Results 151 to 160 of about 1,107,155 (284)

Multimodal Characterization of Glymphatic‐Related Magnetic Resonance Imaging Markers in Huntington's Disease: A Multi‐Cohort Retrospective Study

Annals of Neurology, EarlyView.
Objective To characterize magnetic resonance imaging (MRI)‐based glymphatic surrogates in Huntington's disease (HD) using MRI measures of perivascular diffusivity and structural perivascular alterations across multiple large cohorts. Methods We analyzed 2,731 MRI sessions from 880 participants across 3 large retrospective HD cohorts.
Alexia Solomon, Zexi Wang, Francesco Sanvito, Zheng Zhou, Adys Mendizabal, Jingwen Yao   +5 more
wiley   +1 more source

Distinct Molten‐Globule Conformations in an Interacting Protein Domain Resolved by 19F NMR of Fluoroproline Residues

Angewandte Chemie, EarlyView.
Modifying the conformational ensemble of “molten‐globule” protein by the site‐specific incorporation of stereoisomeric 4‐fluoroproline residues modulated its binding affinity and aggregation behavior. 19F NMR spectroscopy enabled the detection of key interactions responsible for structural and dynamic changes. ABSTRACT Recently, the application of deep
Abir Ben Bouzayene, Mariam Sai, Alexis Jouin, Yves Nominé, Vladimir Torbeev, Bruno Kieffer   +5 more
wiley   +2 more sources

Biophysical Characterization and Proteomic Analysis of Small Extracellular Vesicles Derived From Different Neural Cell Lines

Advanced NanoBiomed Research, EarlyView.
This study systematically compares small extracellular vesicles (sEVs) derived from four neural cell lines, revealing how cellular origin shapes vesicle biophysical properties and proteomic cargo. Distinct, lineage‐specific signatures linked to neuronal, astrocytic, and microglial functions are identified, highlighting the importance of cell source ...
Muhammad Waqas Salim, Wei Zhang, Lyndsey E. Collins‐Praino, Andrew Care, Yuling Wang   +4 more
wiley   +1 more source

Beyond Simple Mimicry: Next‐Generation Geometric Architectures and Future Paradigms in Small‐Molecule and Macrocyclic Peptidomimetics

Angewandte Chemie, EarlyView.
Peptide‐to‐Small Molecule Paradigm: Peptidomimetics have evolved from simple mimicry toward drug‐like scaffolds supported by increasing clinical successes. This Perspective highlights the geometric design principles—linear repetition, convergent fusion, and cyclization—defining the next‐generation peptidomimetic architectures capable of targeting ...
Jesang Lee, Sumin Son, Jeong Yeon Yoo, Ji Hyae Lee, Meehyun Chun, Seung Bum Park   +5 more
wiley   +2 more sources

Functional Polymer‐Engineered Magnetic Nanoparticles as Dual‐Modal Theragnostic Probes for Early Alzheimer's Disease Detection and Therapy

Advanced NanoBiomed Research, EarlyView.
The nanoparticle consists of a 3 nm iron oxide core functionalized with an amphiphilic polymer coating containing Aβ‐targeting DSA moieties and biocompatible PEG chains. This design supports measurable transport in a BBB‐related model and specific interaction with Aβ species, while providing MRI contrast enhancement for diagnosis and therapeutic ...
Ao Shen, Liwen Zhang, Helen Forgham, Jiayuan Zhu, Xumin Huang, Changkui Fu, Ibrahim Javed, Thomas P. Davis, Ruirui Qiao   +8 more
wiley   +1 more source

Record Dissymmetry in Vibrational Optical Activity: Combining Vibronic Coupling and Aggregation in Cobalt(II) Camphorate Complexes

Angewandte Chemie, EarlyView.
The cobalt(II) bis(trifluoroacetylcamphorate) scaffold exhibits versatile coordination chemistry with solvent‐driven ligand exchange and geometrical rearrangements, associated with unique chiroptical properties. Microcrystalline suspension of [Co(tfc)2(CH3CN)2] revealed the largest VCD dissymmetry factor ever reported (g ≈ 0.2 at 1600 cm−1), arising ...
Gianmarco Papi, Massimo Guelfi, Stefano Zacchini, Fabio Marchetti, Gennaro Pescitelli   +4 more
wiley   +2 more sources

Metal Oxides Catalyze Formation of Dehydroamino Acids by Phosphate β‐Elimination Under Physiological Conditions

Angewandte Chemie, EarlyView.
Dehydroamino acids (DHAA) are atypical electrophilic sites that lead to crosslinked proteins in Alzheimer's disease (AD) brains. No catalyst for their formation has been known in humans. We report that metal oxides catalyze β‐elimination of phosphoserine and phosphothreonine in model peptides at pH 7.5°C and 37°C, yielding DHAAs.
Samuel W. Markovich, Brian L. Frey, Mark Scalf, Lloyd M. Smith   +3 more
wiley   +2 more sources

Beta Amyloid Measurement [PDF]

, 2020
openaire   +1 more source

Regional growth rates of white matter hyperintensities are associated with beta-amyloid burden. [PDF]

Neurobiol Aging
Strain JF, Rahmani M, Phuah CL, Dierker D, Luo J, Owen C, Vlassenko AG, Jafri H, Bourgeat P, Fripp J, Jin L, Moulder K, Benzinger T, Xiong C, Lee JM, Weiner M, Masters CL, Morris JC, Womack K, Goyal MS, Alzheimer’s Disease Neuroimaging Initiative, AIBL research group, and OASIS3.   +22 more
europepmc   +1 more source

Beta-amyloid influences the content and trafficking of beta-amyloid precursor protein via Na,K-ATPase-Src kinase positive feedback loop. [PDF]

Front Pharmacol
Petrushanko IY, Lisitskii DR, Filonov FA, Leonova OG, Mitkevich VA, Strelkova MA, Makarov AA.   +6 more
europepmc   +1 more source