Photobacterium damsela (P damsela) is a common marine bacterium. Rare reports of P damsela causing septicemia and wound infection have been described in children. We report a case of Photobacterium damsela isolated from a wound culture taken from a 14-year-old male injured after a minor trauma while surfing. We alert physicians to this infection and the importance of early diagnosis and appropriate antimicrobial therapy for wound infection following seawater injury.
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http://dx.doi.org/10.1097/SMJ.0b013e31819b9491 | DOI Listing |
Antibiotics (Basel)
November 2024
Department of Food Science, National Taiwan Ocean University, No. 2, Pei-Ning Road, Keelung 202, Taiwan.
Essential oils (EOs), regarded as secondary metabolites from plants, possess effective antibacterial properties. This study investigates the antibacterial efficacy of seven citrus EOs against six spoilage bacteria: , , , , , and . The antibacterial activity of these EOs was evaluated using solid- and vapor-phase applications.
View Article and Find Full Text PDFMar Drugs
December 2024
Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, Yantai 264117, China.
Two new cembrane-derived tricyclic diterpenes belonging to the sarcophytin family, namely 4-hydroxy-chatancin () and sarcotoroid (), together with two known related ones ( and ), were isolated from the soft coral collected off Ximao Island in the South China Sea. The structures of the new compounds were elucidated by extensive spectroscopic analysis, a quantum mechanical nuclear magnetic resonance (QM-NMR) method, a time-dependent density functional theory electronic circular dichroism (TDDFT-ECD) calculation, X-ray diffraction analysis, and comparison with the reported data in the literature. A plausible biosynthetic pathway of compounds - was proposed, involving undergoing a transannular Diels-Alder cycloaddition.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
December 2024
Key Laboratory of Marine Drugs of Ministry of Education, Shandong Key Laboratory of Glycoscience and Glycotherapeutics, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China.
Owing to the inaccessibility of β1-4-N-acetylgalactosaminyltransferase for direct glycan chain elongation, the enzymatic synthesis of 0-series gangliosides with extended backbones has not been explored. In this study, sialic acid was enzymatically introduced as an auxiliary group to overcome the limitation of substrate specificity of Campylobacter jejuni β1-4-N-acetylgalactosaminyltransferase (CjCgtA) to achieve the synthesis of desired extended 0-series ganglioside core structures, and the sialic acid auxiliary group could be removed by sialidase at appropriate stages. A bacterial α2-6-sialyltransferase from Photobacterium damselae (Pd2,6ST) exhibited unexpected acceptor substrate specificity for 0-series ganglioside core structures, providing ready access to complex gangliosides bearing the sialyl N-acetylgalactosamine unit.
View Article and Find Full Text PDFMicrob Pathog
December 2024
Department of Microbiology and Parasitology, Aquatic One Health Research Center (ARCUS), Universidade de Santiago de Compostela, Santiago de Compostela, 15782, Spain. Electronic address:
Fish Physiol Biochem
February 2025
Departamento de Biología, Facultad de Ciencias del Mar y Ambientales, Instituto Universitario de Investigación Marina (INMAR), CEIMAR-Universidad de Cádiz, Cádiz, Spain.
The energetic costs of being in stressful conditions require the involvement of hormones associated with metabolic support, which may also influence immune function. The present work aimed to explore the links between tryptophan nutrition and metabolic responses in European seabass (Dicentrarchus labrax) held under space-confined conditions, and subsequently submitted to an immune challenge. To study that, two dietary treatments were evaluated, i.
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