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Staphylococcus aureus vesicles impair cutaneous wound healing through p38 MAPK-MerTK cleavage-mediated inhibition of macrophage efferocytosis.
Cell Commun Signal
January 2025
School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China.
Background: Staphylococcus aureus, a known contributor to non-healing wounds, releases vesicles (SAVs) that influence the delicate balance of host-pathogen interactions. Efferocytosis, a process by which macrophages clear apoptotic cells, plays a key role in successful wound healing. However, the precise impact of SAVs on wound repair and efferocytosis remains unknown.
View Article and Find Full Text PDFHarnessing CRISPR interference to resensitize laboratory strains and clinical isolates to last resort antibiotics.
Sci Rep
January 2025
Department of Electrical, Computer and Biomedical Engineering, University of Pavia, Via Ferrata 5, Pavia, Italy.
The global race against antimicrobial resistance requires novel antimicrobials that are not only effective in killing specific bacteria, but also minimize the emergence of new resistances. Recently, CRISPR/Cas-based antimicrobials were proposed to address killing specificity with encouraging results. However, the emergence of target sequence mutations triggered by Cas-cleavage was identified as an escape strategy, posing the risk of generating new antibiotic-resistance gene (ARG) variants.
View Article and Find Full Text PDFSynthesis and Properties of Donor-Acceptor-Type Cyclobisbiphenylenecarbonyls.
Chemistry
December 2024
Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan.
The scalable synthesis of figure-eight π-systems is challenging for the conventional bottom-up approach. We have recently reported that the oxidative inner-bond cleavage of commercially available dibenzo[g,p]chrysene efficiently furnishes a figure-eight π-acceptor, cyclobisbiphenylenecarbonyl (CBBC), in large quantity. Furthermore, its donor-acceptor-type derivative with four N-carbazolyl substituents at the meta-positions of the carbonyl groups exhibited thermally activated delayed fluorescence (TADF) and circularly polarized luminescence (CPL) with a high |g| value of 1.
View Article and Find Full Text PDFAnesthetic management using desflurane and nitrous oxide in a child with non-ketotic hyperglycinemia: a case report.
JA Clin Rep
December 2024
Department of Anesthesiology, Niigata University Medical and Dental Hospital, 1-754 Asahimachi-Dori, Chuo-Ku, Niigata, 951-8520, Japan.
Background: Non-ketotic hyperglycinemia (NKH) is a rare autosomal recessive disorder caused by defects in the glycine cleavage system, leading to elevated glycine levels in the central nervous system. NKH manifests in various forms, with the neonatal type being the most severe and often associated with high mortality and significant neurological impairment. This case report highlights the successful uses of desflurane and nitrous oxide for anesthetic management in a patient with NKH.
View Article and Find Full Text PDFModulating the Cell Death Immune Response for Electroporation Treatments.
Bioelectricity
December 2024
Bioelectromechanical Systems Laboratory, Virginia Tech-Wake Forest School of Biomedical Engineering, Blacksburg, Virginia, USA.
Irreversible electroporation (IRE) is a minimally invasive ablation technique that compromises integrity of the cell membrane through the application of short duration, high voltage electric pulses to induce cell death. Adverse effects of IRE such as muscle contractions are reduced with higher frequency biphasic pulsing, commonly known as high-frequency irreversible electroporation (H-FIRE). IRE and H-FIRE treatments have shown to increase immune activation through the induction of both immediate and delayed cell death, indicated by the release of damage-associated molecular pathways, antigens, and proteins.
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