Illustration (IMAGE) University of Michigan Caption Researchers at the University of Michigan have identified a liver hormone that puts a brake on metabolism in mice by dampening their ability to burn fat. The research reveals a potential target for treating metabolic disorders. Credit Illustration by Stephanie King, LSI multimedia designer. 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.