Brain bleeds in older adults linked to amyloid deposits in blood vessels

A study of two large cohorts of 600,000 participants in the US and UK showed that the presence of amyloid deposits in the cerebral blood vessels, known as cerebral amyloid angiopathy (CAA), is linked to isolated nontraumatic subdural hemorrhages. The study should lead to a better understanding of both conditions and suggests that subdural hemorrhage patients should be screened for CAA so that treatments could be developed for them. Such screening could greatly benefit Alzheimer’s patients since they also commonly have amyloid deposits in other brain tissue. This study was supported by the National Institute of Neurological Disorders and Stroke, part of the National Institutes of Health.

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