This report describes an activity range index derived from the minimal bactericidal and antibiotic concentrations of four aminoglycosides against four representatives of clinically important gram-negative bacilli. The ranking orders of in vitro activity differed from those using the minimal bactericidal concentration or the minimal antibiotic concentration as the sole criterion.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC183686PMC
http://dx.doi.org/10.1128/AAC.22.1.137DOI Listing

Publication Analysis

Top Keywords

minimal bactericidal
8
activities aminoglycosides
4
aminoglycosides subbactericidal
4
subbactericidal concentrations
4
concentrations report
4
report describes
4
describes activity
4
activity range
4
range derived
4
derived minimal
4

Similar Publications

Tuberculosis (TB) remains a major global threat, with 10 million new cases and 1.5 million deaths each year. In multidrug-resistant tuberculosis (MDR-TB), resistance is most commonly observed against isoniazid (INH) and rifampicin (RIF), the two frontline drugs.

View Article and Find Full Text PDF

Background: Surgical site infections (SSIs) have been shown to increase patient morbidity and mortality, impact on quality of life and place a significant economic burden on healthcare systems worldwide. Irrigation using wound cleansing and antiseptic effective solutions during surgical procedures is a key part of SSI prevention. The optimal solution would have minimal cytotoxicity to the patient while maintaining a minimum concentration required for antimicrobial activity necessary to prevent opportunistic pathogens and biofilm formation.

View Article and Find Full Text PDF

A Bioinspired Virus-Like Mechano-Bactericidal Nanomotor for Ocular Multidrug-Resistant Bacterial Infection Treatment.

Adv Mater

January 2025

Eye Institute of Shandong First Medical University, State Key Laboratory Cultivation Base, Shandong Key Laboratory of Eye Diseases, School of Ophthalmology, Shandong First Medical University, Qingdao, 266071, P. R. China.

Multidrug-resistant (MDR) bacteria and their associated biofilms are major causative factors in eye infections, often resulting in blindness and presenting considerable global health challenges. Presently, mechano-bactericidal systems, which combine distinct topological geometries with mechanical forces to physically induce bacterial apoptosis, show promising potential. However, the physical interaction process between current mechano-bactericidal systems and bacteria is generally based on passive diffusion or Brownian motion and lacks the force required for biofilm penetration; thus, featuring low antibacterial efficacy.

View Article and Find Full Text PDF

CMCS-PVA@CA hydrogel dressing: A promoter of wound healing with MRSA virulence attenuation function.

Int J Biol Macromol

January 2025

College of Food Science and Engineering, Jilin University, Changchun 130062, PR China. Electronic address:

Traditional wound dressings, primarily centered on antimicrobial or bactericidal strategies, have inadvertently contributed to the rise of drug-resistant bacterial colonies at wound sites, thus prolonging the healing process. In this study, we developed an innovative hydrogel dressing, CMCS-PVA@CA, incorporating carboxymethyl chitosan (CMCS), polyvinyl alcohol (PVA), and cichoric acid (CA), specifically designed to treat skin wounds infected with methicillin-resistant Staphylococcus aureus (MRSA). Computational biology analyses reveal that CA exerts substantial anti-virulence activity by targeting serine/threonine phosphatase (Stp1), achieving an IC of 3.

View Article and Find Full Text PDF

Synergistic effect of naringenin and mild heat for inactivation of E. coli O157:H7, S. Typhimurium, L. monocytogenes, and S. aureus in peptone water and cold brew coffee.

Int J Food Microbiol

January 2025

Department of Food and Nutrition, College of Human Ecology, Seoul National University, Seoul 08826, Republic of Korea; Research Institute of Human Ecology, Seoul National University, Seoul 08826, Republic of Korea. Electronic address:

This study aimed to investigate the bactericidal effect of naringenin (NG), a plant-derived flavonoid, and its synergistic effect with mild heat (MH) treatment at 50 °C in peptone water (PW) and ready-to-drink cold brew coffee (RDC). Among various NG concentrations (1-20 mM), 10 mM NG resulted in the greatest inactivation for Escherichia coli O157:H7, Salmonella Typhimurium, Listeria monocytogenes, and Staphylococcus aureus. In RDC, NG + MH treatment resulted in a 5-8-log reduction in all pathogens after 10 min, except for S.

View Article and Find Full Text PDF

Want 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!