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Less Is More: Donor Engineering of a Stable Molecular Dye for Bioimaging in the NIR-IIb Window.
J Med Chem
January 2025
Center for Advanced Materials Research & Faculty of Arts and Sciences, Beijing Normal University, Zhuhai 519087, China.
Fluorescence molecular imaging aims to enhance clarity in the region of interest, particularly in the near-infrared IIb window (NIR-IIb, 1500-1700 nm). To achieve this, we developed a novel small-molecule dye, named , based on classic cyanine dyes (heptamethine or pentamethine is essential for wavelengths beyond 1000 nm). By reducing excessive polymethine to a single methine and disrupting symmetry to form an asymmetric donor-π-acceptor (D-π-A) architecture, we enhanced the donor's electron-donating capability, yielding emission at 1088 nm.
View Article and Find Full Text PDFCharacterizing Oxidative Stress induced by Aβ Oligomers and the Protective Role of Carnosine in Primary Mixed Glia Cultures.
Free Radic Biol Med
January 2025
Department of Drug and Health Sciences, University of Catania, Catania, Italy; Unit of Neuropharmacology and Translational Neurosciences, Oasi Research Institute-IRCCS, Troina, Italy. Electronic address:
Alzheimer's disease (AD) is a neurodegenerative disorder characterized by cognitive decline and memory loss. A critical aspect of AD pathology is represented by oxidative stress, which significantly contributes to neuronal damage and death. Microglia and astrocytes, the primary glial cells in the brain, are crucial for managing oxidative stress and supporting neuronal function.
View Article and Find Full Text PDFIncidence of bleeding during and after two non-surgical periodontal therapy schemes in patients with recent acute coronary syndrome on dual antiplatelet therapy: A pilot study.
J Clin Exp Dent
December 2024
Unit of Oral Basic Investigation, UIBO School of Dentistry, Universidad El Bosque, Bogota, Colombia.
Background: This study aimed to compare the incidence of bleeding using two periodontal treatment protocols in patients with recent Acute Coronary Syndrome (ACS).
Material And Methods: This is an interim analysis of a double-blind controlled clinical trial evaluating two periodontal treatment schemes in patients with recent ACS treated with different dual antiplatelet regimens: Clopidogrel+ASA, Prasugrel+ASA and Ticagrelor+ASA. After randomisation six patients (22 quadrants) were treated with Scheme A (scaling and root planning-SRP) and six patients (21 quadrants) with Scheme B (ultrasonic scaling-US).
UV-irradiated BSA: The details of aggregation kinetics and structural rearrangements.
Int J Biol Macromol
January 2025
Bach Institute of Biochemistry, Federal Research Centre "Fundamentals of Biotechnology" of the Russian Academy of Sciences, Leninsky pr. 33, Moscow 119071, Russia. Electronic address:
UV-irradiation is a stress factor for proteins, leading to disruption of their native structure. Test systems based on UV-irradiated proteins are relevant for researchers, as they allow working directly with damaged protein molecules, which can be important when studying the properties and mechanisms of action of various antiaggregation agents. The study of UV-irradiated proteins can also have applied significance, including medical.
View Article and Find Full Text PDFAims: The Peri-Implant and PeriProsthetic Survival AnalysiS (PIPPAS) study aimed to investigate the risk factors for one-year mortality of femoral peri-implant fractures (FPIFs).
Methods: This prospective, multicentre, observational study involved 440 FPIF patients with a minimum one-year follow-up. Data on demographics, clinical features, fracture characteristics, management, and mortality rates were collected and analyzed using both univariate and multivariate analyses.
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