Environmental pollution by antibiotics and by antibiotic resistance determinants

JL Martinez - Environmental pollution, 2009 - Elsevier
Antibiotics are among the most successful drugs used for human therapy. However, since
they can challenge microbial populations, they must be considered as important pollutants …

Efflux-mediated drug resistance in bacteria: an update

XZ Li, H Nikaido - Drugs, 2009 - Springer
Drug efflux pumps play a key role in drug resistance and also serve other functions in
bacteria. There has been a growing list of multidrug and drug-specific efflux pumps …

Functional role of bacterial multidrug efflux pumps in microbial natural ecosystems

JL Martinez, MB Sánchez… - FEMS microbiology …, 2009 - academic.oup.com
Multidrug efflux pumps have emerged as relevant elements in the intrinsic and acquired
antibiotic resistance of bacterial pathogens. In contrast with other antibiotic resistance genes …

Azithromycin in Pseudomonas aeruginosa Biofilms: Bactericidal Activity and Selection of nfxB Mutants

X Mulet, MD Maciá, A Mena, C Juan… - Antimicrobial agents …, 2009 - Am Soc Microbiol
Azithromycin (AZM) has shown promising results in the treatment of Pseudomonas
aeruginosa chronic lung infections such as those occurring in cystic fibrosis (CF) patients …

Transcriptome profiling defines a novel regulon modulated by the LysR-type transcriptional regulator MexT in Pseudomonas aeruginosa

ZX Tian, E Fargier, M Mac Aogain, C Adams… - Nucleic acids …, 2009 - academic.oup.com
Abstract The LysR-family regulator MexT modulates the expression of the MexEF-OprN
efflux system in the human pathogen Pseudomonas aeruginosa. Recently, we demonstrated …

MexT modulates virulence determinants in Pseudomonas aeruginosa independent of the MexEF-OprN efflux pump

ZX Tian, M Mac Aogain, HF O'Connor, E Fargier… - Microbial …, 2009 - Elsevier
In the human pathogen Pseudomonas aeruginosa, the LysR-family regulator MexT
modulates the induction of the tripartite MexEF-OprN resistance nodulation-division multi …

Mechanism of Transcriptional Activation by Pseudomonas aeruginosa ExsA

CA Vakulskas, KM Brady, TL Yahr - Journal of bacteriology, 2009 - Am Soc Microbiol
ExsA is a transcriptional activator of the Pseudomonas aeruginosa type III secretion system
(T3SS). The T3SS consists of> 40 genes organized within 10 transcriptional units, each of …

Structural and functional analysis of SmeT, the repressor of the Stenotrophomonas maltophilia multidrug efflux pump SmeDEF

A Hernandez, MJ Mate, PC Sanchez-Diaz… - Journal of Biological …, 2009 - ASBMB
Stenotrophomonas maltophilia is an opportunistic pathogen characterized for its intrinsic low
susceptibility to several antibiotics. Part of this low susceptibility relies on the expression of …

Fmt Bypass in Pseudomonas aeruginosa Causes Induction of MexXY Efflux Pump Expression

RE Caughlan, S Sriram, DM Daigle… - Antimicrobial agents …, 2009 - Am Soc Microbiol
The intrinsic resistance of P. aeruginosa PAO1 to the peptide deformylase inhibitor (PDF-I)
LBM415 was mediated by the MexAB-OprM and MexXY-OprM efflux pumps, the latter of …

Clinical impact of imipenem-resistant Pseudomonas aeruginosa bloodstream infections

C Suárez, C Peña, F Tubau, L Gavaldà, A Manzur… - Journal of Infection, 2009 - Elsevier
OBJECTIVES: To describe the incidence and clinical characteristics of imipenem-resistant
(IR) Pseudomonas aeruginosa bacteraemia. METHODS: We performed a retrospective …