Results 21 to 30 of about 1,107,303 (283)

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

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

Pro-domain removal in ASP-2 and the cleavage of the amyloid precursor are influenced by pH. [PDF]

open access: yes, 2002
BACKGROUND: One of the signatures of Alzheimer's disease is the accumulation of aggregated amyloid protein, Abeta, in the brain. Abeta arises from cleavage of the Amyloid Precursor protein by beta and gamma secretases, which present attractive candidates
Brian Austen   +5 more
core   +1 more source

Consequences of the interaction of amyloid beta with amyloid binding alcohol dehydrogenase and the receptor for advanced glycation end products [PDF]

open access: yes, 2008
Amyloid beta (Aβ) has been postulated to be the principle initiator of the pathogenesis of Alzheimer’s disease (AD). Therefore, understanding the underlying mechanisms of Aβ induced neurotoxicity in the early stages of AD would be essential for finding ...
Ren, Yimin
core   +2 more sources

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

β-Amyloid Monomers Are Neuroprotective [PDF]

open access: yesThe Journal of Neuroscience, 2009
The 42-aa-long β-amyloid protein—Aβ 1-42 —is thought to play a central role in the pathogenesis of Alzheimer's disease (AD) (Walsh and Selkoe, 2007). Data from AD brain (Shankar et al., 2008), transgenic APP (amyloid precursor protein)-overexpressing mice (Lesné et al., 2006), and neuronal ...
ML Giuffrida   +13 more
openaire   +6 more sources

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

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

Plasma pyroglutamate‐modified amyloid beta differentiates amyloid pathology

open access: yesAlzheimer’s & Dementia: Diagnosis, Assessment & Disease Monitoring, 2020
Introduction Pyroglutamate‐modified amyloid β (AβpE3) could be a biomarker for Aβ plaque pathology in the brain. An ultra‐high‐sensitive assay is needed for detecting AβpE3‐40.
Pei‐Ning Wang   +6 more
doaj   +1 more source

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