Search Results - "Winston, Gary W"

Application of biomarkers for assessing the biological impact of dredged materials in the Mediterranean: the relationship between antioxidant responses and susceptibility to oxidative stress in the red mullet ( Mullus barbatus) by Regoli, Francesco, Pellegrini, David, Winston, Gary W., Gorbi, Stefania, Giuliani, Silvia, Virno-Lamberti, Claudia, Bompadre, Stefano

“…In the period 1997–2000, approximately 1,800,000 m 3 of material dredged from the Port of Leghorn was discharged into a sea dumping site located 14 miles from…”
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Evaluation of the Total Peroxyl Radical-Scavenging Capacity of Flavonoids:  Structure−Activity Relationships by Dugas, Alton J, Castañeda-Acosta, José, Bonin, Gloria C, Price, Kimberly L, Fischer, Nikolaus H, Winston, Gary W

“…The antioxidant activity of a series of flavonoids against peroxyl radicals generated from thermal homolysis of 2,2‘-azobis-amidinopropane was determined by…”
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Total oxidant scavenging capacity (TOSC) of microsomal and cytosolic fractions from Antarctic, Arctic and Mediterranean scallops: differentiation between three potent oxidants by Regoli, Francesco, Nigro, Marco, Bompadre, Stefano, Winston, Gary W

“…The enhanced formation of reactive oxygen species (ROS) is a common pathway of toxicity induced by stressful environmental conditions. In polar environments,…”
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Beta carotene and its oxidation products have different effects on microsome mediated binding of benzo[a]pyrene to DNA by Salgo, Maria G, Cueto, Rafael, Winston, Gary W, Pryor, William A

“…The effects of β-carotene (βC) and its oxidation products on the binding of benzo[a]pyrene (BaP) metabolites to calf thymus DNA was investigated in the…”
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Quantification of Total Oxidant Scavenging Capacity of Antioxidants for Peroxynitrite, Peroxyl Radicals, and Hydroxyl Radicals by Regoli, Francesco, Winston, Gary W.

“…We have extended the application of our previously reported total oxidant scavenging capacity (TOSC) assay (Winstonet al., Free Radical Biol. Med.24, 480–493,…”
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Integrating enzymatic responses to organic chemical exposure with total oxyradical absorbing capacity and dna damage in the european eel Anguilla anguilla by Regoli, Francesco, Winston, Gary W., Gorbi, Stefania, Frenzilli, Giada, Nigro, Marco, Corsi, Ilaria, Focardi, Silvano

“…In this work, susceptibility to oxidative stress was analyzed under laboratory conditions in the European eel Anguilla anguilla. Eels were treated with…”
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Antioxidants and total oxyradical scavenging capacity during grass shrimp, Palaemonetes pugio, embryogenesis by Winston, Gary W., Lemaire, Danielle G.E., Lee, Richard F.

“…During embryogenesis in grass shrimp the capacity to scavenge oxyradicals increased as measured by the Total Oxyradical Scavenging Capacity (TOSC) assay. The…”
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Oxygen radical production in the sea anemone Anthopleura elegantissima and its endosymbiotic algae by DYKENS, J. A, SHICK, J. M, BENOIT, C, BUETTNER, G. R, WINSTON, G. W

“…ABSTRACT Host animals in algal-invertebrate endosymbiotic associations are exposed to photosynthetically generated hyperoxia while in sunlight, conditions…”
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A Rapid Gas Chromatographic Assay for Determining Oxyradical Scavenging Capacity of Antioxidants and Biological Fluids by Winston, Gary W., Regoli, Francesco, Dugas, Alton J., Fong, Jessica H., Blanchard, Kristie A.

“…Herein, we report a new, rapid,and reliable method for measuring the protective antioxidant potential of pure antioxidant solutions or biological tissues…”
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Antioxidant defenses in killifish ( Fundulus heteroclitus) exposed to contaminated sediments and model prooxidants: short-term and heritable responses by Meyer, Joel N., Smith, Jim D., Winston, Gary W., Di Giulio, Richard T.

