Abstract
Resveratrol has been reported to have antitumoural effects and recently it has been demonstrated that resveratrol partially blocks skeletal muscle wasting by interfering with NF-kappaB activation. We decided to investigate the potential anti-wasting properties of resveratrol on different models of cancer cachexia in experimental animals. Incubations of isolated extensor digitorum longus muscles in the presence of 30 microM of resveratrol caused a significant decrease in the rate of protein degradation. However, administration of resveratrol in vivo to both rats bearing the Yoshida AH-130 ascites hepatoma (at the dose of 1 mg/kg body weight) and mice bearing the Lewis lung carcinoma (at two different doses, 5 and 25 mg/kg body weight) had no effect on skeletal muscle mass or body weight in tumour-bearing rodents. In addition, a combination of resveratrol (3 mg/kg body weight) and fish oil was also unable to induce any changes in skeletal muscle weights. It is therefore concluded from this study that resveratrol is unable to influence muscle mass in vivo and has no potential role as anticachectic agent for the treatment of muscle wasting associated with tumour growth.
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