nitroheterocyclic drugs (NHCD), quinifuryl and nitracrine, in which the release of nitric oxide (NO) from these compounds can be accompanied by the formation of a NO-heme iron complex, Pretreating mice with three inducers of cytochrome P-450 (phenobarbital, clophen A50 and butylated hydroxytoluene (BHT)) increased the yield of the nitrosyl complex which correlated with a rise in the cytochrome P-450 content of mouse liver microsomes. In contrast, treating the animals with beta-naphthoflavone decreased the complex yield while still increasing P-450 content, Treating the animals with any of the above inducers significantly increased the rate of NHCD metabolism in mouse liver microsomes. Based on these results, a possible mechanism for hepatic NHCD denitration is discussed.
Subject: nitroheterocyclic drugs
hepatic denitration
microsomal consumption
nitrosyl complex
ESR
Country: Irlanda
Editor: Elsevier Sci Ireland Ltd
Rights: fechado
Identifier DOI: 10.1016/0009-2797(96)03694-0
Date Issue: 1996
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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