Karsten Zengler (IMAGE) University of California - San Diego Caption Karsten Zengler, Ph.D., professor in the Departments of Pediatrics and Bioengineering at UC San Diego Credit UC San Diego Usage Restrictions Use photo credit License Original 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.