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1 ing can result in formation of beta-amyloid (Abeta).
2 loidogenic pathway to generate amyloid-beta (Abeta).
3 l fluid (CSF) or plasma in MCI Abeta+ and AD Abeta+.
4 s degradation product, the Alzheimer protein Abeta.
5 ntibody for monomeric and fibrillar forms of Abeta.
6 e maturation of multiple substrates, such as Abeta.
7 tion may contribute to impaired clearance of Abeta.
8 er mimic the oligomers formed by full-length Abeta.
9 bear "tails" derived from the N-terminus of Abeta.
10 tein (App) gene was mutated to produce human Abeta.
11 C) to 5hmC are responsive to the presence of Abeta.
13 we report that the soluble, nonfibrillizing Abeta (1-30) peptide recapitulates full-length Abeta ste
16 during the synthesis to append residues from Abeta(1-14) to the parent macrocyclic beta-hairpin pepti
17 erein parallel and anti-parallel variants of Abeta(1-40) dimers were designed and synthesized, and th
18 n of binary and ternary complexes among TTR, Abeta(1-42) peptide, and TTR stabilizers using isotherma
20 crocyclic beta-hairpin peptides derived from Abeta(16-22) and Abeta(30-36), capable of forming hexame
22 ynthesized macrocyclic peptides derived from Abeta(17-23) and Abeta(30-36) that fold to form beta-hai
23 ing to the abnormal (+)/normal (-) status of Abeta ((18)F-florbetapir or (18)F-florbetaben) positron
24 of functional gap junctions indicating that Abeta(25-35) causes rapid internalization of Cx43 gap ju
26 how that interruption of Cx43 endocytosis in Abeta(25-35)-exposed astrocytes resulted in their retent
28 yclic peptides derived from Abeta(17-23) and Abeta(30-36) that fold to form beta-hairpins and assembl
29 irpin peptides derived from Abeta(16-22) and Abeta(30-36), capable of forming hexamers that can be ob
31 -bead-one compound (OBOC) library to inhibit Abeta(40) aggregation, we investigated eight (8) analogu
34 e abundance of these proteins, as well as of Abeta(42) ExNef further potentiated phosphorylation of T
35 g microglial response to Abeta peptide 1-42 (Abeta(42)) stimulation in vitro, in aging-associated mic
37 TTR against cellular toxicity of pathogenic Abeta, a protein associated with Alzheimer's disease.
39 of APP, BACE1, and the two primary forms of Abeta (Abeta40 and Abeta42) in a primary human cell cult
40 d C-terminal regions, with the N-terminus of Abeta accommodated by the oligomers as an unstructured t
43 neurodegenerative process, including reduced Abeta accumulation as well as tau hyperphosphorylation,
44 containing phospho-deficient PS1 show severe Abeta accumulation in microglia as well as the postsynap
46 line to model the impact of human APP (hAPP)/Abeta accumulation on tauopathy in the entorhinal cortex
49 ured platelets and decreased the adhesion of Abeta-activated platelets to injured carotid arteries in
51 pression scores (PESs) of the (18)F-FDG- and Abeta-ADCRP were compared with Braak tangle stage and Th
54 its high specific affinity for beta-amyloid (Abeta) aggregates, leading to the successful PET imaging
55 tinct effects of IAPP peptides in modulating Abeta aggregation and toxicity and provide new insight i
56 vel the mechanistic consequences of delaying Abeta aggregation via weak metal-ion binding, quantitati
57 been proposed as indicative of beta-amyloid (Abeta) aggregation and thus potential biomarkers for Alz
58 understanding the complex interplay between Abeta, aging, and neurodegeneration within the most vuln
59 thesized that accumulation and deposition of Abeta altered glutamatergic neurotransmission in a tempo
61 the ABX cocktail significantly reduced brain Abeta amyloidosis compared to vehicle-treated animals.
62 KO mice produced normal levels of endogenous Abeta and exhibited normal electrophysiological response
63 croscopy we found that the co-aggregation of Abeta and ferritin resulted in the conversion of ferriti
65 independent of its ability to interact with Abeta and form heterocomplexes; suggesting mediation by
67 ith or without antivirals, were assessed for Abeta and p-tau expression over 7 days postinfection.
