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Sulbactam acinetobacter

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https://www.readbyqxmd.com/read/28413506/active-efflux-pump-adeb-is-involved-in-multidrug-resistance-of-acinetobacter-baumannii-induced-by-antibacterial-agents
#1
Tingting Zhang, Min Wang, Yixin Xie, Xianping Li, Zhihui Dong, Yanhua Liu, Ling Wang, Min Yang, Huan Song, Hong Cao, Wei Cao
The aim of the present study was to investigate the resistance of Acinetobacter baumannii, which was induced by cefepime (FEP), cefoperazone-sulbactam (SCF), tazobactam (TZP), levofloxacin (LEV), amikacin (AK), imipenem (IPM), and ciprofloxacin (CIP), in vitro. Multi-step drug resistance selection of 16 A. baumannii strains was performed using seven antibacterial agents (FEP, TZP, CIP, AK, IPM, SCF, and LEV). The minimum inhibitory concentration (MIC) was determined using the agar dilution method. Random amplified polymorphic DNA polymerase chain reaction was performed to analyze the genotypes and the carrying rates of aac(3)-I, aac(6')-I, ant(3)-I, aph(3)-Via, OXA-23, OXA-24, AmpC, TEM-1, metallo-β-lactamase gene (IMP), armA, rmtA, rmtB, parC, gyrA and adeB...
April 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28341098/antimicrobial-activity-of-tigecycline-and-cefoperazone-sulbactam-tested-against-18-386-gram-negative-organisms-from-europe-and-the-asia-pacific-region-2013-2014
#2
M A Pfaller, R K Flamm, L R Duncan, R E Mendes, R N Jones, H S Sader
A total of 18,386 organisms, including 13,224 Enterobacteriaceae, 3536 Pseudomonas aeruginosa, 1254 Acinetobacter spp., and 372Stenotrophomonas maltophilia were collected from Western Europe (WEU; n=10,021), Eastern Europe (EEU; n=4957), and the Asia-Pacific region (APAC; n=3408 [1052 from China]) in 2013-2014 as part of the SENTRY Antimicrobial Surveillance Program and tested by a reference broth microdilution method for susceptibility against tigecycline, cefoperazone/sulbactam, and comparator agents. Overall, 95...
March 6, 2017: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/28333347/polymyxin-resistant-carbapenem-resistant-acinetobacter-baumannii-is-eradicated-by-a-triple-combination-of-agents-that-lack-individual-activity
#3
Justin R Lenhard, Visanu Thamlikitkul, Fernanda P Silveira, Samira M Garonzik, Xun Tao, Alan Forrest, Beom Soo Shin, Keith S Kaye, Jürgen B Bulitta, Roger L Nation, Jian Li, Brian T Tsuji
Objectives: The emergence of polymyxin resistance threatens to leave clinicians with few options for combatting drug-resistant Acinetobacter baumannii . The objectives of the current investigation were to define the in vitro emergence of polymyxin resistance and identify a combination regimen capable of eradicating A. baumannii with no apparent drug susceptibilities. Methods: Two clonally related, paired, A. baumannii isolates collected from a critically ill patient who developed colistin resistance while receiving colistin methanesulfonate in a clinical population pharmacokinetic study were evaluated: an A...
February 28, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28291507/comparison-of-the-efficacies-of-three-empirically-selected-antibiotics-for-treating-acinetobacter-baumannii-pulmonary-infection-experience-from-a-teaching-hospital-in-china%C3%A2
#4
Ping Li, Xiaobo Wang, Weixia Wang, Xiaojing Zhao
OBJECTIVE: Infections due to multidrug- and extensively drug-resistant forms of Acinetobacter baumannii (MDR-AB and XDR-AB, respectively) have become increasingly prevalent. This retrospective study compared the outcomes of patients infected with MDR-AB or XDR-AB and treated with one of three antibiotics. METHODS: Enrolled were patients with MDR-AB or XDR-AB pulmonary infection based on their first sputum culture. Patients were treated empirically with carbapenems (n = 46), tigecycline (n = 25), or cefoperazone/sulbactam (cefina-SB; n = 35)...
March 14, 2017: International Journal of Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28268175/dissemination-of-carbapenem-resistant-acinetobacter-baumannii-in-patients-with-burn-injuries
#5
Saeed Shoja, Mojtaba Moosavian, Soodabeh Rostami, Abbas Farahani, Amir Peymani, Khadijeh Ahmadi, Nasim Ebrahimifard
BACKGROUND: Carbapenem-resistant Acinetobacter baumannii has emerged as an important cause of infection in burn patients. This study aimed to characterize the antimicrobial susceptibility pattern, determine the prevalence of oxacillinase and metallo-beta-lactamase (MBL) genes, and type the A. baumannii isolates obtained from burn patients. METHODS: During a 1-year period, a total of 40 nonduplicated isolates of A. baumannii were obtained from burn patients who were hospitalized in the Taleghani Burn Hospital in Ahvaz, in the southwest of Iran...
March 3, 2017: Journal of the Chinese Medical Association: JCMA
https://www.readbyqxmd.com/read/28257985/microbiological-aspects-of-fournier-s-gangrene
#6
Tuncay Yilmazlar, Baris Gulcu, Ozgen Isik, Ersin Ozturk
BACKGROUND: Fournier's gangrene (FG) is a devastating disease that is characterized by necrotizing fasciitis of the perineal, genital, or perianal region. Broad-spectrum antibiotics are the key component of its treatment. However, there is paucity of data regarding the optimal empirical antibiotherapy for FG. MATERIALS AND METHODS: Data from patients who underwent surgery for FG between January 2007 and December 2012 were retrieved from a prospectively collected departmental FG database...
