Changes in adipopnectin, leptin, and fat mass after clenbuterol treatment in horses

Medicine and Science in Sports and Exercise
C F KearnsKaryn Malinowski

Abstract

Adipose tissue plays complex role(s) in metabolic and endocrine control. To date, little work has been done in the horse regarding adipocytokines. This study was conducted to determine whether therapeutic levels of chronic beta-agonist administration, exercise, or both could alter their concentrations. A total of 23 standard-bred mares were divided into four experimental groups: clenbuterol (2.4 microg.kg(-1) bw twice daily for 8 wk) plus exercise (8 wk, 20 min.d(-1) at 50% VO2max; CLENEX; N = 6), clenbuterol only (CLEN; N = 6), exercise only (EX; N = 5), and control (CON; N = 6). Rump fat thickness was measured using B-mode ultrasound and percent body fat (%fat) was calculated. Plasma adiponectin and leptin concentrations were measured using radioimmunoassay (RIA). In the absence of purified equine adiponectin or leptin, results were expressed as human equivalents of immunoreactive adipocytokines. The change in plasma immunoreactive (ir)-adiponectin HE concentration was negatively correlated (r = -0.520; P = 0.01) to the change in fat mass and positively correlated (r = 0.446; P = 0.03) to the change in fat-free mass. The change in plasma ir-leptin HE concentration was positively correlated (r = 0.550; P = 0.02) to the change ...Continue Reading

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Citations

Dec 30, 2011·American Journal of Veterinary Research·Jennifer R ReadRose D Nolen-Walston
Oct 18, 2008·The Veterinary Journal·Charles F Kearns, Kenneth H McKeever
Apr 10, 2008·Reproduction in Domestic Animals = Zuchthygiene·N Cebulj-KaduncV Cestnik
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Apr 25, 2015·American Journal of Veterinary Research·Rose D Nolen-WalstonLawrence R Soma
May 19, 2010·Medicine and Science in Sports and Exercise·Guilherme Giannini ArtioliAntonio Herbert Lancha

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