69 unction, it has been typically presumed that Abeta and tau act independently and in the absence of sp
71 a herein support a synergistic role for both Abeta and tau in driving neuronal dysfunction seen in AD
72 is specific for AD, correlates with cerebral Abeta and tau pathology, and predicts future cognitive d
73 review recent data regarding biomarkers for Abeta and tau pathology, neurodegeneration, synaptic dys
75 ur data suggest that therapies downstream of Abeta and tau together are more suitable to combat AD th
76 ate the metabolism of ApoE and beta-amyloid (Abeta) and are potential therapeutic targets for Alzheim
77 of the AD-associated proteins beta-amyloid (Abeta) and hyper-phosphorylated tau (p-tau) in Vero and
78 erized by amyloid plaques with amyloid beta (Abeta) and neurofibrillary tangles with tau accumulation
82 d clearance of CNS waste products, including Abeta, and for understanding how neuronal activity can m
83 understanding how melatonin protects against Abeta, and that choice of chain perdeuteration is an imp
84 Lesion load correlated with lower Aalpha-, Abeta-, and Adelta-fiber but not with C-fiber function i
86 of Alzheimer's disease pathogenesis in which Abeta appears early, followed by deposition of abnormal
88 ccumulated that implicates the N-terminus of Abeta as a region that may initiate the formation of dam
89 mplicating the intraneuronal accumulation of Abeta as a significant immunological component in the AD
92 ing fragments that dramatically improves the Abeta-binding affinity and lipophilicity for favorable b
93 cting fragments further improves the in vivo Abeta-binding specificity and brain uptake of the corres
94 deltaC reduces the later-stage extracellular Abeta burden and cognitive impairment, suggesting that p
97 identified an inflammatory profile unique to Abeta-burdened neurons, since neighboring glial cells di
98 o recordings revealed a strong role for hAPP/Abeta, but not tau, in the emergence of EC neuronal hype
99 nally, this segment also inhibits seeding of Abeta catalyzed by Abeta fibrils extracted from the brai
100 rden of tau (Braak score, P = 1.0 x 10(-5)), Abeta (CERAD score, P = 1.8 x 10(-5)), and cognitive dia
103 this issue of the JCI, Roy et al. show that Abeta complexed with nucleic acids triggers an antiviral
104 g with 5xFAD mouse analysis, we determine 15 Abeta-correlated proteins (e.g., MDK, NTN1, SMOC1, SLIT2
105 portions of Abeta-preventing (Abeta1-19) and Abeta-degradation products (Abeta1-20 and Abeta1-34).
106 d inflammation as well as enhanced the brain Abeta deposition and cognitive impairment in Tg-SwDI mic
107 the PFC region is selectively susceptible to Abeta deposition and less responsive to the attenuating
109 eir ability to neutralize Abeta seeds before Abeta deposition becomes detectable in Abeta precursor p
110 , M1 and SS2 regions plateau with respect to Abeta deposition by 12 months of age and are susceptible
111 ry to expectation, the LLD group showed less Abeta deposition than the ND group and Abeta deposition
112 less Abeta deposition than the ND group and Abeta deposition was not associated with depression hist
113 ose relationship between vascular and plaque Abeta deposition, several factors favour one or the othe
114 l amyloid angiopathy (CAA) and beta-amyloid (Abeta) deposition in the brain parenchyma are hallmarks
116 myloid angiopathy (CAA), where beta-amyloid (Abeta) deposits around cerebral blood vessels, is a majo
117 re affected by the presence of beta-Amyloid (Abeta) deposits, hallmark lesions of Alzheimer's disease
118 a mutation to further stabilize oligomers of Abeta-derived peptides that contain more of the native s
119 reclinical and clinical studies suggest that Abeta drives neurite and synapse degeneration through an
121 Striatal lesion core and globus pallidus of Abeta + ET1 rats showed extensive degeneration of neuron
124 eta fibril induced by EGCG and inhibition of Abeta fibril and oligomer formation, as manifested by th
125 nsor data are consistent with degradation of Abeta fibril induced by EGCG and inhibition of Abeta fib
126 In this study, we develop a minimal model of Abeta fibrillization to investigate the onset of AD over
127 in short timescales, an understanding of how Abeta fibrillization usually starts to dominate at a lon
130 also inhibits seeding of Abeta catalyzed by Abeta fibrils extracted from the brain of an Alzheimer's
138 ind specifically to the N-terminal region of Abeta, forming a dynamic, partially compact complex.
139 receptor component 1 (Pgrmc1), while longer Abeta forms induce sleep through a pharmacologically tra
142 ease but plasma p-tau181 is increased if CSF Abeta has already changed prior to Abeta PET changes.