“…A population of killifish ( Fundulus heteroclitus) inhabiting a Superfund site on the Elizabeth River (VA, USA) is tolerant of the acute toxicity of the…”
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Induction Time Course of Cytochromes P450 by Phenobarbital and 3-Methylcholanthrene Pretreatment in Liver Microsomes of Alligator mississippiensis by Ertl, Robin P, Stegeman, John J, Winston, Gary W

“…Alligator mississippiensis has at least two classes of inducible hepatic microsomal cytochromes P450 (CYP): (1) those induced by 3-methylcholanthrene (3MC),…”
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Enzymatic and Nonenzymatic Production of Free Radicals from the Carcinogens 4-Nitroquinoline N-Oxide and 4-Hydroxylaminoquinoline N-Oxide by Fann, Yang C, Metosh-Dickey, Caroline A, Winston, Gary W, Sygula, Andrzej, Ramakrishna Rao, D. N, Kadiiska, Maria B, Mason, Ronald P

“…The anion radicals of 4-nitroquinoline N-oxide (4-NQO) and 4-nitrosoquinoline N-oxide (4-NOQO) carcinogens were detected and characterized by electron spin…”
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Oxyradical scavenging capacity by the S9 fraction of Hexagenia spp. nymphs from the Western Basin of Lake Erie: neutralisation of three potent oxidants by Laubender, Benjamin G., Krieger, Kenneth A., Winston, Gary W.

“…Oxidative stress is a general response of aquatic organisms to environmental contamination. Metals and organic compounds capable of redox cycling cause…”
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Sex-related responses to oxidative stress in primary cultured hepatocytes of European flounder ( Platichthys flesus L. ) by Winzer, Katja, Winston, Gary W, Becker, Wilhelm, Van Noorden, Cornelis J.F, Köehler, Angela

“…Effects of oxidative stress induced by xenobiotic compounds were studied in primary cultures of isolated hepatocytes of immature European flounder (…”
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Reactions of Peroxynitrite with Aldehydes as Probes for the Reactive Intermediates Responsible for Biological Nitration by Uppu, Rao M, Winston, Gary W, Pryor, William A

“…We have examined the reactions of peroxynitrite with short-chain aliphatic aldehydes to model the reaction of the peroxynitrite anion (ONOO-) with CO2…”
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Spectral analysis and catalytic activities of the microsomal mixed-function oxidase system of the sea anemone (phylum: Cnidaria) by Heffernan, Linda M, Winston, Gary W

“…Cnidarians are primarily marine organisms with a wide and diverse habitat worldwide. Previous studies from our laboratory demonstrated the presence of proteins…”
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Hepatic monooxygenase induction and promutagen activation in channel catfish from a contaminated river basin by Winston, G W, Shane, B S, Henry, C B

“…To better understand the etiology of cancer in fish from polluted waters, the impact of environmental contaminants on xenobiotic metabolism of channel catfish…”
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novel substrate for yeast alcohol dehydrogenase-p-nitroso-N,N-dimethylaniline by Trivic, S, Leskovac, V, Pericin, D, Winston, G.W

“…Yeast alcohol dehydrogenase (EC 1.1.1.1) catalyzes the novel reduction of p-nitroso-N,N-dimethylaniline with NADH as a cofactor. Apparent kinetic constants for…”
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Aldehyde dismutase activity of yeast alcohol dehydrogenase by TRIVIC, S, LESKOVA, V, WINSTON, G. W

“…Yeast alcohol dehydrogenase (EC 1.1.1.1) is able to catalyze the oxidation of acetaldehyde by NAD+ with a concomitant formation of ethanol, at pH 8.8 and pH…”
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Bioorganic Mechanisms of the Formation of Free Radicals Catalyzed by Glucose Oxidase by Trivić, Svetlana, Leskovac, Vladimir, Zeremski, Jasmina, Vrvić, Miroslav, Winston, Gary W.

“…In this communication, we have described the activation of several xenobiotics by glucose oxidase from Aspergillus niger. The following compounds are readily…”
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