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Chapter category: Neurodegenerative Disease

Potential Role of Endogenous and Exogenous Aβ Binding Molecules in Aβ Clearance and Metabolism

This chapter appears in the following book:

Ab Metabolism and Alzheimer's Disease

Edited by: Takaomi Saido
ISBN: 1-58706-230-5
» Get more information about this book at landesbioscience.com «

Chapter authors:
Donald B. DeMattos, Kelly R. Bales, Steven M. Paul and David M. Holtzman


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Alzheimer's disease (AD) is the leading cause of dementia in the elderly and there are currently no effective therapies for either the prevention or treatment of this disease. The last decade of AD research has been very informative in that major advances have occurred in the understanding of the genetics leading to the early onset familial AD as well as the development of transgenic mouse models which recapitulate several important characteristics of the Alzheimer's pathology. Additionally, substantial efforts have focused on the genesis/synthesis of the Aβ peptide from its precursor protein. A critical area of study that has received less attention is Aβ metabolism. Only until recently have researchers begun to investigate the fate of Aβ following its release from cells into different extracellular compartments. These efforts for the most part have been limited to CNS specific proteolytic events. In this chapter we will review current studies which have begun to dissect the complex systems and molecules that work in concert to regulate Aβ metabolism in both the CNS and peripheral compartments. Unraveling the mechanisms regulating Aβ metabolism in vivo will likely lead to new efforts to improve AD diagnosis as well as rational drug design aimed at both preventing and treating AD.

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