Results 31 to 40 of about 3,968 (183)

Multicenter Study of Colistin Heteroresistance in Carbapenem-Resistant Klebsiella pneumoniae Strains in China

open access: yesMicrobiology Spectrum, 2023
Colistin has been considered a last-line option for the treatment of infections caused by carbapenem-resistant Klebsiella pneumoniae (CRKP). Heterogeneous resistance to colistin leads to unexplained clinical colistin treatment failure for CRKP. Our study
Yuesong Weng   +9 more
doaj   +2 more sources

Study on the heteroresistance of carbapenem-resistant Klebsiella pneumoniae to Tigecycline and Polymyxin B and antibacterial activity of combined drugs in vitro [PDF]

open access: yesBMC Microbiology
Background Antimicrobial resistance is a global concern. Tigecycline (TGC) and polymyxin B (PMB) constitute some of the last treatment options remaining for carbapenem-resistant Klebsiella pneumoniae (CRKP).
Yulan Dong   +4 more
doaj   +2 more sources

Approaches for identifying and measuring heteroresistance in azole-susceptible Candida isolates

open access: yesMicrobiology Spectrum
Heteroresistance to antifungal agents poses a significant challenge in the treatment of fungal infections. Currently, the absence of established methods for detecting and measuring heteroresistance impedes progress in understanding this phenomenon in ...
Cécile Gautier   +2 more
doaj   +2 more sources

Eravacycline activity against clinical S. aureus isolates from China: in vitro activity, MLST profiles and heteroresistance

open access: yesBMC Microbiology, 2018
Background Mortality rates for patients with Staphylococcus aureus (S. aureus) infections have improved only modestly in recent decades and S. aureus infections remain a major clinical challenge This study investigated the in vitro antimicrobial activity
Fan Zhang   +12 more
doaj   +2 more sources

Progress in the Study of Polymyxin Heteroresistance Molecular Mechanisms

open access: yesXiehe Yixue Zazhi
Polymyxins, a class of cyclic peptide antibiotics, have become the last line of defense against gram-negative bacterial infections as the number of multidrug-resistant bacteria continues to rise.
LI Yanbing, ZHOU Menglan, XU Yingchun
doaj   +2 more sources

Epidemiology, mechanisms, and clinical impact of bacterial heteroresistance

open access: yesnpj Antimicrobials and Resistance
Bacterial heteroresistance, a phenomenon where subpopulations within a bacterial strain exhibit significantly reduced antibiotic susceptibility compared to the main population, poses a major challenge in managing infectious diseases.
Linna Xu   +5 more
doaj   +3 more sources

Heteroresistance to Colistin in Clinical Isolates of Klebsiella pneumoniae Producing OXA-48 [PDF]

open access: yesAntibiotics, 2023
Heteroresistance to colistin can be defined as the presence of resistant subpopulations in an isolate that is susceptible to this antibiotic. Colistin resistance in Gram-negative bacteria is more frequently related to chromosomal mutations and insertions.
Irene Sánchez-León   +5 more
doaj   +2 more sources

Systematic review and meta-analysis of colistin heteroresistance in Klebsiella pneumoniae isolates

open access: yesBMC Infectious Diseases
Background Antibiotic heteroresistance is a common phenotype observed in a variety of pathogenic bacteria such as K. pneumonia: A subpopulation of cells with a higher MIC than the dominant population is defined as heteroresistance.
Saeed Khoshnood   +5 more
doaj   +2 more sources

Three concurrent mechanisms generate gene copy number variation and transient antibiotic heteroresistance

open access: yesNature Communications
Heteroresistance is a medically relevant phenotype where small antibiotic-resistant subpopulations coexist within predominantly susceptible bacterial populations. Heteroresistance reduces treatment efficacy across diverse bacterial species and antibiotic
Hervé Nicoloff   +3 more
doaj   +2 more sources

Ceftaroline-Heteroresistant Staphylococcus aureus [PDF]

open access: yesAntimicrobial Agents and Chemotherapy, 2014
ABSTRACT Heteroresistance refers to the presence, within a large population of antimicrobial-susceptible microorganisms, of subpopulations with lesser susceptibilities. Ceftaroline is a novel cephalosporin with activity against methicillin-resistant Staphylococcus aureus (MRSA).
Stephanie N, Saravolatz   +4 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy