Role of antioxidants in the protection against oxidative stress in cattle--trace elements and enzymatic mechanisms (Part 3).
The most important enzymatic mechanisms which protect an organism against oxidative stress are superoxide dismutase (SOD), peroxidase (Px), e.g. glutathione peroxidase (GSH-Px) and ascorbate peroxidase, catalase and glutathione reductase. Their activity depends on many trace elements. Enzymatic mechanisms, functioning under physiological conditions, prevent the spread of free radical reactions. New and reoccurring metabolic and infectious diseases of cattle emerge when there is a disproportion in the balance between reactive oxygen species and antioxidative enzymatic barrier.
Department of Clinical Sciences, Faculty of Veterinary Medicine, Warsaw Agricultural University, Nowoursynowska 159C, 02 787 Warsaw, Poland. zhwlomza@op.pl
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Kleczkowski
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Kluciński
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Sikora
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Zdanowicz
D000821:Animal Feed; D000818:Animals; D000975:Antioxidants / Q000008:administration & dosage / Q000627:therapeutic use*; D002417:Cattle; D002418:Cattle Diseases / Q000517:prevention & control*; D003612:Dairying; D005260:Female; D018384:Oxidative Stress
D000975:Antioxidants