Electron Microscopic Image of Nerves (IMAGE) Max-Planck-Gesellschaft Caption These are electron microscopic images of cross sections of nerves in a healthy rat (left), a rat suffering from CMT1A (centre) and a rat suffering from CMT1A that has been treated with neuregulin-1 (right). The neuregulin-1 treatment leads to improved myelination in the CMT1A rat model, which comes close to that of healthy animals. Credit Fledrich et al, Nat. Med. 2014 Usage Restrictions None 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.