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    Exercise-induced alterations in serum myeloperoxidase in Standardbreds (2014)

    Art
    Zeitschriftenartikel / wissenschaftlicher Beitrag
    Autoren
    Haberkamp, Katrin (WE 17)
    Bondzio, Angelika (WE 3)
    Arndt, Gisela (WE 16)
    Einspanier, Ralf (WE 3)
    Carstanjen, Bianca (WE 17)
    Quelle
    Journal of veterinary science / The Korean Society of Veterinary Science; (ahead of print - zuletzt geprüft am 28.01.15)
    ISSN: 1229-845x
    Verweise
    Pubmed: 23820169
    Kontakt
    Institut für Veterinär-Biochemie

    Oertzenweg 19 b
    14163 Berlin
    Tel.+49 30 838 62225 Fax.+49 30 838-62584
    email:biochemie@vetmed.fu-berlin.de

    Abstract / Zusammenfassung

    This study was performed to give first insight into the effects of a single bout of exercise under field conditions on serum myeloperoxidase-activity (MPOa) in Standardbreds over a time interval of 48h. Myeloperoxidase is an interesting parameter for the activity of leucocytes. Additionally malondialdehyde (MDA) as a parameter for oxidative stress in lipids was likewise evaluated. Blood samples were obtained from 20 trained Standardbreds before exercise (T0), and at 5min (T5min), 4h (T4h), 24h (T24h) and 48h (T48h) after exercise. Serum MPOa, MDA, and common hematologic parameters were measured. Heart rate, locomotory speed, distance and exercise duration were continuously recorded during exercise. Exercise induced a significant increase in median values of serum MPOa with highest values at T5min, whereas the median of MPOa decreased to resting values at T24h. Mean serum MDA values also increased significantly at T5min. Most hematologic parameters were significantly (p<0.05) affected by exercise. Results indicate that exercise influences median serum MPOa values. A contribution of MPO to the development of exercise-induced oxidative stress in lipids could not be demonstrated by formation of serum MDA.