Stout TH Image (IMAGE) Scripps Research Institute Caption The new study provides insight into how a critical mitochondrial enzyme, transhydrogenase (TH), works in a process that is key to maintaining healthy cells Credit Image by Josephine Leung, courtesy of the Stout lab, The Scripps Research Institute. 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.