By injecting human Alzheimer’s disease brain extracts of pathological tau protein (from postmortem donated tissue) into mice with different amounts of amyloid-β (Aβ) plaques in their brains, researchers from the Perelman School of Medicine at the University of Pennsylvania found that amyloid-β facilitates the interaction between the plaques and abnormal tau. This relationship promotes the spread of mutated tau proteins in neurons, which is the hallmark of long-term Alzheimer’s disease. They published their findings this week in Nature Medicine.
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