Results 21 to 30 of about 376,147 (348)

Acyl peptide hydrolase degrades monomeric and oligomeric amyloid-beta peptide

open access: yesMolecular Neurodegeneration, 2009
Background The abnormal accumulation of amyloid-beta peptide is believed to cause malfunctioning of neurons in the Alzheimer's disease brain. Amyloid-beta exists in different assembly forms in the aging mammalian brain including monomers, oligomers, and ...
O'Connor Peter B   +4 more
doaj   +1 more source

Amyloid oligomer conformation in a group of natively folded proteins. [PDF]

open access: yesPLoS ONE, 2008
Recent in vitro and in vivo studies suggest that destabilized proteins with defective folding induce aggregation and toxicity in protein-misfolding diseases.
Yuji Yoshiike   +5 more
doaj   +1 more source

Ectodomain shedding of the amyloid precursor protein: Cellular control mechanisms and novel modifiers [PDF]

open access: yes, 2006
Proteolytic cleavage in the ectodomain of the amyloid precursor protein (APP) is a key regulatory step in the generation of the Alzheimer's disease amyloid-beta (A beta) pepticle and occurs through two different protease activities termed alpha- and beta-
Lichtenthaler, Stefan F.
core   +1 more source

DHA supplemented in peptamen diet offers no advantage in pathways to amyloidosis: is it time to evaluate composite lipid diet? [PDF]

open access: yesPLoS ONE, 2011
Numerous reports have documented the beneficial effects of dietary docosahexaenoic acid (DHA) on beta-amyloid production and Alzheimer's disease (AD).
Zareen Amtul   +5 more
doaj   +1 more source

Fibrillisation of hydrophobically modified amyloid peptide fragments in an organic solvent [PDF]

open access: yes, 2007
The self-assembly of a hydrophobically modified fragment of the amyloid beta(A beta) peptide has been studied in methanol. The peptide FFKLVFF is based on A beta(16-20) extended at the N terminus by two phenylalanine residues.
Castelletto, Valeria   +2 more
core   +1 more source

A modelling study of beta-amyloid induced change in hippocampal theta rhythm [PDF]

open access: yes, 2011
Many dementia cases, such as Alzheimer’s disease (AD), are characterized by an increase in low frequency field potential oscillations. However, a definitive understanding of the effects of the beta-Amyloid peptide, which is a main marker of AD, on
Damien Coyle   +3 more
core   +2 more sources

Early Treatment Critical: Bexarotene Reduces Amyloid-Beta Burden In Silico. [PDF]

open access: yesPLoS ONE, 2016
Amyloid-beta peptides have long been implicated in the pathology of Alzheimer's disease. Bexarotene, a drug approved by the U.S. Food and Drug Administration for treating a class of non-Hodgkin's lymphoma, has been reported to facilitate the removal of ...
Joseph Rosenthal   +2 more
doaj   +1 more source

Generic Mechanism of Emergence of Amyloid Protofilaments from Disordered Oligomeric aggregates [PDF]

open access: yes, 2008
The presence of oligomeric aggregates, which is often observed during the process of amyloid formation, has recently attracted much attention since it has been associated with neurodegenerative conditions such as Alzheimer's and Parkinson's diseases.
AR Fersht   +44 more
core   +5 more sources

BETA AMYLOID POLYCLONAL ANTIBODY IMMUNOGENICITY AS EARLY DEVELOPMENT STUDY OF EARLY DIAGNOSIS FOR ALZHEIMER’S DISEASE

open access: yesMalang Neurology Journal, 2017
Background. Alzheimer's disease is a progressive neurologic disease of the brain that triggers irreversible neuronal cell loss, which can interfere with social and occupational functioning.
M. Rasjad Indra   +2 more
doaj   +1 more source

Medroxyprogesterone Acetate Impairs Amyloid Beta Degradation in a Matrix Metalloproteinase-9 Dependent Manner

open access: yesFrontiers in Aging Neuroscience, 2020
Despite the extensive use of hormonal methods as either contraception or menopausal hormone therapy (HT), there is very little known about the potential effects of these compounds on the cellular processes of the brain.
Keyana N. Porter   +6 more
doaj   +1 more source

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