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Locally advanced nasopharyngeal follicular dendritic cell sarcoma misdiagnosed as meningioma.
Discov Oncol
January 2025
Pathology Department, Salah Azeiz Institute, 1006, Tunis, Tunisia.
Follicular dendritic cell sarcoma (FDCS) is a rare malignancy, often challenging to diagnose due to its nonspecific presentation and resemblance to other neoplasms. This case highlights a locally advanced nasopharyngeal FDCS initially misdiagnosed as a meningioma, underscoring the importance of differential diagnosis in unusual tumor presentations. A 77-year-old patient presented with nasal obstruction for 3 months.
View Article and Find Full Text PDFExploring the bonding in alkaline earth halides AeX (Ae = Be-Ba, X = F-I) from Fermi hole localization and QTAIM perspectives.
Phys Chem Chem Phys
January 2025
Grupo de Química Computacional y Teórica (QCT-USFQ), Departamento de Ingeniería Química, Universidad San Francisco de Quito, Diego de Robles y Vía Interoceánica, Quito 17-1200-841, Ecuador.
A theoretical description of various [AeX] (Ae = Be-Ba, X = F-I) systems, some of which have been reported in the literature to bear an unusual quadruple bond between the metal and the halogen, is provided based on both (i) the localization of the Fermi hole and (ii) the topological analysis of the one-electron density. Insights into the bond order of various [AeX] systems are inferred on the basis of the number of electrons localized in the bond basin, the topology of the Fermi hole information computed along the bond axis, and the delocalization index. The results suggest that the [AeX] molecules present a bond with attributes closer to a classical dative bond than to a multiple one, being characterized by large stabilization due to the electrostatic interaction between the polarized metal and the halogen anion.
View Article and Find Full Text PDFInteraction between bacterial adhesins leads to coaggregation by the oral bacteria and .
mBio
January 2025
Antimicrobial Resistance, Omics and Microbiota Group, Centre for Systems Health and Integrated Metabolic Research, Department of Biosciences, Nottingham Trent University, Nottingham, United Kingdom.
is an unusual diderm firmicute that plays a central role in the formation of dental biofilm formation through coaggregation with many other oral bacteria. However, the molecular interactions leading to oral biofilm formation are largely unknown. In a recent study (L.
View Article and Find Full Text PDFDynamic Kinetic Activation of Aziridines Enables Radical-Polar Crossover (4 + 3) Cycloaddition with 1,3-Dienes.
J Am Chem Soc
January 2025
State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China.
The cycloaddition of aziridines with unsaturated compounds is a valuable method for synthesizing nitrogen heterocycles. However, this process is predominantly substrate-controlled, posing significant challenges in regulating the regioselectivity of the C-N bond cleavage. In this study, we report a nickel-catalyzed dynamic kinetic activation strategy that enables catalyst-controlled activation of aziridines.
View Article and Find Full Text PDFInnovation and diversity in public health team engagement in local alcohol premises licensing: qualitative interview findings from the ExILEnS study.
Public Health Res (Southampt)
January 2025
Institute for Social Marketing and Health, University of Stirling, Stirling, Scotland, UK.
Background: Evidence suggests that controls on the physical and temporal availability of alcohol can reduce alcohol-related harms. Public health teams in England and Scotland have in recent years been given a statutory role in licensing systems through which premises are granted permits to sell alcohol. The Exploring the Impact of alcohol premises Licensing in England and Scotland study examined public health team efforts to engage in alcohol licensing from 2012 to 2019.
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