Contact: Sarah Yang
University of California - Berkeley
Caption: Shown above is muscle tissue from a young mouse. On the right side are healthy, new cells created to replace damaged tissue. This ability to regenerate new cells diminishes with age.
Credit: Photo courtesy of Morgan Carlson and Irina Conboy, UC Berkeley
Usage Restrictions: Must include credit to Morgan Carlson and Irina Conboy, UC Berkeley
Related news release: Stem cell researchers give old muscle new pep