THE AGE PARTICULARITY OF ACTIVITIES NADP-DEPENDENT DEHYDROGENASE AND CYTOCHROME P-450 AND B5 CONTENTS IN RAT LIVER DURING OXIDATIVE STRESS INDUCED BY COBALT CHLORIDE
Abstract
Activities of NADP-dependent dehydrogenase and microsomal cytochrome P-450 and b5 contents were studied in liver of rats of the different age after action of CoCl2. It was shown that cytochrome P-450 contents increased in 3 month old and remained on this level in old rats. The cytochrome b5 contents did not change with ageing. The activities of glucose-6-phosphate dehydrogenase and NADP-malate dehydrogenase decreased with ageing, but NADP-isocitrate dehydrogenase and 6-phosphogluconate dehydrogenase increased during ontogenesis. Cytochrome P-450 and b5 contents decreased after single injection CoCl2, more expressed after 7-fold CoCl2 in rats of all ages. Activities of glucose-6-phosphate dehydrogenase, NADP-isocitrate dehydrogenase and NADP-malate dehydrogenase increased after 7-fold injection CoCl2 of young and old rats.
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