A Novel Genome-Editing Platform for Drug-Resistant Acinetobacter baumannii Reveals an AdeR-Unrelated Tigecycline Resistance Mechanism
نویسندگان
چکیده
منابع مشابه
High tigecycline resistance in multidrug-resistant Acinetobacter baumannii.
OBJECTIVES Multidrug-resistant (MDR) Acinetobacter baumannii is increasing in our hospital and worldwide, raising the necessity of finding effective therapies. We aimed to evaluate the in vitro activity of tigecycline against MDR A. baumannii clones isolated before tigecycline was used in our institution. METHODS Eighty-two unique patient clinical isolates of multidrug-resistant A. baumannii ...
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RATIONALE Intracranial infection with Acinetobacter baumannii is a tough problem due to the presence of multiresistance and drugs poor penetration through the blood brain barrier (BBB). Tigecycline is effective to cure A baumannii, but it can only be used intravenously which is also difficult to pass BBB. So, it will be a breakthrough if intraventricular (IVT) tigecycline is used in the clinica...
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second patient were within the same subgroup, but similarity in nucleotide sequences was only 82.5%. This result suggests that this patient was infected with 2 different virus strains of HRV-A and a strain of HRV-C. Comparison of the HRV-A strains with the HRV-C strain showed that they belonged to different subgroups and had low similarity for nucleotide sequences. The second patient had 3 dist...
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An EZ::TNTnp transposon insertion in an open reading frame of unknown function (ncr) in Acinetobacter baumannii resulted in an 8-fold increase in ciprofloxacin resistance (Cip(r)). Transposon insertions in an ncr mutant that reduced Cip(r) back to wild type mapped to three genes encoding subunits of the RecCBD exonuclease. The ncr mutation increased transcription of the recCBD ge...
متن کاملIn vitro activity of tigecycline against multidrug-resistant Acinetobacter baumannii.
This survey was conducted to evaluate the in vitro activity of tigecycline against 50 isolates of multidrug-resistant (MDR) Acinetobacter baumannii. Isolates of A. baumannii were resistant to ciprofloxacin, chloramphenicol, imipenem, levofloxacin, piperacillin and piperacillin-tazobactam, but were always susceptible to colistin. MICs of tigecycline were determined by E-test in Mueller-Hinton ag...
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ژورنال
عنوان ژورنال: Antimicrobial Agents and Chemotherapy
سال: 2016
ISSN: 0066-4804,1098-6596
DOI: 10.1128/aac.01275-16