期刊名称：Journal of Clinical Biochemistry and Nutrition
印刷版ISSN：0912-0009
电子版ISSN：1880-5086
出版年度：2012
卷号：51
期号：1
页码：50-54
DOI：10.3164/jcbn.11-79
出版社：The Society for Free Radical Research Japan
摘要：The aim of this study was to investigate the possible effects of sulphite oxidase (SOX, E.C. 1.8.3.1) deficiency on xenobiotic metabolism. For this purpose, SOX deficiency was produced in rats by the administration of a low molybdenum diet with concurrent addition of 200 ppm tungsten to their drinking water. First, hepatic SOX activity in deficient groups was measured to confirm SOX deficiency. Then, aminopyrine N -demethylase, aniline 4-hydroxylase, aromatase, caffeine N -demethylase, cytochrome b5 reductase, erythromycin N -demethylase, ethoxyresorufin O -deethylase, glutathione S-transferase, N -nitrosodimethylamine N -demethylase and penthoxyresorufin O -deethylase activities were determined to follow changes in the activity of drug metabolizing enzymes in SOX-deficient rats. Our results clearly demonstrated that SOX deficiency significantly elevated A4H, caffeine N -demethylase, erythromycin N -demethylase and N -nitrosodimethylamine N -demethylase activities while decreasing ethoxyresorufin O -deethylase and aromatase activities. These alterations in drug metabolizing enzymes can contribute to the varying susceptibility and response of sulphite-sensitive individuals to different drugs and/or therapeutics used for treatments.
