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Role of Efflux Pump Gene adeIJK to Multidrug Resistance in Acinetobacter baumannii Clinical Isolates

Choi JA, Kim CM, Jang SJ, Cho SS, Jang CH, Ko YJ, Kang SH, Park G

BACKGROUND: The emergence of multidrug-resistant Acinetobacter baumannii as a nosocomial pathogen is one of the major public health problems. The aim of this study was to evaluate the role of...
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Evaluation of Synergistic Effect of Combined Treatment with Linalool and Colistin on Multidrug-Resistant Acinetobacter baumannii to Expand Candidate for Therapeutic Option

Kim UJ, Kim CM, Jang SJ, Lee SB, Cho SS, Jeong SH, Ko YJ, Kang SH, Park G, Kim DM, Yoon NR, Ahn YJ, Lim DH, Kook JK

BACKGROUND: Acinetobacter baumannii infection is a significant health problem worldwide due to increased drug resistance. The limited antimicrobial alternatives for the treatment of severe infections by multidrug-resistant A. baumannii (MDRAB)...
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A Novel Mismatched PCR-Restriction Fragment Length Polymorphism Assay for Rapid Detection of gyrA and parC Mutations Associated With Fluoroquinolone Resistance in Acinetobacter baumannii

Kakuta N, Nakano R, Nakano A, Suzuki Y, Tanouchi A, Masui T, Horiuchi S, Endo S, Kakuta R, Ono Y, Yano H

BACKGROUND: Mutations in the quinolone resistance-determining regions (QRDRs) of Acinetobacter baumannii DNA gyrase (gyrA) and topoisomerase IV (parC) are linked to fluoroquinolone (FQ) resistance. We developed a mismatched PCR-restriction fragment...
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Adjustment of Modified Carbapenem Inactivation Method Conditions for Rapid Detection of Carbapenemase-Producing Acinetobacter baumannii

Vu TN, Byun JH, D'Souza R, Pinto NA, Nguyen LP, Yong D, Chong Y

BACKGROUND: The existing modified carbapenem inactivation methods (mCIMs) recommended by the CLSI for detecting carbapenemase production have not been applicable for Acinetobacter baumannii. We evaluated the influence of matrices used...
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Polymicrobial Keratitis of Pseudomonas aeruginosa, Acinetobacter baumannii, and Ochrobactrum anthropi

Kang JY, Song JH, Nam KY, Lee SU, Lee SJ

PURPOSE: To report polymicrobial keratitis involving Pseudomonas aeruginosa, Acinetobacter baumannii, and Ochrobactrum anthropi. CASE SUMMARY: A 53-year-old female complained of pain and secretion in her right eye, which started 6 weeks...
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RND efflux pump systems in Acinetobacter, with special emphasis on their role in quorum sensing

Subhadra B, Oh MH, Choi CH

Acinetobacter is an important opportunistic, multidrug resistant pathogen causing majority of nosocomial infections worldwide. The multidrug resistance is attributed by a plethora of efflux pumps and the overexpression of the...
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Colonization Prevalence and Risk Factor Analysis of Carbapenem-Resistant Acinetobacter baumannii in an Intensive Care Unit without Outbreaks

Kim YA, Park YS, Lee SS, Son YJ, Yeon JH, Seo YH, Lee K

BACKGROUND: Acinetobacter baumannii is a well-known etiologic agent of a variety of nosocomial infections; the resistance rate to imipenem is surprisingly high in Korea. The colonization of carbapenem-resistant A. baumannii...
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Colistin, Hot Potato for the Therapy of Carbapenem-resistant Acinetobacter baumannii infections

Park SW

No abstract available.
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Distribution of adeG, adeB, adeE, adeY, abeM, and adeJ Efflux Pump Genes in Clinical Isolates of Acinetobacter Species from Korea

Choi IS, Choi JA, Jang SJ, Park G, Jeong SH, Kim CM, Lee OJ, Kang SH, Moon DS

BACKGROUND: The aim of the present study was to determine the frequency of six efflux pump genes in Acinetobacter clinical isolates collected from South Korean hospitals. METHODS: In this study, we...
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Management of carbapenem-resistant Acinetobacter baumannii epidemic in an intensive care unit using multifaceted intervention strategy

