ApoE4, a protein linked to both Alzheimer’s disease and a form of dementia caused by damage of blood vessels in the brain, increases the risk of cognitive impairment by reducing the number and responsiveness of blood vessels in the organ, a study by Weill Cornell Medicine researchers suggests.
The study, published Sept. 19 in Nature Communications, helps explain the connection between ApoE4 and vascular dementia — the second most common form of dementia after Alzheimer’s disease — as...