Results 181 to 190 of about 11,801 (261)
Review and perspective on the use of mixed-function oxygenase enzymes in biological monitoring
Comparative Biochemistry and Physiology Part C: Comparative Pharmacology, 1987 It is often suggested that changes in simple biochemical/physiological responses may be useful for predicting the impacts of pollutants at population and community levels of biological organization. There are serious conceptual constraints to such a thesis and its seems likely that such simple responses can go no further than serving as early warning ...
Jerry F. Payne +3 more
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A bleached-kraft mill effluent fraction causing induction of a fish mixed-function oxygenase enzyme
Environmental Toxicology and Chemistry, 1996 Abstract Pulp mill effluents contain a myriad of chemicals that have the potential to cause deleterious effects on aquatic biota in receiving waters. Some of these chemicals evoke an acute lethal response of exposed biota while others evoke sublethal responses.
B. Kent Burnison +3 more
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Comparative Biochemistry and Physiology Part C: Comparative Pharmacology, 1991 1. Mixed-function oxidase (MFO) system components (cytochrome P-450, "418-peak", cytochrome b5 and NADPH-cytochrome c(P-450) reductase) and inducible antioxidant enzymes (catalase, superoxide dismutase (SOD), glutathione peroxidase (GPX) and DT-diaphorase) has been determined in digestive glands of mussels (Mytilus galloprovincialis) collected from ...
Cinta Porte +3 more
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Biochemical Pharmacology, 1977 Abstract Treatment of pregnant rats with 2,3,7,8-tetrachlorodibenzo- p -dioxin (TCDD) resulted in a dose-dependent induction of a mixed-function oxidase system in fetal and maternal extra-hepatic tissues. At doses of 6 μmg/kg, aryl hydrocarbon hydroxylase (AHH) activity was increased 24-, 22- and 4-fold in fetal lung, kidney and skin, respectively ...
David L. Berry +6 more
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Effect of benznidazole on the mixed function oxygenase system from rat liver microsomes.
Archives internationales de pharmacodynamie et de therapie, 1985 Previous Benznidazole (Bz) administration to rats (30 mg/kg, i.p.) significantly prolongs their pentobarbital sleeping time. This prolonging effect of Bz administration correlates with the inhibitory action of Bz on the liver aminopyrine or ethylmorphine N-demethylase activities. Inhibition of these enzyme systems by Bz is non-competitive and would not
M Masana +3 more
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Journal of Ethnopharmacology, 1997 The present study reports on the effects of horminone on serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels, on hepatic cytochrome P450 (P450) and cytochrome b5 (cyt b5) contents and on the activities of NADPH-cytochrome P450 reductase (NR), mixed function mono-oxygenases (MFO), glutathione-S-transferase (GST) and ...
R. Ferreira +4 more
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Environmental Toxicology and Chemistry, 1995 Abstract Seasonal variations in the mixed-function oxygenase (MFO) system components (cytochrome P450, “418” peak, and NADPH-cytochrome c[P450] reductase) and antioxidant enzymes (catalase, superoxide dismutase [SOD], glutathione peroxidase [GPX], and DT-diaphorase) of the mussel Mytilus galloprovincialis have been evaluated.
Montserrat Solé +2 more
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