Yadong Huang, Gladstone Institutes (IMAGE) Gladstone Institutes Caption Gladstone investigator Yadong Huang discovered how to erase damage in human brain cells made by apoE4, the primary genetic risk factor for Alzheimer's disease. Credit Photo: Gladstone Institutes 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.