How Diabetes Causes Muscle Loss (1 of 2) (IMAGE) Kobe University Caption When mice develop diabetes we observe muscle mass loss (left) and diminished size of muscle fiber (right). These phenomena did not occur in mice with KLF15-deficiency in muscle. Credit Kobe University Usage Restrictions Please credit 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.