White Women's risk of Alzheimer's (image) University of Southern California Share Print E-Mail Caption This is chromosome 19 with the region of the ApoE gene highlighted. Credit USC Stevens Neuroimaging and Informatics Institute Usage Restrictions Use credit information. Share Print E-Mail 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.