Results 41 to 50 of about 5,051 (197)

Resistencia a colistina mediada por plásmido en Escherichia coli recuperadas de aves de corral sanas [PDF]

, 2017
Resistencia a colistina mediada por plásmido en Escherichia coli recuperadas de aves de corral sanas.Fil: Dominguez, Johana Elizabeth. Consejo Nacional de Investigaciones Científicas y Técnicas.
Cejas, Daniela, Chacana, Pablo Anibal, Di Conza, José Alejandro, Dominguez, Johana Elizabeth, Fernandez Miyakawa, Mariano Enrique, Figueroa Espinosa, Roque Arnulfo, Gutkind, Gabriel Osvaldo, Redondo, Leandro Martin   +7 more
core   +1 more source

Heteroresistance to Vancomycin in Enterococcus faecium [PDF]

Journal of Clinical Microbiology, 2001
ABSTRACT This study presents the first report of vancomycin heteroresistance in an Enterococcus faecium isolate from a patient. The original isolate was susceptible in vitro to vancomycin. E-tests showed growth of subcolonies in a zone of inhibition with a vancomycin MIC of >256 μg/ml.
M R, Alam, S, Donabedian, W, Brown, J, Gordon, J W, Chow, M J, Zervos, E, Hershberger   +6 more
openaire   +2 more sources

Fluoroquinolone heteroresistance, antimicrobial tolerance, and lethality enhancement

Frontiers in Cellular and Infection Microbiology, 2022
With tuberculosis, the emergence of fluoroquinolone resistance erodes the ability of treatment to interrupt the progression of MDR-TB to XDR-TB. One way to reduce the emergence of resistance is to identify heteroresistant infections in which subpopulations of resistant mutants are likely to expand and make the infections fully resistant: treatment ...
Amit Singh, Amit Singh, Xilin Zhao, Xilin Zhao, Karl Drlica   +4 more
openaire   +3 more sources

Two types of colistin heteroresistance in Acinetobacter baumannii isolates

Emerging Microbes and Infections, 2020
In this study, we investigated the colistin heteroresistance patterns in Acinetobacter baumannii isolates. To identify colistin heteroresistance, population analysis profiling was performed for six in vitro colistin-susceptible A.
Yoon-Kyoung Hong, Hyunkeun Kim, Kwan Soo Ko   +2 more
doaj   +1 more source

The combination of colistin and doripenem is synergistic against Klebsiella pneumoniae at multiple inocula and suppresses colistin resistance in an in vitro pharmacokinetic/pharmacodynamic model [PDF]

, 2012
There has been a resurgence of interest in aerosolization of antibiotics for treatment of patients with severe pneumonia caused by multidrug-resistant pathogens.
Alan Forrest, Anima Poudyal, Antoniadou, Bergen, Bergen, Bergen, Bergen, Bogdanovich, Boucher, Bratu, Brian T. Tsuji, Bulitta, Caron K. Ku, Conejo, David L. Paterson, DeRyke, Dudhani, Dudhani, European Committee on Antimicrobial Susceptibility Testing, Farrell, Garonzik, Gootz, Hartzell, Hawley, Heidi H. Yu, Ho, Infectious Diseases Society of America, Jernigan, Jian Li, Jovan Jacob, Jurgen B. Bulitta, Karabinis, Kathryn Davis, Kethireddy, Kontopoulou, Kumarasamy, Kwon, Li, Li, Li, Li, Lim, Mah, Marchaim, Matthews, Meletis, Moellering, Nandy, Nation, Pankey, Phillip J. Bergen, Pillai, Plachouras, Poudyal, Rachel L. Soon, Roger L. Nation, Souli, Stressmann, Tony Velkov, Tóth, Urban, Van Wart, Yau, Zakuan Z. Deris, Ziv   +64 more
core   +1 more source

Heteroresistance to penicillin in Streptococcus pneumoniae [PDF]

Proceedings of the National Academy of Sciences, 2007
Heteroresistance to β-lactam antibiotics has been mainly described for staphylococci, for which it complicates diagnostic procedures and therapeutic success. This study investigated whether heteroresistance to penicillin exists in Streptococcus pneumoniae .
Brigitte, Morand, Kathrin, Mühlemann
openaire   +2 more sources

A Multinational Analysis of Mutations and Heterogeneity in PZase, RpsA, and PanD Associated with Pyrazinamide Resistance in M/XDR Mycobacterium tuberculosis. [PDF]

, 2017
Pyrazinamide (PZA) is an important first-line drug in all existing and new tuberculosis (TB) treatment regimens. PZA-resistance in M. tuberculosis is increasing, especially among M/XDR cases.
Catanzaro, A, Catanzaro, D, Fink, L, Jackson, RL, Pettigrove, M, Ramirez-Busby, SM, Rodwell, TC, Valafar, F   +7 more
core   +1 more source

Mechanism of Eravacycline Resistance in Clinical Enterococcus faecalis Isolates From China

Frontiers in Microbiology, 2020
Opportunistic infections caused by multidrug-resistant Enterococcus faecalis strains are a significant clinical challenge. Eravacycline (Erava) is a synthetic fluorocycline structurally similar to tigecycline (Tige) that exhibits robust antimicrobial ...
Zewen Wen, Zewen Wen, Yongpeng Shang, Yongpeng Shang, Guangjian Xu, Zhangya Pu, Zhiwei Lin, Zhiwei Lin, Bing Bai, Zhong Chen, Jinxin Zheng, Qiwen Deng, Zhijian Yu, Zhijian Yu   +13 more
doaj   +1 more source

Heteroresistance of Cryptococcus gattii to Fluconazole [PDF]

Antimicrobial Agents and Chemotherapy, 2010
ABSTRACT We analyzed 71 clinical and environmental Cryptococcus gattii strains that had been isolated before or after the advent of azole antifungals to determine their level of heteroresistance to fluconazole (LHF). All strains of C.
A, Varma, K J, Kwon-Chung
openaire   +2 more sources

Heteroresistance Is Associated With in vitro Regrowth During Colistin Treatment in Carbapenem-Resistant Klebsiella pneumoniae

Frontiers in Microbiology, 2022
Polymyxins including polymyxin B and colistin (polymyxin E) are considered the last resort for treating infections caused by carbapenem-resistant gram-negative bacteria.
Yifan Wang, Xinqian Ma, Lili Zhao, Yukun He, Wenyi Yu, Shining Fu, Wentao Ni, Zhancheng Gao   +7 more
doaj   +1 more source