Vanha(hko) tutkimusyhteenveto, johon törmäsin arkistojani penkoessa. Olen laiska, enkä jaksa penkoa josko siihen on jo viitattu Katiskassa, joten tehdään nopea kopypastetus.
American Journal of Veterinary Research
July 2001, Vol. 62, No. 7, Pages 1118-1120
Effect of α-tocopheryl acetate supplementation on vitamin E concentrations in Greyhounds before and after a race
Karen C. Scott , PhD Richard C. Hill , MA, VetMB, PhD Daniel D. Lewis , DVM Alvin J. Boning , Jr , BS Deborah A. Sundstrom , BS
Department of Small Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL 32610- 0126. (Scott, Hill, Lewis, Sundstrom); Department of Animal Science, Institute of Food and Agricultural Science, University of Florida, Gainesville, FL 32610- 0126. (Boning)
Objectives—To determine effect of α-tocopherol supplementation on serum vitamin E concentrations in Greyhounds before and after a race.
Animals—8 adult racing Greyhounds.
Procedure—Dogs were given 2 capsules of α-tocopheryl acetate (total, 680 units [0.5 g]) with food that contained ≤ 15 mg of vitamin E/kg each morning for 7 days. Dogs were exercised in a 30 × 30-m grass paddock for 15 minutes twice a day and raced for 500 m twice a week. Blood samples were collected before and 5 minutes after a race, before supplementation was begun, and after 7 days of supplementation. Blood and diet samples were analyzed for tocopherols and α-tocopheryl acetate.
Results—Before supplementation, serum α-tocopherol concentration after racing (mean ± SD, 6.7 ± 2.4 mg/L ) was significantly lower than before racing (12.2 ± 3.1 mg/L). After supplementation, α- tocopherol concentrations were significantly higher overall, although values obtained before (26.6 ± 5.2 mg/L) and after (29.8 ± 3.6 mg/L) racing were not significantly different.
Conclusions and Clinical Relevance—Supplementation with α-tocopheryl acetate increased serum α-tocopherol concentrations and eliminated the decrease in α-tocopherol concentration that was detected after a race, which may decrease oxidation during exercise and improve performance or recovery. (Am J Vet Res 2001;62:1118–1120)