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Effects of oxidized cooking oil and α-lipoic acid on liver antioxidants: enzyme activities and lipid peroxidation in rats fed a high fat diet. 2010

Jolanta Zalejska-Fiolka, and Tomasz Wielkoszyński, and Sławomir Kasperczyk, and Aleksandra Kasperczyk, and Ewa Birkner
Department of Biochemistry, Silesian University of Medicine, Zabrze, Poland. jolafiolka@wp.pl

The effects of administration of oxidized rapeseed oil and α-lipoic acid on activities of hepatic antioxidant enzymes and lipid peroxidation were studied in laboratory rats. There was an increase of the activities of superoxide dismutase, glutathione peroxidase, glutathione reductase, and glucose-6-phosphate dehydrogenase in rats fed a high fat diet to which 10% oxidized oil was added. Administration of α-lipoic acid resulted in a decrease of the activities of these enzymes. Addition of oxidized oil also resulted in increased production of oxygen radicals, evidenced by elevated malondialdehyde production. Such effect was counteracted by administration of α-lipoic acid.

UI MeSH Term Description Entries
D008063 Thioctic Acid An octanoic acid bridged with two sulfurs so that it is sometimes also called a pentanoic acid in some naming schemes. It is biosynthesized by cleavage of LINOLEIC ACID and is a coenzyme of oxoglutarate dehydrogenase (KETOGLUTARATE DEHYDROGENASE COMPLEX). It is used in DIETARY SUPPLEMENTS. Lipoic Acid,Alpha-Lipogamma,Alpha-Lipon Stada,Alpha-Liponsaure Sofotec,Alpha-Lippon AL,Alphaflam,Azulipont,Fenint,Juthiac,Liponsaure-ratiopharm,MTW-Alphaliponsaure,Neurium,Pleomix-Alpha,Pleomix-Alpha N,Thioctacid,Thioctacide T,Thiogamma Injekt,Thiogamma oral,Tromlipon,Verla-Lipon,alpha-Lipoic Acid,alpha-Liponaure Heumann,alpha-Liponsaure von ct,alpha-Vibolex,biomo-lipon,duralipon,espa-lipon,Acid, alpha-Lipoic,Alpha Lipogamma,Alpha Lipon Stada,Alpha Liponsaure Sofotec,Alpha Lippon AL,AlphaLipogamma,AlphaLipon Stada,AlphaLiponsaure Sofotec,AlphaLippon AL,Injekt, Thiogamma,Liponsaure ratiopharm,Liponsaureratiopharm,MTW Alphaliponsaure,MTWAlphaliponsaure,Pleomix Alpha,Pleomix Alpha N,PleomixAlpha,PleomixAlpha N,Verla Lipon,VerlaLipon,alpha Lipoic Acid,alpha Liponaure Heumann,alpha Liponsaure von ct,alpha Vibolex,alphaLiponaure Heumann,alphaLiponsaure von ct,alphaVibolex,biomo lipon,biomolipon,espa lipon,espalipon
D008297 Male Males
D008315 Malondialdehyde The dialdehyde of malonic acid. Malonaldehyde,Propanedial,Malonylaldehyde,Malonyldialdehyde,Sodium Malondialdehyde,Malondialdehyde, Sodium
D004032 Diet Regular course of eating and drinking adopted by a person or animal. Diets
D004041 Dietary Fats Fats present in food, especially in animal products such as meat, meat products, butter, ghee. They are present in lower amounts in nuts, seeds, and avocados. Fats, Dietary,Dietary Fat,Fat, Dietary
D005227 Fatty Acids Organic, monobasic acids derived from hydrocarbons by the equivalent of oxidation of a methyl group to an alcohol, aldehyde, and then acid. Fatty acids are saturated and unsaturated (FATTY ACIDS, UNSATURATED). (Grant & Hackh's Chemical Dictionary, 5th ed) Aliphatic Acid,Esterified Fatty Acid,Fatty Acid,Fatty Acids, Esterified,Fatty Acids, Saturated,Saturated Fatty Acid,Aliphatic Acids,Acid, Aliphatic,Acid, Esterified Fatty,Acid, Saturated Fatty,Esterified Fatty Acids,Fatty Acid, Esterified,Fatty Acid, Saturated,Saturated Fatty Acids
D005980 Glutathione Reductase Catalyzes the oxidation of GLUTATHIONE to GLUTATHIONE DISULFIDE in the presence of NADP+. Deficiency in the enzyme is associated with HEMOLYTIC ANEMIA. Formerly listed as EC 1.6.4.2. Glutathione-Disulfide Reductase,Reductase, Glutathione,Reductase, Glutathione-Disulfide
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D000975 Antioxidants Naturally occurring or synthetic substances that inhibit or retard oxidation reactions. They counteract the damaging effects of oxidation in animal tissues. Anti-Oxidant,Antioxidant,Antioxidant Activity,Endogenous Antioxidant,Endogenous Antioxidants,Anti-Oxidant Effect,Anti-Oxidant Effects,Anti-Oxidants,Antioxidant Effect,Antioxidant Effects,Activity, Antioxidant,Anti Oxidant,Anti Oxidant Effect,Anti Oxidant Effects,Anti Oxidants,Antioxidant, Endogenous,Antioxidants, Endogenous
D013482 Superoxide Dismutase An oxidoreductase that catalyzes the reaction between SUPEROXIDES and hydrogen to yield molecular oxygen and hydrogen peroxide. The enzyme protects the cell against dangerous levels of superoxide. Hemocuprein,Ag-Zn Superoxide Dismutase,Cobalt Superoxide Dismutase,Cu-Superoxide Dismutase,Erythrocuprein,Fe-Superoxide Dismutase,Fe-Zn Superoxide Dismutase,Iron Superoxide Dismutase,Manganese Superoxide Dismutase,Mn-SOD,Mn-Superoxide Dismutase,Ag Zn Superoxide Dismutase,Cu Superoxide Dismutase,Dismutase, Ag-Zn Superoxide,Dismutase, Cobalt Superoxide,Dismutase, Cu-Superoxide,Dismutase, Fe-Superoxide,Dismutase, Fe-Zn Superoxide,Dismutase, Iron Superoxide,Dismutase, Manganese Superoxide,Dismutase, Mn-Superoxide,Dismutase, Superoxide,Fe Superoxide Dismutase,Fe Zn Superoxide Dismutase,Mn SOD,Mn Superoxide Dismutase,Superoxide Dismutase, Ag-Zn,Superoxide Dismutase, Cobalt,Superoxide Dismutase, Fe-Zn,Superoxide Dismutase, Iron,Superoxide Dismutase, Manganese

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