A TaqMan-minor groove binding assay designed around a nonsense mutation in the plcR gene was used to genotype Bacillus anthracis, B. cereus, and B. thuringiensis isolates. The assay differentiated B. anthracis from these genetic near-neighbors and determined that the nonsense mutation is ubiquitous across 89 globally and genetically diverse B. anthracis strains.
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http://dx.doi.org/10.1128/JCM.43.4.1995-1997.2005 | DOI Listing |
Foodborne Pathog Dis
October 2024
School of Chemical Engineering, Xiangtan University, Xiangtan, China.
This study aimed to investigate the influence of garlic metabolites on the quorum sensing (QS) of , a foodborne pathogen that controls its main virulence factor through QS. The QS signal receptor PlcR of was targeted by molecular docking with 82 garlic metabolites to identify the most potent QS inhibitors. Five metabolites, quercetin, kaempferol, luteolin, flavone, and rutin, were selected for further evaluation of their impacts on the growth, toxin production, and virulence of .
View Article and Find Full Text PDFJ Antimicrob Chemother
July 2024
Diagnostic and Research Institute of Hygiene, Microbiology and Environmental Medicine, Diagnostic and Research Center for Molecular Biomedicine, Medical University of Graz, Graz, Austria.
Background: The glycopeptide vancomycin is the antimicrobial agent-of-choice for the treatment of severe non-gastrointestinal infections with members of Bacillus cereus sensu lato (s.l.).
View Article and Find Full Text PDFAlzheimers Dement
June 2024
Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
Introduction: Platelets serve as the primary peripheral reservoir of amyloid beta (Aβ). However, there is limited research on platelet markers in routine blood examinations, particularly with regard to the large platelet ratio (P-LCR) in Alzheimer's disease (AD).
Methods: This study included 512 AD patients and 205 healthy controls (HCs).
Mar Drugs
March 2024
Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Hainan University, Haikou 570228, China.
, a common food-borne pathogen, forms biofilms and generates virulence factors through a quorum sensing (QS) mechanism. In this study, six compounds (dankasterone A, demethylincisterol A, zinnimidine, cyclo-(L-Val-L-Pro), cyclo-(L-Ile-L-Pro), and cyclo-(L-Leu-L-Pro)) were isolated from the endophytic fungus of the sp. in the South China Sea.
View Article and Find Full Text PDFOpen Vet J
January 2024
Microbiology Department, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt.
Background: () biofilm is grown not only on medical devices but also on different substrata and is considered a potential hazard in the food industry. Quorum sensing plays a serious role in the synthesis of biofilm with its surrounding extracellular matrix enabling irreversible connection of the bacteria.
Aim: The goal of the current investigation was to ascertain the prevalence, patterns of antimicrobial resistance, and capacity for biofilm formation in meat and meat products in Egypt.
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