Betaines were evaluated as potential antistaphylococcal agents for urinary tract infections. Staphylococcus aureus accumulated all tested betaines except trigonelline. S. aureus transport systems were less sensitive to carbon chain length than those of Escherichia coli. Betaines were accumulated in the absence of osmotic stress, and 10-fold more in hyperosmotic medium. Most betaines increased the osmotolerance of S. aureus in defined minimal medium. Unlike E. coli, S. aureus did not significantly accumulate a second betaine in the presence of glycine betaine. Betaines are less likely to be useful in treating staphylococcal than E. coli urinary infections.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1111/j.1574-6968.1998.tb12885.x | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
How likely is it that a virus or bacteria is causing a patient's symptoms? A new approach to interpret the outcome from multi-pathogen PCR.
Infect Dis (Lond)
January 2025
Department of Epidemiology and Biostatistics, College of Public Health, University of Georgia, Athens, GA, USA.
Background: Whether a detected virus or bacteria is a pathogen that may require treatment, or is merely a commensal 'passenger', remains confusing for many infections. This confusion is likely to increase with the wider use of multi-pathogen PCR.
Objectives: To propose a new statistical procedure to analyse and present data from case-control studies clarifying the probability of causality.
Antimicrobial consumption and resistance in a tertiary care hospital in Brazil: a 7-year time series.
J Infect Dev Ctries
December 2024
Faculdade de Farmácia, Universidade Federal de Minas Gerais, Brazil.
Introduction: Antimicrobial resistance (AMR) is a major public health challenge globally. This study aimed to analyze the antibacterial consumption (ATBc), and the incidence of multidrug-resistant organisms (MDRO), focusing on pathogens Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterobacter spp. (ESKAPE group), in a Brazilian tertiary care hospital.
View Article and Find Full Text PDFSupramolecular discrimination and diagnosis-guided treatment of intracellular bacteria.
Nat Commun
January 2025
College of Chemistry, Nankai University, Tianjin, China.
Pathogenic intracellular bacteria pose a significant threat to global public health due to the barriers presented by host cells hindering the timely detection of hidden bacteria and the effective delivery of therapeutic agents. To address these challenges, we propose a tandem diagnosis-guided treatment paradigm. A supramolecular sensor array is developed for simple, rapid, accurate, and high-throughput identification of intracellular bacteria.
View Article and Find Full Text PDFCarboxylated cellulose nanocrystals mediated flower-like zinc oxide for antimicrobial without activation of light.
J Colloid Interface Sci
April 2025
State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China. Electronic address:
Conventional light-driven antimicrobial strategies of zinc oxide (ZnO) are limited by inadequate illumination in dark environments. In this study, carboxylated cellulose nanocrystals (MCNC) mediated flower-like ZnO (C@Z) with self-promoted reactive oxygen species release under dark is fabricated. The adsorption of Zn ions on MCNC prompts the growth of ZnO along the (002) crystal plane, forming a flower-like hybrid with superior dispersibility and oxygen vacancies compared to MCNC-free ZnO, which exposes the (100) plane.
View Article and Find Full Text PDFEnhanced electrical conductivity and antibacterial properties of bacterial cellulose composite membrane decorated with hydroxypropyl-β-cyclodextrin/magnetic particle/alpha-lipoic acid/nano silver.
Int J Biol Macromol
January 2025
School of Textiles and Clothing, Yancheng Institute of Technology, Yancheng, Jiangsu 224051, China. Electronic address:
The electrical conductivity and antibacterial properties are crucial characteristics for bacterial cellulose (BC) based membranes to be broadly applied in the field of wearable electronics. In the study, to achieve these aims, alpha-lipoic acid (LA) was utilized as anchoring groups and reducing agent, hydroxypropyl-β-cyclodextrin (HP-β-CD) capped magnetic particles (FeO NPs) and the in-situ formed silver nanoparticles (AgNPs) were sequentially incorporated into the BC matrix to fabricate BC based nanocomposite membranes (HP-β-CD/FeO/LA@BC and HP-β-CD/FeO/LA/Ag@BC). Fourier transform attenuated total reflectance infrared spectroscopy (FTIR-ATR) and field emission scanning electron microscopy (FE-SEM) analysis proved the dense networks were formed in the modified BC membranes.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!