PT - JOURNAL ARTICLE AU - Ellis, R. J. AU - Olichney, J. M. AU - Thal, L. J. AU - Mirra, S. S. AU - Morris, J. C. AU - Beekly, D. AU - Heyman, A. TI - Cerebral amyloid angiopathy in the brains of patients with Alzheimer's disease AID - 10.1212/WNL.46.6.1592 DP - 1996 Jun 01 TA - Neurology PG - 1592--1596 VI - 46 IP - 6 4099 - http://n.neurology.org/content/46/6/1592.short 4100 - http://n.neurology.org/content/46/6/1592.full SO - Neurology1996 Jun 01; 46 AB - We studied the frequency, severity, and clinical correlations of cerebral amyloid angiopathy (CAA) in 117 CERAD subjects with autopsy-confirmed AD. Eighty-three percent showed at least a mild degree of amyloid angiopathy. Thirty of 117 brains (25.6%) showed moderate to severe CAA affecting the cerebral vessels in one or more cortical regions. These brains also showed a significantly higher frequency of hemorrhages or ischemic lesions than those of subjects with little or no amyloid angiopathy (43.3% versus 23.0%; odds ratio = 2.6, 95% CI = 1.1 to 6.2). High CAA scores also correlated with the presence of cerebral arteriosclerosis and with older age at onset of dementia. Our findings suggest that factors contributing to non-AD-related vascular pathology (e.g., atherosclerosis) may play a role in amyloid deposition in cerebral vessels in AD. NEUROLOGY 1996;46: 1592-1596