Distribution and muscle-sparing effects of clenbuterol in hindlimb-suspended rats

Pharmacology
Daniel A von DeutschDavid E Potter

Abstract

Based on their anabolic properties in skeletal muscles, beta-adrenergic agonists are of interest as potential countermeasures to microgravity-induced skeletal muscle atrophy. The levels of clenbuterol (Cb), a beta(2)-adrenergic agonist, in both plasma and skeletal muscle were higher in hindlimb-suspended rats than in their nonsuspended Cb-treated controls. Cb treatment was shown to help maintain the body weight in suspended rats, while reducing the amount of mesenteric fat. However, hindlimb suspension attenuated Cb's lipolytic effects. In skeletal muscle, the magnitude of response to unloading and Cb treatment followed a general regional pattern and was muscle and type specific. The highest magnitude of response to unloading was in predominantly slow-twitch muscles, and the least responsive were the predominately fast-twitch muscles.

Citations

Apr 1, 2003·Canadian Journal of Physiology and Pharmacology·Daniel A von DeutschDavid E Potter
Jun 24, 2004·Canadian Journal of Physiology and Pharmacology·F PicquetM Falempin
Jan 1, 2009·Journal of the Japanese Physical Therapy Association = Rigaku Ryōhō·Toshiaki YamazakiKatsuhiko Tachino
Jun 19, 2014·Applied Physiology, Nutrition, and Metabolism = Physiologie Appliquée, Nutrition Et Métabolisme·Koichiro SumiKoichi Nakazato
Aug 3, 2004·Journal of Clinical Pharmacology·Annemarie GraebeHartmut Derendorf
Aug 7, 2009·Journal of Cellular and Molecular Medicine·Angèle ChopardBernard J Jasmin
Mar 19, 2005·Journal of Applied Physiology·Tossaporn YimlamaiSooyeon Park
Jan 1, 2005·Journal of the Japanese Physical Therapy Association = Rigaku Ryōhō·Toshiaki Yamazaki
Dec 24, 2002·Current Opinion in Clinical Nutrition and Metabolic Care·T Peter Stein, Charles E Wade

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