We investigated the impacts of sarA and agr on fnbA expression and fibronectin-binding capacity in Staphylococcus aureus in vitro and in experimental endocarditis. Although sarA up-regulated and agr down-regulated both fnbA expression and fibronectin binding in vitro and in vivo, fnbA expression was positively regulated in the absence of both global regulators. Thus, additional regulatory loci contribute to fnbA regulation and fibronectin-binding capacities in S. aureus.
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http://dx.doi.org/10.1128/IAI.72.3.1832-1836.2004 | DOI Listing |
Foodborne Pathog Dis
October 2024
Hospital of Traditional Chinese Medicine, Yinchuan, China.
() is among the major skin infection-causing pathogens in animals and humans. Its ability to form biofilms has become a foremost cause of bacterial infections and the extensive spread of drug resistance, which poses a great difficulty in clinical treatment. Glabridin (Glb), an extract of licorice with antibacterial and anti-infective properties, has a partially understood biofilm-inhibitory mechanism.
View Article and Find Full Text PDFArch Microbiol
October 2024
Department of Biotechnology, Faculty of Science and Humanities, SRM Institute of Science and Technology, Kattankulathur, Chengalpattu District, Chennai, Tamil Nadu, 603203, India.
Heliyon
August 2024
Department of Biology, Roudehen Branch, Islamic Azad University, Roudehen, Iran.
Background: One of the targeted drug delivery systems is the use of nanocarriers, and one of these drug delivery systems is niosome. Niosome have a nano-vesicular structure and are composed of non-ionic surfactants. Objective: In this study, various niosome-encapsulated meropenem formulations were prepared.
View Article and Find Full Text PDFEcotoxicol Environ Saf
September 2024
School of Life Sciences, Anhui Agricultural University, Hefei, Anhui 230036, China. Electronic address:
The effect and underlying mechanism of tetrabromobisphenol A (TBBPA), a plastic additive, on biofilm formation of methicillin-resistant Staphylococcus aureus (MRSA USA300) remain unknown. This study first investigated the impact of different concentrations of TBBPA on the growth and biofilm formation of USA300. The results indicated that a low concentration (0.
View Article and Find Full Text PDFJ Appl Microbiol
August 2024
Department of Pathobiology, Faculty of Veterinary Science, Bu-Ali Sina University, Hamadan 6517658978, Iran.
Aims: This study aimed to investigate the effect of Oliveria decumbens essential oil (Od-EO) on the phenotypic properties and gene expression of Staphylococcus aureus biofilm on commonly used food contact surfaces.
Methods And Results: The minimum inhibitory concentration and minimum bactericidal concentration of Od-EO on S. aureus ATCC25923 were determined to be 0.
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