Results 21 to 30 of about 2,359,106 (231)

A Clinico-Microbiological Study of Blood Stream Infections in a Tertiary Referral Hospital: Colistin Resistance & Challenges [PDF]

open access: yes, 2023
Carbapenems, frequently used for the treatment of infections caused by Multidrug-resistant (MDR) Gram-negative bacteria (GNB) are being reported with increased resistance rate.
Jyoti Chaudhary   +2 more
core   +1 more source

Ser253Leu substitution in PmrB contributes to colistin resistance in clinical Acinetobacter nosocomialis

open access: yesEmerging Microbes and Infections, 2021
Infections caused by extensively drug-resistant (XDR) Acinetobacter nosocomialis have become a challenging problem. The frequent use of colistin as the last resort drug for XDR bacteria has led to the emergence of colistin-resistant A.
Ya-Sung Yang   +10 more
doaj   +1 more source

Assessment of colistin resistance in Gram negative bacteria from clinical samples in resource-limited settings

open access: yesAsian Pacific Journal of Tropical Medicine, 2022
Objective: To find a proper method to assess colistin resistance in multidrug resistant Gram negative bacteria (MDR-GNB) on a routine basis in resource limited settings. Methods: Clinical samples were processed.
Shubham Chauhan   +4 more
doaj   +1 more source

Transition of colistin dependence into colistin resistance in Acinetobacter baumannii [PDF]

open access: yesScientific Reports, 2017
AbstractWe recently demonstrated a high rate of colistin dependence in Acinetobacter baumannii isolates exposed to colistin in vitro. In the present study, we obtained a colistin-resistant (H08-391R) and colistin-dependent mutant (H08-391D) from a colistin-susceptible parental strain (H08-391). We found that the colistin-dependent mutant converted into
Lee, Ji-Young   +2 more
openaire   +3 more sources

Presence of Colistin- and Tigecycline-Resistant Klebsiella pneumoniae ST29 in Municipal Wastewater Influents in Japan [PDF]

open access: yes, 2021
The aim of this study was to investigate the presence of colistin- and/or tigecycline-resistant Klebsiella spp. in influents from four wastewater treatment plants (WWTPs), which partly reflect the gut microbiome of human populations.
Nagano, Yukiko   +8 more
core   +1 more source

The surveillance of colistin resistance and mobilized colistin resistance genes in multidrug-resistant Enterobacteriaceae isolated in Japan

open access: yesInternational Journal of Antimicrobial Agents, 2022
The plasmid-mediated bacterial colistin-resistant gene, mcr, is of global concern in clinical healthcare. However, there are few reports of surveillance for mcr in Japan. The aim of this study was to assess the prevalence of colistin resistance by identifying nine mcr genes in extended-spectrum beta-lactamase (ESBL)-producing Enterobacteriaceae and ...
Yasuhide Kawamoto   +12 more
openaire   +2 more sources

Nonclonal Emergence of Colistin Resistance Associated with Mutations in the BasRS Two-Component System in Escherichia coli Bloodstream Isolates

open access: yesmSphere, 2020
Infections by multidrug-resistant Gram-negative bacteria are increasingly common, prompting the renewed interest in the use of colistin. Colistin specifically targets Gram-negative bacteria by interacting with the anionic lipid A moieties of ...
Axel B. Janssen   +6 more
doaj   +1 more source

A link between pH homeostasis and colistin resistance in bacteria

open access: yesScientific Reports, 2021
Colistin resistance is complex and multifactorial. DbcA is an inner membrane protein belonging to the DedA superfamily required for maintaining extreme colistin resistance of Burkholderia thailandensis. The molecular mechanisms behind this remain unclear.
Pradip R. Panta, William T. Doerrler
doaj   +1 more source

Colistin Resistance Mechanisms in Human Salmonella enterica Strains Isolated by the National Surveillance Enter-Net Italia (2016–2018)

open access: yes, 2022
Background: A collection of human-epidemiologically unrelated S. enterica strains collected over a 3-year period (2016 to 2018) in Italy by the national surveillance Enter-Net Italia was analysed.
Claudia Lucarelli   +18 more
core   +1 more source

Circumventing colistin resistance by combining colistin and antimicrobial peptides to kill colistin-resistant and multidrug-resistant Gram-negative bacteria

open access: yesJournal of Global Antimicrobial Resistance, 2020
Colistin is a 'last-line' antibiotic used to treat multidrug-resistant Gram-negative bacteria, but colistin resistance has emerged. Colistin normally binds to the lipid A moiety on the bacterial outer membrane, where it then destroys the bacterial membrane.
Kaitlin S. Witherell   +4 more
openaire   +3 more sources

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