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Dynamics of plaque formation in Alzheimer's disease
Journal article   Open access   Peer reviewed

Dynamics of plaque formation in Alzheimer's disease

B Urbanc, L Cruz, S V Buldyrev, S Havlin, M C Irizarry, H E Stanley and B T Hyman
Biophysical journal, v 76(3), pp 1330-1334
Mar 1999
PMID: 10049316
url
https://doi.org/10.1016/S0006-3495(99)77295-4View
Published, Version of Record (VoR) Open

Abstract

Alzheimer Disease - etiology Immunohistochemistry Biophysical Phenomena Plaque, Amyloid - pathology Humans Plaque, Amyloid - chemistry Mice, Transgenic Biophysics Alzheimer Disease - pathology Macromolecular Substances Particle Size Animals Time Factors Amyloid beta-Peptides - genetics Alzheimer Disease - metabolism Amyloid beta-Peptides - metabolism Plaque, Amyloid - metabolism Mice Amyloid beta-Peptides - chemistry Kinetics Disease Models, Animal
Plaques that form in the brains of Alzheimer patients are made of deposits of the amyloid-beta peptide. We analyze the time evolution of amyloid-beta deposition in immunostained brain slices from transgenic mice. We find that amyloid-beta deposits appear in clusters whose characteristic size increases from 14 microm in 8-month-old mice to 22 microm in 12-month-old mice. We show that the clustering has implications for the biological growth of amyloid-beta by presenting a growth model that accounts for the experimentally observed structure of individual deposits and predicts the formation of clusters of deposits and their time evolution.

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Web of Science research areas
Biophysics
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