Results 11 to 20 of about 263,171 (259)

The Roles of the Amyloid Beta Monomers in Physiological and Pathological Conditions

open access: yesBiomedicines, 2023
Amyloid beta peptide is an important biomarker in Alzheimer’s disease, with the amyloidogenic hypothesis as one of the central hypotheses trying to explain this type of dementia.
Thomas Gabriel Schreiner   +3 more
doaj   +1 more source

Synapses, synaptic activity and intraneuronal Aβ in Alzheimer's disease

open access: yesFrontiers in Aging Neuroscience, 2010
β-amyloid peptide accumulation plays a central role in the pathogenesis of Alzheimer’s disease. Aberrant β-amyloid buildup in the brain has been shown to be present both in the extracellular space and within neurons.
Davide Tampellini
doaj   +1 more source

Neurotoxicity of .BETA.-amyloid.

open access: yesFolia Pharmacologica Japonica, 2000
Recent observations on the neurotoxicity of beta-amyloid have been reviewed and possible roles of racemization of beta-amyloid are discussed. beta 1-40, beta 25-35 and D-Ser26 beta 25-35 (all HCl salt forms), but not commercially available beta 1-40 (TFA salt form), take the beta-structure within few hours in PBS, form fibrils, exert toxic effects on ...
KANEKO, Isao   +2 more
openaire   +3 more sources

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

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

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

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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