Switch-peptides: design and characterization of controllable super-amyloid-forming host-guest peptides as tools for identifying anti-amyloid agents
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A screen of a library of synthetic drugs and natural product extracts identified a botanical extract that modulates the processing of amyloid precursor protein (APP) in cultured cells to produce a lowered ratio of amyloid-beta peptide (1-42) (Aβ42) relativ ...
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A mouse model of amyloid pathology was used to first examine using a cross sectional design changes in retrosplenial cortex activity in transgenic mice aged 5, 11, 17, and 23 months. Attention focused on: (1) overt amyloid labeled with beta-amyloid((1-42)) ...
Aggregation and fibril formation of amyloid-beta (Abeta) peptides Abeta40 and Abeta42 are central events in the pathogenesis of Alzheimer disease. Previous studies have established the ratio of Abeta40 to Abeta42 as an important factor in determining the f ...
American Society for Biochemistry and Molecular Biology2008
The aggregation of proteins is central to many aspects of daily life, including food processing, blood coagulation, eye cataract formation disease and prion-related neurodegenerative infections[1–5]. However, the physical mechanisms responsible for amyloid ...
In Alzheimer's disease, microglia cluster around beta-amyloid deposits, suggesting that these cells are important for amyloid plaque formation, maintenance and/or clearance. We crossed two distinct APP transgenic mouse strains with CD11b-HSVTK mice, in whi ...
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Formation of amyloid-beta (A beta)(1-42) amyloid fibrils, a characteristic feature of Alzheimer's disease (AD), was monitored in situ through atomic force microscopy (AFM). Well-structured amyloid fibrils slowly formed in solution within 24 hours for which ...