HDACs (IMAGE) Salk Institute Caption In response to glucagon, HDACs quickly move into the nucleus, where they help turn on genes needed for the production of glucose in the liver. Credit Images: Courtesy of Maria Mihaylova, Salk Institute for Biological Studies. Usage Restrictions News media reproduction to illustrate this story permitted with proper attribution as provided above. For one time use 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.