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NDM-producing Enterobacteriaceae

ABSTRACT: NDM-producing 4 Escherichia coli, 2 Klebsiella pneumoniae, 1 Enterobacter spp., and 1 Citrobacter freundii strains isolated in South Korea Genome sequencing and assembly

PROVIDER: PRJNA416193 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	GCA_002786655.1_sequence_report.txt	Txt
	GCA_002786755.1_sequence_report.txt	Txt
	GCA_002786865.1_sequence_report.txt	Txt
	GCA_002787395.1_sequence_report.txt	Txt
	GCA_002787545.1_sequence_report.txt	Txt

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Project description:NDM-1-producing Citrobacter. freundii

| PRJNA792258 | ENA

First dataset - bacterial proteome of carbapanemase-producing Escherichia coli and other Enterobacteriaceae under antibiotic pressure

Project description:Antibiotic resistance associated with the expression of the clinically significant carbapenemases, IMP, KPC, and NDM and OXA-48 in Enterobacteriaceae is emerging as a worldwide calamity to health care. In Australia, IMP-producing Enterobacteriaceae is the most prevalent carbapenemase-producing Enterobacteriaceae (CPE). Genomic characteristics of such carbapenemase-producing Enterobacteriaceae (CPE) are well described, but the corresponding proteome is poorly characterised. We have thus developed a method to analyse dynamic changes in the proteome of CPE under antibiotic pressure. Specifically, we have investigated the effect of meropenem at sub-lethal concentrations to develop a better understanding of how antibiotic pressure leads to resistance. Escherichia coli, producing either NDM, IMP or KPC type carbapenemase were included in this study, and their proteomes were analysed in growth conditions with or without meropenem.

2018-07-11 | PXD008019 | Pride

Emergence of NDM-producing Klebsiella pneumoniae isolates

Project description:NDM-producing Klebsiella pneumoniae

| PRJEB61083 | ENA

Enterobacteriaceae

Project description:Whole-genome sequencing of KPC-type carbapenemase producing Klebsiella pneumoniae, Citrobacter freundii complex, and Morganella morganii

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Plasmid-chromosome transcriptional crosstalk in multidrug resistant clinical enterobacteria

Project description:Conjugative plasmids are the main vehicle for the horizontal spread of antimicrobial resistance (AMR). Although AMR plasmids provide advantages to their hosts under antibiotic pressure, they can also disrupt the cell’s regulatory network, impacting the fitness of their hosts. Despite the importance of plasmid-bacteria interactions on the evolution of AMR, the effects of plasmid carriage on host physiology has remained underexplored, and most studies have focused on model bacteria and plasmids that lack clinical relevance. Here, we analyzed the transcriptional response of 11 clinical enterobacterial strains (2 Escherichia coli, 1 Citrobacter freundii and 8 Klebsiella spp.) and the laboratory-adapted E. coli MG1655 to carriage of pOXA-48, one of the most widely spread carbapenem-resistance plasmids. Our analyses revealed that pOXA-48 produces variable responses on their hosts, but commonly affects processes related to metabolism, transport, response to stimulus, cellular organization and motility. More notably, the presence of pOXA-48 caused an increase in the expression of a small chromosomal operon of unknown function in Klebsiella spp. and C. freundii, which is not present in E. coli. Phylogenetic analysis suggested that this operon has been horizontally mobilized across different Proteobacteria species. We demonstrate that a pOXA-48-encoded LysR transcriptional regulator controls the expression of the operon in Klebsiella spp. and C. freundii. In summary, our results highlight a crosstalk between pOXA-48 and the chromosome of its natural hosts.

2024-07-16 | GSE269852 | GEO

Emergence of NDM-1-producing Enterobacteriaceae in Belgium.

Project description:Five multidrug-resistant nonclonally related Enterobacteriaceae isolates were recovered in Belgium in 2010 from three patients who had been hospitalized in Pakistan, Montenegro, and Serbia/Kosovo. New Delhi metallo-β-lactamase (NDM-1) was detected in each of the isolates in addition to several extended-spectrum β-lactamases (CTX-M-15, SHV-12), plasmidic cephalosporinases (CMY-16, CMY-58), rRNA methylases (ArmA, RmtB), and Qnr genes (qnrA6, qnrB1, qnrB2). One patient died from uncontrolled sepsis, while the two others recovered. No secondary cases occurred in any of the hospitals.

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Enterobacteriaceae

Project description:Genome sequencing of Enterobacter cloacae and Citrobacter

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Project description:NDM-Producing Salmonella spp.

| PRJNA1045343 | ENA

GES-7-producing Citrobacter freundii

Project description:OXA-427-, and GES-7-producing Citrobacter freundii clones linked to sanitary drainage

| PRJEB44899 | ENA

Zidovudine enhances activity of carbapenems against NDM-1-producing Enterobacteriaceae.

Project description:ObjectivesTo investigate the efficacy of zidovudine in combination with carbapenems against NDM-1-producing Enterobacteriaceae.MethodsMICs were determined using the broth microdilution method. The combinatory effects of zidovudine and carbapenems were examined using the chequerboard method and time-kill analysis.ResultsWe found that the NDM-1-producing strains were resistant to all carbapenems tested. FIC index from chequerboard assay demonstrated that zidovudine synergized with carbapenems against all the NDM-1 strains. Time-kill analysis demonstrated significant synergistic activity when a low level of zidovudine was combined with meropenem.ConclusionsZidovudine in combination with carbapenems produced synergistic activity against NDM-1 Enterobacteriaceae strains in vitro.

| S-EPMC8654596 | biostudies-literature

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