[PDF] Top 20 Increase in Presenilin 1 (PS1) levels in senescence accelerated mice (SAMP8) may indirectly impair memory by affecting amyloid precursor protein (APP) processing
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Increase in Presenilin 1 (PS1) levels in senescence accelerated mice (SAMP8) may indirectly impair memory by affecting amyloid precursor protein (APP) processing
... of presenilin-1 (PS1), nicastrin, APH-1 and ...an increase, while CD-1 mice, a strain that does not exhibit premature memory loss, showed no change with ...increased processing ... See full document
5
Interrelationship between Changes in the Amyloid β 42/40 Ratio and Presenilin 1 Conformation
... The ratio of the longer (Aβ42/Aβ43) to shorter (Aβ40) species is a critical factor determining amyloid fibril formation, neurotox- icity and progression of the amyloid pathology in Alzheimer’s disease. The relative ... See full document
9
Dynamic presenilin 1 and synaptotagmin 1 interaction modulates exocytosis and amyloid β production
... The proximity between PS1 and Syt1 or PS1 NT and PS1 loop domain was evaluated by a previously vali- dated Förster Resonance Energy Transfer (FRET)-based fluorescence lifetime imaging microscopy (FLIM) assay [22, 36, ... See full document
21
Processing Human Milk to Increase Nutrient Density for Preterm Infants.
... Lactose, protein, osmolality, and viscosity of each sample were measured. Lactose measurement was performed with the R-biopharm Lactose/D-galactose enzymatic kit. First, the samples were prepared for kit application by ... See full document
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Presenilin-1 280Glu→Ala Mutation Alters C-Terminal APP Processing Yielding Longer Aβ Peptides: Implications for Alzheimer’s Disease
... Presenilin (PS) mutations enhance the production of the A β 42 peptide that is derived from the amyloid precursor protein (APP). The pathway(s) by which the A β 42 species is preferentially produced has not been ... See full document
11
Binding of longer Aβ to transmembrane domain 1 of presenilin 1 impacts on Aβ42 generation
... dramatic increase in the Aβ42 (43)/Aβ40 ...an increase in the Aβ42(43)/Aβ40 ratio, to a level higher than that with L166P mutant PS1 (Figure 3C and D), one of the most potent pathogenic PS1 mutations ... See full document
10
APP-BP1 inhibits Aβ42 levels by interacting with Presenilin-1
... We showed that suppression of the rat endogenous APP- BP1 caused a dramatic increase in cell-associated Aβ42 (Fig. 4A, left) in addition to the accumulation of APP and CTFs (Fig. 3B–D). To further validate these ... See full document
12
Identification of the novel activity-driven interaction between synaptotagmin 1 and presenilin 1 links calcium, synapse, and amyloid beta
... exacerbated in sporadic AD brains [39]. We propose that PS1/γ-secretase exists in a dynamic equilibrium of different conformational states, which we call “closed” and “open” based on the FRET measurements, that may ... See full document
24
Familial Alzheimer disease–linked mutations specifically disrupt Ca2+ leak function of presenilin 1
... Alzheimer disease (AD) is the most common form of age-related dementia in human beings over the age of 60 years. AD affects about 2% of populations in industrialized countries. The understanding of the molecular ... See full document
11
Mutations in presenilin 2 and its implications in Alzheimer’s disease and other dementia-associated disorders
... APP processing includes non-amyloidogenic and amyloidogenic ...AICD. Presenilin, nicastrin, anterior pharynx-defective 1 (APH-1) and presenilin enhancer 2 (PeN-2) are the parts of ... See full document
10
Presenilin 1 in migration and morphogenesis in the central nervous system
... Presenilin 1 and 2 (Psen1 and Psen2) are polytopic membrane proteins that are mutated in the majority of pedigrees with early-onset familial Alzheimer’s disease (Price and Sisodia, ...‘γ-secretase’ ... See full document
13
Familial Alzheimer’s disease–associated presenilin 1 alters cerebellar activity and calcium homeostasis
... encoding presenilin-1 (PS1) are found in approximately 80% of cases of FAD, with some of these patients presenting cerebellar damage with amyloid plaques and ataxia with unclear ...precursor ... See full document
17
Evidence that the β-catenin Nuclear Translocation Assay Allows for Measuring Presenilin 1 Dysfunction
... serpentine-like integral protein of mainly the endoplasmic reticulum and early-Golgi mem- branes (2–4), but it is also observed in the nuclear envelope (4,5). PSEN1 is constitutively cleaved by an unknown protease, ... See full document
11
Cognitive improvement of compound danshen in an Aβ25 35 peptide induced rat model of Alzheimer’s disease
... BACE1. Presenilin-1 is one of the most import- ant cleaving enzymes of γ-secrectases, which mainly mediates the regulated proteolytic events of APP ...to increase markedly [32, ...an increase ... See full document
9
Cerebrospinal fluid Presenilin-1 increases at asymptomatic stage in genetically determined Alzheimer’s disease
... Classic biomarkers, total and phospho-tau, as well as Aβ42, have shown diagnostic accuracy for incipient AD [11]. However total and phospho-tau also increased as a result of other neurological processes; while levels of ... See full document
11
CSF Presenilin-1 complexes are increased in Alzheimer’s disease
... an increase in levels of T-tau and P-tau in CSF, but tau is also in- creased as result of other neurological ...pathological processing of amyloid are potential candi- ... See full document
13
Changes in γ-secretase activity and specificity caused by the introduction of consensus aspartyl protease active motif in Presenilin 1
... In order to explore the potential catalytic effect of the aspartic acid residues in PS1 TM 6 and 7 domains, we gen- erated mutant PS1 including those containing either a sin- gle DTG triplet or both triplets after ... See full document
12
mBio-2019-Wang-e01344-19.full.pdf
... Env processing in infected macrophages, associated with increased Env incorpora- tion into virions with higher ...Env processing depended genetically on TET2 and ...Env processing and virion ... See full document
12
Eimer, Stefan (2003): Analysis and suppression of mutant sel-12 in Caenorhabditis elegans. Dissertation, LMU München: Fakultät für Chemie und Pharmazie
... Although both sel-12(ar131) and sel-12(ar171) alleles display a highly penetrant Egl defect, the exact phenotype differs. To determine the degree of variability, we compared the phenotypes of both alleles with those of ... See full document
159
Expression of endogenous mouse APP modulates β-amyloid deposition in hAPP-transgenic mice
... Germany; 1:100, 15 min), ionised calcium- binding adapter molecule 1 (IBA1; Wako Chemicals, Germany; 1:1000, 15 min), glial fibrillary acid protein (GFAP; Dako Deutschland GmbH, Germany; ... See full document
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