Research hints at underlying cause for Alzheimer's drug trial failures

Research hints at underlying cause for Alzheimer's drug trial failures:

Dementia Big
Because Alzheimer’s disease (AD) is the leading cause of dementia, many people use the two terms interchangeably. But inadequate blood flow to the brain due to microinfarcts, mini-strokes, or strokes is a hallmark of a disease called Vascular Cognitive Impairment and Dementia (VCID). VCID is the second most common cause of dementia, and the two are not mutually exclusive – researchers estimate that 40-60% of Alzheimer’s disease patients also have VCID.

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