In the view of developing a synthetic route for the controlled insertion of distinct organometallic moieties into peptide nucleic acid (PNA) oligomers, a proof-of-principle study of the chemoselective insertion of three different organometallics into a building block containing both a PNA backbone and an alkyne side-chain is presented in this study.
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http://dx.doi.org/10.1039/c003598j | DOI Listing |
PLoS One
January 2025
General Directorate of Infection Prevention & Control, Ministry of Health-Saudi Arabia, Riyadh, Saudi Arabia.
Background: Candida auris (C. auris) is an emerging fungus pathogen associated with nosocomial infections that is seen as a serious global health issue.
Aim: To describe the epidemiology and features of hospital-acquired Candida auris outbreaks in the Ministry of Health hospitals (MOH).
J Med Syst
January 2025
Department of Neurosurgery, University Medical Centre Utrecht, Utrecht, The Netherlands.
This study aimed to develop and validate a cost-effective, customizable patient-specific phantom for simulating external ventricular drain placement, combining image segmentation, 3-D printing and molding techniques. Two variations of the phantom were created based on patient MRI data, integrating a realistic skin layer with anatomical landmarks, a 3-D printed skull, an agarose polysaccharide gel brain, and a ventricular cavity. To validate the phantom, 15 neurosurgeons, residents, and physician assistants performed 30 EVD placements.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Rio de Janeiro, Brazil.
Background: The apolipoprotein ε4 (ApoE4) allele is a major risk factor for sporadic Alzheimer's disease (AD) and was shown to promote amyloid-β (Aβ) accumulation and mediate pathophysiological processes in AD. Although the molecular interaction between Aβ and ApoE is acknowledged, the precise nature of this interaction remains unclear. This study aims to explore the biophysical and biochemical nature of the interaction between Aβ and ApoE in the ε3 and ε4 isoforms.
View Article and Find Full Text PDFFront Fungal Biol
December 2024
Department of Biological Sciences, University of Notre Dame, Notre Dame, IN, United States.
The antimicrobial peptide (AMP) circularized bacteriocin enterocin AS-48 produced by sp. exhibits broad-spectrum antibacterial activity via dimer insertion into the plasma membrane to form membrane pore structures, compromising membrane integrity and leading to bactericidal activity. A specific alpha-helical region of enterocin AS-48 has been shown to be responsible for the membrane-penetrating activity of the peptide.
View Article and Find Full Text PDFCureus
December 2024
Department of Neurosurgery, University of Fukui, Fukui, JPN.
Background Prior to using the exoscope, we speculated that it represented an intermediate tool between a loupe and a microscope and had concerns about its visibility of deep, fine structures. Objective To evaluate the depths of meningioma for which the exoscope was suitable, and to clarify its disadvantages in meningioma resection. Methods Findings of consecutive meningioma surgeries using a 4K three-dimensional (3D) exoscope over a one-year period were evaluated for visibility of the surgical field, comfort of the surgeon's arm posture, the surgeon's head orientation, and perception of the image delay, accounting for the depth of the tumor.
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