98%
921
2 minutes
20
Alzheimer's disease (AD) has become a great concern for society in general and clinicians specifically because of its high morbidity, relative lack of awareness of its characteristics, and low diagnosis and treatment rates. Worldwide, there is a lack of effective treatments for slowing the progression of AD in clinical practice. Thus, the management of patients in the preclinical phase of AD (PPAD) has been identified to be highly important for addressing this concern. PPAD is considered a preclinical manifestation of the early stages of AD and includes subjective cognitive decline (SCD) and mild cognitive impairment (MCI). Developments in magnetic resonance imaging (MRI) technology have led to its demonstration of great potential in the early identification and progression monitoring of PPAD. Thus, in this review, we summarized the concepts, principles and applications of structural and diffusion MRI in the identification of PPAD to provide potential imaging markers that can be used by clinicians in clinical practice.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC12411734 | PMC |
http://dx.doi.org/10.3389/fnins.2025.1596459 | DOI Listing |
Curr Opin Microbiol
September 2025
Cryptosporidiosis Laboratory, The Francis Crick Institute, London, United Kingdom. Electronic address:
The movement of molecules across the membranous barriers of a cell is fundamental to cellular homeostasis in every living organism. This vital process is facilitated through a mechanistically diverse class of proteins, collectively known as membrane transporters. Among these are so-called carrier proteins that can function in passive and active transport mechanisms.
View Article and Find Full Text PDFInorg Chem
September 2025
Laboratoire de Chimie Physique Matière et Rayonnement (LCPMR), CNRS UMR 7614, Sorbonne Université (SU), 4 place Jussieu, Paris 75005, France.
The one-photon KV X-ray photoelectron spectra of Na and its hydrated clusters [Na(HO)] ( = 1-6) are dominated by the unusual 1s → 1s3s transition. KV spectroscopy also reveals a pronounced redistribution of the 1s → 1s3p transition cross sections, directly correlated with hydration number and molecular arrangement. Its intrinsic two-step nature, involving simultaneous core ionization and core excitation, enables detailed investigation of solvation-induced electronic structure changes, including dipole-forbidden excitations, core-valence charge transfer, and subtle 1s → V energy shifts.
View Article and Find Full Text PDFChem Biodivers
September 2025
Department of Clinical Pharmacy, College of Pharmacy, University of Sulaimani, Sulaimani, Iraq.
The global rise in antibiotic resistance demands the urgent development of new antibacterial agents. This study investigated the antibacterial potential of four synthesized methoxy and thiophene chalcone derivatives (designated 3a, 4a, 3b, and 4b) against clinically relevant bacterial pathogens. These compounds were prepared through Claisen-Schmidt condensation, while their chemical structures were verified through applying Fourier-transform infrared, mass spectrometry, H nuclear magnetic resonance (NMR), and C NMR.
View Article and Find Full Text PDFJ Am Chem Soc
September 2025
Department of Chemistry, Boston University, Boston, Massachusetts 02215, United States.
Two-dimensional (2D) materials offer a valuable platform for manipulating and studying chemical reactions at the atomic level, owing to the ease of controlling their microscopic structure at the nanometer scale. While extensive research has been conducted on the structure-dependent chemical activity of 2D materials, the influence of structural transformation during the reaction has remained largely unexplored. In this work, we report the layer-dependent chemical reactivity of MoS during a nitridation atomic substitution reaction and attribute it to the rearrangement of Mo atoms.
View Article and Find Full Text PDFNanomicro Lett
September 2025
Department of Mechanical, Aerospace & Biomedical Engineering, University of Tennessee, Knoxville, Knoxville, TN, 37996, USA.
3D printing, as a versatile additive manufacturing technique, offers high design flexibility, rapid prototyping, minimal material waste, and the capability to fabricate complex, customized geometries. These attributes make it particularly well-suited for low-temperature hydrogen electrochemical conversion devices-specifically, proton exchange membrane fuel cells, proton exchange membrane electrolyzer cells, anion exchange membrane electrolyzer cells, and alkaline electrolyzers-which demand finely structured components such as catalyst layers, gas diffusion layers, electrodes, porous transport layers, and bipolar plates. This review provides a focused and critical summary of the current progress in applying 3D printing technologies to these key components.
View Article and Find Full Text PDF