Hong J, Jang OJ, Bak MH, Baek EH, Park KH, Hong SI, Cho OH, Bae IG

BACKGROUND/AIMS: We evaluated the effects of a multifaceted intervention for controlling a carbapenem-resistant Acinetobacter baumannii (CRAB) epidemic in an intensive care unit (ICU) with no restrictions on carbapenem use. METHODS: This...
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Seasonal and Temperature-Associated Increase in Community-Onset Acinetobacter baumannii Complex Colonization or Infection

Kim YA, Kim JJ, Won DJ, Lee K

Identifying the trends in community-onset Acinetobacter baumannii complex isolation and diversity according to temperature could help provide insight into the behavior of the A. baumannii complex. We performed a retrospective...
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Abrupt Increase in Rate of Imipenem Resistance in Acinetobacter baumannii Complex Strains Isolated from General Hospitals in Korea and Correlation With Carbapenem Administration During 2002–2013

Kim YA, Park YS, Youk T, Lee H, Lee K

No abstract available.
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Nucleotide-binding oligomerization domain 1 is dispensable for host immune responses against pulmonary infection of Acinetobacter baumannii in mice

Kang MJ, Choi JA, Choi JH, Jang AR, Park JY, Ahn JH, Lee TS, Kim DY, Park JH

Nucleotide-binding domain 1 (Nod1) is a cytosolic receptor that is responsible for the recognition of a bacterial peptidoglycan motif containing meso-diaminophimelic acid. In this study, we sought to identify the...
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Differences in Colistin-resistant Acinetobacter baumannii Clinical Isolates Between Patients With and Without Prior Colistin Treatment

Park YJ, Hong DJ, Yoon EJ, Kim D, Choi MH, Hong JS, Lee H, Yong D, Jeong SH

BACKGROUND: The increasing morbidity and mortality rates associated with Acinetobacter baumannii are due to the emergence of drug resistance and the limited treatment options. We compared characteristics of colistin-resistant Acinetobacter...
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Association of biofilm production with colonization among clinical isolates of Acinetobacter baumannii

Ryu SY, Baek WK, Kim HA

BACKGROUND/AIMS: The pathogen Acinetobacter baumannii is increasingly causing healthcare-associated infections worldwide, particularly in intensive care units. Biofilm formation, a factor contributing to the virulence of A. baumannii, is associated with...
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A Case of Community-Acquired Pneumonia Caused by Multidrug-Resistant Acinetobacter baumannii in Korea

Son YW, Jung IY, Ahn MY, Jeon YD, Ann HW, Ahn JY, Ku NS, Han SH, Choi JY, Song YG, Kim JM

Acinetobacter baumannii is an aerobic Gram-negative coccobacillus that causes nosocomial pneumonia in patients on mechanical ventilation or previously treated with broad-spectrum antibiotics. Nevertheless, community-acquired pneumonia (CAP) caused by A. baumannii,...
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Assessment of Efflux Activity Using H33342 Accumulation in Tigecycline-Resistant Acinetobacter baumannii Clinical Isolates

Kim CM, Choi IS, Jang SJ, Yun NR, Kim DM, Lim D, Ahn YJ, Kang SH, Park G, Moon DS

BACKGROUND: Tigecycline resistance has emerged recently and has shown diverse mechanisms. The aim of this study was to assess the role of efflux activity in tigecycline resistance in 120 clinical...
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Successful Treatment of Acinetobacter Baumannii Meningitis with Colistin

Choi PK, Kim KH, Kang HG

Acinetobacter baumannii is a source of opportunistic infection in hospital and can cause central nervous system infection mainly by neurosurgical operation. Community acquired infection by Acinetobacter baumannii is very rare....
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Delta Neutrophil Index for Predicting Mortality in Critically Ill Surgical Patients with Acinetobacter baumannii Pneumonia

Shin IS, Jang JY, Shim H, Lee JW, Bae KS

PURPOSE: This retrospective study evaluated the clinical utility of the delta neutrophil index (DNI) as a predictor of mortality in critically ill surgical patients with Acinetobacter baumannii (AB) pneumonia. METHODS: The...
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A 5-year Surveillance Study on Antimicrobial Resistance of Acinetobacter baumannii Clinical Isolates from a Tertiary Greek Hospital

Maraki S, Mantadakis E, Mavromanolaki VE, Kofteridis DP, Samonis G

BACKGROUND: Acinetobacter baumannii has emerged as a major cause of nosocomial outbreaks. It is particularly associated with nosocomial pneumonia and bloodstream infections in immunocompromised and debilitated patients with serious underlying...
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