HDAC levels in the brain (IMAGE) University of Pittsburgh Caption HDAC levels are reduced in the brains of older adults with Alzheimer's disease compared to healthy older adults Credit Tharick Pascoal Usage Restrictions For use with this press release only 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.