145 terise the different types and morphology of Abeta-hIAPP heterocomplexes and determine if formation o
146 ght into the potential pathogenic effects of Abeta-IAPP hetero-oligomerization and development of IAP
147 ostaining that parallels the accumulation of Abeta in 5xFAD mice was not affected by PD except for a
148 protecting against the pathologic actions of Abeta in AD.SIGNIFICANCE STATEMENT Elevated levels of be
149 show that statins are effective at reducing Abeta in human neurons from nondemented control subjects
150 beta-site cleaving enzyme (BACE1), APP, and Abeta in human primary astrocytes (HPAs) exposed to Tat.
154 E STATEMENT Elevated levels of beta-amyloid (Abeta) in the brain are thought to contribute to the cog
156 whether this phenomenon represents an early, Abeta-independent pathway that facilitates dementia path
160 In vitro, rhizolutin substantially decreased Abeta-induced apoptosis and inflammation in neuronal and
161 eviously demonstrated implicated in blocking Abeta-induced cytotoxicity in neuronal cell cultures.
163 that tau suppression did not protect against Abeta-induced damage of long-term synaptic plasticity an
165 of several transmembrane proteins, restored Abeta-induced impaired gap junction coupling between ast
166 to choroid plexus cell cultures restored the Abeta-induced impairments on autophagy flux and apoptosi
167 expression in these animals protects against Abeta-induced impairments without impacting normal physi
168 olecular factors that control sensitivity to Abeta-induced impairments, and suggest that inhibiting P
169 ME-1 and LCMT-1 in regulating sensitivity to Abeta-induced impairments, and suggest that inhibition o
170 , LCMT-1, altered the sensitivity of mice to Abeta-induced impairments, suggesting that PME-1 inhibit
173 o demonstrated that APN deficiency increased Abeta-induced microglia activation and neuroinflammatory
174 we cautiously conclude that ligand 1 reduces Abeta-induced mitochondrial and synaptic toxicities, and
175 he sensitizing nAChRs, linked to early-stage Abeta-induced neurotoxicity, which may represent novel t
176 These results unveil a novel mechanism of Abeta-induced synaptic dysfunction in AD patients, and i
177 acers between the Cu-chelating group and the Abeta-interacting fragments further improves the in vivo
178 proach uses a bifunctional chelator with two Abeta-interacting fragments that dramatically improves t
179 d, suggesting that the microglial packing of Abeta into dense plaque is an important neuroprotective
181 h the self-assembly of amyloid-beta peptide (Abeta) is a causative process in Alzheimer's disease, ha
184 h associated with a significant reduction in Abeta levels and deposition and tau phosphorylation.
190 hitecture of heteromerization between 4F and Abeta(M1-42) discovered in this study provides evidence
194 ew, the authors describe the determinants of Abeta metabolism, summarize the effects of Abeta on athe
195 nuclear receptors involved in beta-amyloid (Abeta) metabolism and progression of Alzheimer's disease
197 t links the microscopic metal-ion binding to Abeta monomers to its macroscopic impact on the peptide
198 of Abeta PET and TSPO PET in 4 investigated Abeta mouse models (APP/PS1: R = 0.593, P = 0.001; PS2AP
199 refore, we investigated Abeta asymmetries in Abeta mouse models examined by Abeta small-animal PET an
201 e brain in vivo and the inability to degrade Abeta oligomers due to a phagolysosome dysfunction.
202 key insight has been an increase in soluble Abeta oligomers in early AD that is causally linked to n
203 Genetic disruptions revealed that short Abeta oligomers induce acute wakefulness through Adrener
204 istent with a model in which the assembly of Abeta oligomers is driven by hydrogen bonding and hydrop
205 eta40 ratio and amount of soluble, fibrillar Abeta oligomers were elevated in Trem2-deficient brains.
206 insights into the structure and assembly of Abeta oligomers, our laboratory has previously designed
207 al. elucidate the first atomic structures of Abeta oligomers, which reveal how they form lipid-stabil
209 f Abeta metabolism, summarize the effects of Abeta on atherothrombosis and cardiac dysfunction, discu
211 amined the effect of increased beta-amyloid (Abeta) on Cx43 expression and function leading to neuron
212 mouse models diminishes ApoE expression and Abeta pathologies, whereas overexpression of C/EBPbeta a
215 ived ROS in mediating microglial response to Abeta peptide 1-42 (Abeta(42)) stimulation in vitro, in
216 y to divalent metal ions, binds to monomeric Abeta peptide and efficiently modulates Abeta fibrilliza
218 e the chemical components of cocoa hindering Abeta peptide on-pathway aggregation and toxicity in a h
219 of the molecular pathways for amyloid-beta (Abeta) peptide aggregation from monomers into amyloid fi
220 l form of CAA in which mutations within the (Abeta) peptide cause an increase in vascular deposits.
