Study finds path for addressing Alzheimer’s blood-brain barrier impairment

Study finds path for addressing Alzheimer's blood-brain barrier impairment
A 3D rendering of a lab-grown blood brain barrier carrying the APOE4 gene variant shows a heavy accumulation of amyloid on the vessel (green). Credit: Blanchard et. al./MIT Picower Institute

By developing a lab-engineered model of the human blood-brain barrier (BBB), neuroscientists at MIT’s Picower Institute for Learning and Memory have discovered how the most common Alzheimer’s disease risk gene causes amyloid protein plaques to disrupt the brain’s vasculature and showed they could prevent the damage with medications already approved for human use.

About 25 percent of people have the APOE4 variant of the APOE gene, which puts them at substantially greater risk for Alzheimer’s disease. Almost…

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