Furazolidone induces the activity of microsomal enzymes that metabolize furazolidone in chickens

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概要

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• The nitrofuran antibacterial agent furazolidone (FZ) is still used in veterinary medicine in some countries in the Middle and Far East. The present study aimed to show the effect of FZ on the activity of microsomal enzymes that metabolize FZ, and to identify the enzyme that contributes to FZ metabolism in chickens. Wistar rats and White Leghorn chickens were administered FZ once a day for 4 consecutive days. FZ metabolism was accelerated by FZ administration in chickens, but not in rats. The elevation of FZ metabolism coincided with the induction of NADPH cytochrome P450 reductase (CPR) activity in chickens, but such induction was not observed in rats. FZ metabolizing activities were inhibited in the presence of a CPR inhibitor (diphenylene iodonium chloride) but not by the addition of archetypal cytochrome P450 inhibitors (CO or n-octylamine). The preset study concluded that FZ accelerated its own metabolism in the chicken by induction of the activity of CPR.

著者

• Matsumoto Tomoyuki

  Lavoratory Of Toxicology Graduate School Of Veterinary Medicine Hokkaido University

関連論文

• The effects of antibacterial agent furazolidone and its metabolites on the liver drug metabolizing enzyme system in chicken and rat. (DRUG METABOLISM) (GENERAL SESSION BY POSTER PRESENTATION) (Proceedings of the 30th Annual Meeting)
• Furazolidone induces the activity of microsomal enzymes that metabolize furazolidone in chickens

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