Results 41 to 50 of about 12,305,089 (195)

Tobramycin Reduces Pulmonary Toxicity of Polymyxin B via Inhibiting the Megalin-Mediated Drug Uptake in the Human Lung Epithelial Cells

open access: yesPharmaceutics
Accumulation of polymyxins in the lung epithelial cells can lead to increased mitochondrial oxidative stress and pulmonary toxicity. Aminoglycosides and polymyxins are used, via intravenous and pulmonary delivery, against multidrug-resistant Gram ...
Maizbha Uddin Ahmed   +2 more
doaj   +1 more source

Bacterial Mixology: Combining Pharmacodynamic Models to Predict In Vitro Competition of MCR-1-Harboring E. coli

open access: yesAntibiotics, 2021
The emergence of mobile colistin resistance (mcr)-mediated polymyxin resistance has resulted in a significant detriment to the utility of the polymyxins in the clinical setting.
Nicholas M. Smith   +3 more
doaj   +1 more source

Images of LLC-PK1 cells incubated with Lissamine rhodamine-polymyxin B (LRhod-polymyxin B).

open access: yes, 2016
Control cells incubated in physiological media (A), cells exposed to 75 μM LRhod-polymyxin B for 4 hours (B), cells exposed to 75 μM LRhod-PMB for 8 hours (C), and cells exposed to 75 μM LRhod-polymyxin B for 24 hours (D).
Edson Andrade Pessoa (2993853)   +5 more
core   +1 more source

Comparison of nephrotoxicity of Colistin with Polymyxin B administered in currently recommended doses: a prospective study

open access: yesAnnals of Clinical Microbiology and Antimicrobials, 2018
Background The most important concern with polymyxins (Colistin and Polymyxin B) use is nephrotoxicity. There is no prospective data comparing nephrotoxicity of these two drugs, when administered in high doses and as per current recommendations.
Ritesh Aggarwal, Arun Dewan
doaj   +1 more source

Polymyxin B-Induced Kidney Injury Assessment of a Novel Formulation of Polymyxin B (VRP-034) in Rats

open access: yes, 2021
Despite the crucial role of Polymyxin-B in treating life-threatening gram-negative infections, its clinical utility is limited due to the risk of acute kidney injury.
Saransh Chaudhary   +5 more
core   +1 more source

Pharmacokinetic/Pharmacodynamic Based Breakpoints of Polymyxin B for Bloodstream Infections Caused by Multidrug-Resistant Gram-Negative Pathogens

open access: yesFrontiers in Pharmacology, 2022
The latest PK/PD findings have demonstrated negligible efficacy of intravenous polymyxins against pulmonary infections. We investigated pharmacokinetic/pharmacodynamic (PK/PD)-based breakpoints of polymyxin B for bloodstream infections and the ...
Xingchen Bian   +19 more
doaj   +1 more source

Novel polymyxin derivatives are less cytotoxic than polymyxin B to renal proximal tubular cells

open access: yes, 2012
The emergence of very multiresistant Gram-negative bacterial strains has reinstated polymyxins (polymyxin B, colistin), pentacationic lipopeptides, in the therapy, in spite of their nephrotoxicity. Extensive tubular reabsorption concentrates polymyxin in
Denamur, Sophie   +4 more
core   +1 more source

Polymyxin B broth disk elution as a screening test to determine polymyxin B susceptibility in enterobacterales [PDF]

open access: yes, 2019
Detection of polymyxins susceptibility by clinical laboratories is a nightmare mainly because of physicochemical properties of the drug. The aim of this study was to evaluate accuracy of Polymyxin B Broth Disk Elution (PBDE), as screening test, compared ...
Cielo, Naiany Canabarro
core   +1 more source

Quantitative Determination of Major Active Components in Polymyxin B Medicinal Products by NMR Spectroscopy

open access: yesРегуляторные исследования и экспертиза лекарственных средств
INTRODUCTION. Polymyxin B is a natural multicomponent antibiotic used in its sulfate form for the treatment of infections caused by multidrug-resistant Gram-negative bacteria. Pharmacopoeial standards for polymyxin B medicinal products include limits for
N. E. Kuz’mina   +3 more
doaj   +1 more source

Evaluation of the interaction between polymyxin B and Pseudomonas aeruginosa biofilm and planktonic cells: reactive oxygen species induction and zeta potential

open access: yesBMC Microbiology, 2019
Background Although the most widely accepted mechanism of action for polymyxins is related to bacterial lysis via disruption, we hypothesized that this antimicrobial drug class could have other effects on Pseudomonas aeruginosa planktonic and sessile ...
Marlucy Rodrigues Lima   +10 more
doaj   +1 more source

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