Miniprep of low copy number and large plasmid was done from three subspecies of Bacillus thuringiensis. The plasmid was purified using PEG 6000 instead of phenol and chloroform. Experiments demonstrate that consequences from this protocol were stable, the quality and yield of plasmid DNA produced from it have met the standard for many molecular biology experiments.
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Front Microbiol
December 2024
College of Life Sciences, Zaozhuang University, Zaozhuang, China.
Introduction: The conjugative transfer of antibiotic resistance genes (ARGs) mediated by plasmids occurred in different intestinal segments of mice was explored.
Methods: The location of ARG donor bacteria and ARGs was investigated by qPCR, flow cytometry, and small animal imaging. The resistant microbiota was analyzed by gene amplification sequencing.
Microbiome
January 2025
National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, 102206, China.
Background: Antimicrobial resistance poses a significant threat to global health, with its spread intricately linked across human, animal, and environmental sectors. Revealing the antimicrobial resistance gene (ARG) flow among the One Health sectors is essential for better control of antimicrobial resistance.
Results: In this study, we investigated regional ARG transmission among humans, food, and the environment in Dengfeng, Henan Province, China by combining large-scale metagenomic sequencing with culturing of resistant bacterial isolates in 592 samples.
Hum Gene Ther
January 2025
School of Bioengineering, East China University of Science and Technology, Shanghai, China.
Adeno-associated virus (AAV)-associated gene therapy has been increasingly promising, in light of the drugs progressed to clinical trials or approved for medications internationally. Therefore, scalable and efficient production of recombinant AAV is pivotal for advancing gene therapy. Traditional methods, such as the triple-plasmid transfection of human embryonic kidney 293 cells in suspension culture, have been widely employed but often hampered by low unit yield.
View Article and Find Full Text PDFInfect Dis Ther
January 2025
Department of Epidemiology and Clinical Microbiology, National Medicines Institute, Chełmska 30/34, 00-725, Warsaw, Poland.
Introduction: Despite a scarcity of data, before 2022 Ukraine was already considered a high-prevalence country for carbapenemase-producing Enterobacterales (CPE), and the situation has dramatically worsened during the full-scale war with Russia. The aim of this study was to analyse CPEs isolated in Poland from victims of war in Ukraine.
Methods: The study included 65 CPE isolates from March 2022 till February 2023, recovered in 36 Polish medical centres from 57 patients arriving from Ukraine, differing largely by age and reason for hospitalisation.
Cytojournal
November 2024
Department of Hand and Foot Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Qingdao, China.
Objective: Rheumatoid arthritis (RA) is a disabling systemic autoimmune disease worldwide; however, its molecular pathway remains largely unknown. Thus, this study aimed to explore the effects of receptor-interacting serine/threonine kinase 2 (RIPK2) on RA progression and its underlying mechanism.
Material And Methods: RIPK2 expression was analyzed using real-time quantitative polymerase chain reaction, immunohistochemical staining, and Western blot (WB) analysis in RA synovial tissues or cells.
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