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sp. nov. and sp. nov., two bacteria isolated from marine sediment in the East China Sea.
Int J Syst Evol Microbiol
January 2025
Li Dak Sum Yip Yio Chin Kenneth Li Marine Biopharmaceutical Research Center, Ningbo University, Ningbo 315800, PR China.
Two Gram-stain-negative, curved-rod-shaped, non-motile and aerobic bacteria W6 and I13 were isolated from marine sediment samples collected from Meishan Island located in the East China Sea. Catalase and oxidase activities and hydrolysis of Tween 40, 60 and 80 were positive for both strains, while nitrate reduction, indole production, methyl red reaction and HS production were negative. Phylogenetic analyses based on 16S rRNA and genome sequences revealed that strains W6 and I13 formed distinct phylogenetic lineages within the genera and , respectively.
View Article and Find Full Text PDFidentification through bronchoscope in intensive care unit - a retrospective, databased cohort study.
Front Cell Infect Microbiol
January 2025
Department of Thoracic Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan.
Introduction: Invasive pulmonary aspergillosis (IPA) increases the risk of mortality of critically ill patients. Diagnostic criteria specifically targeting patients in intensive care units(ICUs) have been developed to improve diagnostic sensitivity. This study investigated health outcomes among patients in ICUs with Aspergillus isolates identified using bronchoscopy.
View Article and Find Full Text PDFCharacterization of a primary cellular airway model for inhalative drug delivery in comparison with the established permanent cell lines CaLu3 and RPMI 2650.
In Vitro Model
December 2024
Institute of Applied Biotechnology, University of Applied Science Biberach, Hubertus-Liebrecht Strasse 35, 88400 Biberach, Germany.
Purpose: For optimization of respiratory drug delivery, the selection of suitable in vitro cell models plays an important role in predicting the efficacy and safety of (bio)pharmaceutics and pharmaceutical formulations. Therefore, an in-depth comparison of different primary and permanent in vitro cellular airway models was performed with a focus on selecting a suitable model for inhalative antibodies.
Methods: Primary cells isolated from the porcine trachea were compared with the established human cell lines CaLu3 and RPMI 2650.
MSC-derived exosome ameliorates pulmonary fibrosis by modulating NOD 1/NLRP3-mediated epithelial-mesenchymal transition and inflammation.
Heliyon
January 2025
Department of Cardiovascular Medicine, The Second Affiliated Hospital of University of South China, Key Laboratory of Heart Failure Prevention & Treatment of Hengyang, Clinical Medicine Research Center of Arteriosclerotic Disease of Hunan Province, Hengyang, Hunan, China.
Background: Pulmonary fibrosis (PF) is an irreversible and usually fatal lung disease. In recent years, the therapeutic role of exosomes derived from mesenchymal stem cells (MSC-exos) in anti-fibrotic treatment has received much attention. In this study, we aimed to determine the anti-fibrotic properties and related molecular mechanisms of MSC-exos in Bleomycin(BLM)-induced PF.
View Article and Find Full Text PDFCorrelation between rrs gene mutations and amikacin resistance in Mycobacterium abscessus: implications for fitness cost and clinical prevalence.
J Antimicrob Chemother
January 2025
Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui 230601, China.
Objectives: Amikacin is crucial for treating Mycobacterium abscessus (Mab) infections, with resistance primarily attributed to rrs gene mutations. The correlation between specific mutations and amikacin susceptibility, along with the associated fitness cost, requires further investigation.
Methods: We isolated spontaneous amikacin-resistant mutants in vitro and identified their mutation sites in the rrs gene via Sanger sequencing, which were then compared with existing reports.
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