Abstract
The effects of administration of oxidized rapeseed oil and α-lipoic acid on activities of blood antioxidant enzymes and malondialdehyde (MDA) concentration were studied in laboratory rats fed a high-fat diet. Addition of oxidized oil resulted in increased production of oxygen radicals, evidenced by elevated plasma MDA production. Such effect was counteracted by administration of α-lipoic acid. There was an increase of the activities of superoxide dismutase (total and Cu/Zn-SOD) and catalase 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.
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Acknowledgments
This work was completed and funded by the Silesian University of Medicine projects numbers KNW-1-051/09 and KNW-1-046/10. The authors thank Ewie Chwalińskiej, Edycie Hudziec, and animals' technician Marzenie Kierepce for their technical assistance.
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Zalejska-Fiolka, J., Wielkoszyński, T., Kasperczyk, S. et al. Effects of Oxidized Cooking Oil and α-Lipoic Acid on Blood Antioxidants: Enzyme Activities and Lipid Peroxidation in Rats Fed a High-Fat Diet. Biol Trace Elem Res 145, 217–221 (2012). https://doi.org/10.1007/s12011-011-9186-7
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DOI: https://doi.org/10.1007/s12011-011-9186-7