Y. Masuda

Publications133
h-index21
Citations1,827
Highly Influential Citations39
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Site-specific Inhibitory Mechanism for Amyloid β42 Aggregation by Catechol-type Flavonoids Targeting the Lys Residues*
Background: The inhibitory mechanism of Aβ42 aggregation by flavonoid is fully unknown. Results: The oxidant enhanced the inhibitory activity of (+)-taxifolin against Aβ42 aggregation by forming… Expand
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Solid-state NMR analysis of interaction sites of curcumin and 42-residue amyloid β-protein fibrils.
Aggregation of 42-residue amyloid β-protein (Aβ42) plays a pivotal role in the etiology of Alzheimer's disease (AD). Curcumin, the yellow pigment in the rhizome of turmeric, attracts considerable… Expand
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Analysis of the Secondary Structure of β-Amyloid (Aβ42) Fibrils by Systematic Proline Replacement*
Amyloid fibrils in Alzheimer's disease mainly consist of 40- and 42-mer β-amyloid peptides (Aβ40 and Aβ42) that exhibit aggregative ability and neurotoxicity. Although the aggregates of Aβ peptides… Expand
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Studies on 3-substituted 1,2-benzisoxazole derivatives. 6. Syntheses of 3-(sulfamoylmethyl)-1,2-benzisoxazole derivatives and their anticonvulsant activities.
Several 3-(sulfamoylmethyl)-1,2-benzisoxazole derivatives were synthesized from 3-(bromomethyl)-1,2-benzisoxazole by the reaction with sodium bisulfite followed by chlorination and amination. Some of… Expand
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Identification of Physiological and Toxic Conformations in Aβ42 Aggregates
Aggregation of the 42‐residue amyloid β‐protein (Aβ42) plays a crucial role in the pathogenesis of Alzheimer's disease (AD). Despite numerous structural studies on Aβ aggregates, the relationship… Expand
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Analysis of the secondary structure of beta-amyloid (Abeta42) fibrils by systematic proline replacement.
Amyloid fibrils in Alzheimer's disease mainly consist of 40- and 42-mer beta-amyloid peptides (Abeta40 and Abeta42) that exhibit aggregative ability and neurotoxicity. Although the aggregates of… Expand
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RECG Maintains Plastid and Mitochondrial Genome Stability by Suppressing Extensive Recombination between Short Dispersed Repeats
Maintenance of plastid and mitochondrial genome stability is crucial for photosynthesis and respiration, respectively. Recently, we have reported that RECA1 maintains mitochondrial genome stability… Expand
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Total synthesis and biological evaluation of PF1171A, C, F, and G, cyclic hexapeptides with insecticidal activity.
The total synthesis of the cyclic hexapeptides PF1171A, C, F, and G has been achieved by solid-phase synthesis of a linear precursor and solution-phase macrolactamization. The synthesis includes a… Expand
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Effect of solvent on proton location and dynamic behavior in short intramolecular hydrogen bonds studied by molecular dynamics simulations and NMR experiments
Abstract Hydrogen phthalate anion has a short strong O–H–O hydrogen bond (H-bond). According to previous experimental studies, the H-bond is asymmetric and two tautomers are interconverted in aqueous… Expand
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Structure of beta-amyloid fibrils and its relevance to their neurotoxicity: implications for the pathogenesis of Alzheimer's disease.
Alzheimer's disease and cerebral amyloid angiopathy are characterized by the deposition of beta-amyloid fibrils consisting of 40- and 42-mer peptides (A beta 40 and A beta 42). Since the aggregation… Expand
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