Results 11 to 20 of about 42,007 (233)

Presenilin/γ-secretase and inflammation [PDF]

open access: yesFrontiers in Aging Neuroscience, 2010
Presenilins (PS) are the catalytic components of gamma-secretase, an aspartyl protease that regulates through proteolytic processing the function of multiple signaling proteins. Specially relevant is the gamma-secretase-dependent cleavage of the beta-amyloid precursor protein (APP) since generates the beta-amyloid (Abeta) peptides that aggregate and ...
Carlos A Saura
openaire   +5 more sources

The novel anti-colitic effect of β-adrenergic receptors via modulation of PS1/BACE-1/Aβ axis and NOTCH signaling in an ulcerative colitis model

open access: yesFrontiers in Pharmacology, 2022
Although dysautonomia was documented in inflammatory bowel disease, with activation of the stress-related sympathetic system, the role of agonists/antagonists of the adrenergic receptors is not conclusive. Moreover, ulcerative colitis was recently linked
Salma Nasser   +4 more
doaj   +1 more source

Patient-Derived Fibroblasts With Presenilin-1 Mutations, That Model Aspects of Alzheimer’s Disease Pathology, Constitute a Potential Object for Early Diagnosis

open access: yesFrontiers in Aging Neuroscience, 2022
Alzheimer’s disease (AD), a neurodegenerative disorder that can occur in middle or old age, is characterized by memory loss, a continuous decline in thinking, behavioral and social skills that affect the ability of an individual to function independently.
Gustavo Lopez-Toledo   +6 more
doaj   +1 more source

Intracellular calcium deficits in Drosophila cholinergic neurons expressing wild type or FAD-mutant presenilin. [PDF]

open access: yesPLoS ONE, 2009
Much of our current understanding about neurodegenerative diseases can be attributed to the study of inherited forms of these disorders. For example, mutations in the presenilin 1 and 2 genes have been linked to early onset familial forms of Alzheimer's ...
Kinga Michno   +4 more
doaj   +1 more source

Excessive/Aberrant and Maladaptive Synaptic Plasticity: A Hypothesis for the Pathogenesis of Alzheimer’s Disease

open access: yesFrontiers in Aging Neuroscience, 2022
The amyloid hypothesis for the pathogenesis of Alzheimer’s disease (AD) is widely accepted. Last year, the US Food and Drug Administration considered amyloid-β peptide (Aβ) as a surrogate biomarker and approved an anti-Aβ antibody, aducanumab, although ...
Shigeki Kawabata
doaj   +1 more source

Active site geometry stabilization of a presenilin homolog by the lipid bilayer promotes intramembrane proteolysis

open access: yeseLife, 2022
Cleavage of membrane proteins in the lipid bilayer by intramembrane proteases is crucial for health and disease. Although different lipid environments can potently modulate their activity, how this is linked to their structural dynamics is unclear. Here,
Lukas P Feilen   +5 more
doaj   +1 more source

Human PSEN1 Mutant Glia Improve Spatial Learning and Memory in Aged Mice

open access: yesCells, 2022
The PSEN1 ΔE9 mutation causes a familial form of Alzheimer’s disease (AD) by shifting the processing of amyloid precursor protein (APP) towards the generation of highly amyloidogenic Aβ42 peptide.
Henna Jäntti   +18 more
doaj   +1 more source

Regulation of autophagy, lipid metabolism, and neurodegenerative pathology by heparan sulfate proteoglycans

open access: yesFrontiers in Genetics, 2023
Heparan sulfate modified proteins or proteoglycans (HSPGs) are an abundant class of cell surface and extracellular matrix molecules. They serve important co-receptor functions in the regulation of signaling as well as membrane trafficking.
Nicholas Schultheis   +8 more
doaj   +1 more source

Intramembrane proteolysis by presenilin and presenilin-like proteases [PDF]

open access: yesJournal of Cell Science, 2003
Regulated intramembrane proteolysis is a novel mechanism involving proteases that hydrolyze their substrates in a hydrophobic environment. Presenilin (PS) 1 and PS 2 are required for intramembrane cleavage of an increasing number of type I membrane proteins, including the amyloid precursor protein of Alzheimer's disease and the Notch receptor, which ...
Weiming, Xia, Michael S, Wolfe
openaire   +2 more sources

The Amyloid Cascade Hypothesis in Alzheimer’s Disease: Should We Change Our Thinking?

open access: yesBiomolecules, 2023
Old age increases the risk of Alzheimer’s disease (AD), the most common neurodegenerative disease, a devastating disorder of the human mind and the leading cause of dementia.
Markku Kurkinen   +5 more
doaj   +1 more source

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