Age-related muscle wasting in mice (IMAGE) University of Basel Caption Muscle size decreases at high age and is preserved by rapamycin treatment (from left to right: mouse muscle cross sections from adult, old and rapamycin treated old mice). Credit Image: University of Basel, Biozentrum Usage Restrictions With current release only License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.