Muscle Atrophy Halted Without TWEAK (image) Rockefeller University Press Caption Muscle fibers grow smaller after denervation (left), but are protected when TWEAK activity is inhibited by a neutralizing antibody (right). Credit Mittal, A., et al. 2010. J. Cell Biol. doi:10.1083/jcb.200909117. Usage Restrictions Reporters may freely use these materials in news coverage, with the appropriate credit information. 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.