221 rsor protein (APP) to form the amyloid beta (Abeta) peptide is related to the pathogenesis of Alzheim
223 this method in the case of the amyloid beta (Abeta) peptide, whose oligomers are associated with Alzh
224 could be an initial source of amyloid beta (Abeta) peptide-containing amyloid plaque development.
227 cessing, resulting in increased secretion of Abeta peptides and an increased Abeta38 to Abeta40 and A
228 s, for example post-translationally modified Abeta peptides with a pyroglutamate at the N-terminus (p
229 plaques composed of fibrillar amyloid beta (Abeta) peptides and intracellular neurofibrillary tangle
230 ofibrillary tangles, formed by amyloid beta (Abeta) peptides and phosphor-tau, respectively, in the c
231 of amyloid plaques composed of amyloid beta (Abeta) peptides and the cerebrospinal fluid concentratio
232 Preventing aggregation of amyloid beta (Abeta) peptides is a promising strategy for the treatmen
236 was a significant correlation between AIs of Abeta PET and TSPO PET in 4 investigated Abeta mouse mod
238 lassified as AD dementia but having negative Abeta PET scans show little increase but plasma p-tau181
242 g studies in patients with AD, indicate that Abeta plaque deposition precedes cortical tau pathology.
244 aspects that contribute to the formation of Abeta plaques are well addressed at the intra- and inter
246 resent with both extracellular amyloid-beta (Abeta) plaques and intracellular tau-containing neurofib
247 terized by the accumulation of amyloid-beta (Abeta) plaques and tau neurofibrillary tangles in the br
248 body-based removal of cerebral amyloid beta (Abeta) plaques may possibly clear tau tangles and modest
249 of brain metabolic wastes and amyloid-beta (Abeta) plaques, perivascular reactive astrogliosis, and
252 n-3-gallate (EGCG), found in green tea, with Abeta polypeptides, using a combination of in vitro immu
255 significantly predicted progression time to Abeta positivity (ADNI memory factor composite was trend
257 of AD pathogenesis has been that changes in Abeta precipitate the disease process and initiate a del
259 1 organoids secrete increased proportions of Abeta-preventing (Abeta1-19) and Abeta-degradation produ
263 re attractive antibody targets, due to pGlu3-Abeta's neo-epitope character and its propensity to form
264 investigated the effects of mutations on the Abeta secretome in human neurons generated in 2D and 3D.
265 s that therapeutically targetable pathogenic Abeta seeds already exist during the lag phase of protei
266 s antibodies for their ability to neutralize Abeta seeds before Abeta deposition becomes detectable i
268 symmetries in Abeta mouse models examined by Abeta small-animal PET and tested if such asymmetries ha
269 an Abeta has higher propensity to form toxic Abeta species, which are considered the main pathogenic
272 eta (1-30) peptide recapitulates full-length Abeta stereoselective cellular uptake, allowing us to de
273 cal responses to picomolar concentrations of Abeta, suggesting that reduced PME-1 expression in these
275 preclinical studies, we describe ADx-001, an Abeta-targeted liposomal macrocyclic gadolinium (Gd) ima
276 mer's disease pathogenesis, but longitudinal Abeta, tau, and neurodegeneration (A/T/N) measurements i
278 herefore identify a specific sequence within Abeta that is responsible for the recognition of the pep
279 thogenic entity in AD, as compared to rodent Abeta, the rat Amyloid Precursor Protein (App) gene was
283 rmone that has been shown to protect against Abeta toxicity in cellular and animal studies, but the m
285 oconstrictive endothelin-1 (ET-1) along with Abeta toxicity on CNS pathogenesis; driven by the anatom
286 omical units in the brain after ischemia and Abeta toxicity will help in the design of effective and
288 ified apparent changes in gene expression on Abeta treatment in the presence of the sensitizing nAChR
291 SORL1 and TREM2 mutations also impaired hMGL Abeta uptake in an APOE-dependent manner in vitro and at
292 POE-dependent manner in vitro and attenuated Abeta uptake/clearance in mouse AD brain xenotransplants
294 To better mimic oligomers of full length Abeta, we use an orthogonal protecting group strategy du
295 al fluid phosphorylated tau and subthreshold Abeta were associated with increased odds of progression
296 increasing levels of soluble and oligomeric Abeta, which are known to be the most toxic amyloid spec
297 d from the central and C-terminal regions of Abeta, which bear "tails" derived from the N-terminus of
298 he recovery of the amide-I band of monomeric Abeta, which is red-shifted by 26 cm(-1) when compared t
300 rease the interaction between fibrinogen and Abeta, which might be central to cerebrovascular patholo