APOE4 triggers early breakdowns in the blood-brain barrier

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New USC research reveals how APOE4, a genetic culprit for Alzheimer’s disease, triggers leaks in the brain’s plumbing system, allowing toxic substances to seep into the brain areas responsible for memory encoding and other cognitive functions.

The damage is linked to future problems in learning and memory, even when the disease’s signature sticky plaques have not appeared. The findings suggest that the smallest in the brain, which form the , might be a potential target for early treatment.

The study appears today in Nature.

“This study sheds light on a new way of looking at this disease and possibly treatment in people with the APOE4 gene,…

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