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J Neurochem. 2004 May;89(4):807-11.

Clearing amyloid through the blood-brain barrier.

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Frank P. Smith Laboratories for Neuroscience, Department of Neurological Surgery, University of Rochester Medical Center, New York 14642, USA.


According to the amyloid hypothesis, accumulation of amyloid beta-peptide (A beta) in the brain is the primary pathogenic event in Alzheimer's disease (AD). Recent evidence indicates that A beta within the intravascular space is linked to A beta deposited in the brain suggesting that transport of A beta between the brain, blood and cerebrospinal fluid, and across the blood-brain barrier, regulates brain A beta. Thus, understanding A beta exchanges between brain and blood, and vice versa, and developing transport-based systemic A beta-lowering strategies may provide new important insights into pathogenesis and therapeutic control of AD.

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