April 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28241707/-the-analysis-of-pathogens-distribution-and-drug-resistance-of-bacteria-in-sputum-samples-of-pneumoconiosis-patients-combined-with-lower-respiratory-tract-infection
#7
Y Xin, N Zhang
Objective: To guide the rational use of antibiotic drugs in clinical practice for doctors by the analysis of pathogens distribution, transition and drug resistance of bacteria in sputum samples of pneumoconiosis patients combined with lower respiratory tract infection. Methods: 2 199 qualified sputum samples from 214 pneumoconiosis patients collected from January 2008 to December 2012 were examined by bacterium or fungus education. BioMerieux API and Eastern Cowin application software were used to do bacterial identification, and K-B method recommended by the NCCLS was used to take drug sensitivity tests...
January 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/28202329/efficacy-of-sulbactam-for-the-treatment-of-acinetobacter-baumannii-complex-infection-a-systematic-review-and-meta-analysis
#8
Haojun Chen, Qianqian Liu, Zhanguo Chen, Congrong Li
Meta-analyses that ignore the full programme of clinical trials may lead to a misleading interpretation. We did a comprehensive meta-analysis to explore the efficacy of sulbactam for the treatment of Acinetobacter baumannii complex infection. We searched electronic databases, including Pubmed and Embase up to April 24, 2016, to identify relevant published trials. Clinical trial registries were likewise searched to identify completed unpublished studies. Primary outcomes of interest were the clinical and microbiological efficacy and in-hospital mortality...
February 13, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/28185779/corrigendum-to-comparison-of-the-clinical-efficacy-between-tigecycline-plus-extended-infusion-imipenem-and-sulbactam-plus-imipenem-against-ventilator-associated-pneumonia-with-pneumonic-extensively-drug-resistant-acinetobacter-baumannii-bacteremia-and-correlation
#9
https://www.readbyqxmd.com/read/28150578/resistotyping-phenotyping-and-genotyping-of-new-delhi-metallo-%C3%AE-lactamase-ndm-among-gram-negative-bacilli-from-iranian-patients
#10
Dariush Shokri, Mohammad Rabbani Khorasgani, Seyed Masih Fatemi, Abbas Soleimani-Delfan
PURPOSE: The purpose of this study was investigation of New Delhi metallo-β-lactamase (NDM) production among gram negative bacilli. METHODOLOGY: Antibiogram-Resistotyping and detection of NDM in clinical isolates of Klebsiella pneumoniae, Acinetobacter baumannii and Pseudomonas aeruginosa and comparative evaluation of the diagnostic performance of three phenotypic methods for NDM detection considering PCR as gold standard were performed. Minimum Inhibitory Concentration (MIC) of antibiotics against NDM positive strains by E-test and clonal relationship analysis using Enterobacterial Repetitive Intergenic Consensus Polymerase Chain Reaction (ERIC-PCR) in these strains were determined...
February 1, 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28149487/clinical-response-and-outcome-of-pneumonia-due-to-multi-drug-resistant-acinetobacter-baumannii-in-critically-ill-patients
#11
Lida Shojaei, Mostafa Mohammadi, Mohammad-Taghi Beigmohammadi, Mahsa Doomanlou, Alireza Abdollahi, Mohammad Mehdi Feizabadi, Hossein Khalili
BACKGROUND AND OBJECTIVES: The frequency of multi-drug resistant Acinetobacter spp. infections is increasing in Iran. Considering availability of limited therapeutic options, clinical response and outcome of ventilator-associated pneumonia due to multi-drug resistant A.baumannii were evaluated in critically ill patients. MATERIALS AND METHODS: In this prospective study, 29 patients with carbapenem resistance A. baumannii ventilator-associated pneumonia were enrolled...
October 2016: Iranian Journal of Microbiology
https://www.readbyqxmd.com/read/28124957/-antimicrobial-susceptibility-and-molecular-characterization-of-multidrug-resistant-acinetobacter-baumannii-isolated-in-an-university-hospital
#12
Şahin Direkel, Ayşegül Çopur Çiçek, Alper Karagöz, Nebahat Aydoğan Ejder, Efdal Oktay, Nuran Delialioğlu, Osman Birol Özgümüş, Rıza Durmaz
Acinetobacter baumannii, an aerobic, non-motile, gram-negative bacterium is an important nosocomial pathogen which shows resistance to the most antibiotics. Carbapenems are the most commonly used antibiotics for the treatment of infections caused by this pathogen. However the emergence of resistance against carbapenems in an increasing rate generates serious problems for antimicrobial therapy. The aims of this study were to detect the antibiotic susceptibility, and the presence of blaOXA resistance genes of clinical A...
October 2016: Mikrobiyoloji Bülteni
https://www.readbyqxmd.com/read/28124956/-investigation-of-the-frequency-and-distribution-of-beta-lactamase-genes-in-the-clinical-isolates-of-acinetobacter-baumannii-collected-from-different-regions-of-turkey-a-multicenter-study
#13
Fatih Şaban Beriş, Emine Esra Budak, Duygu Gülek, Aytül Uzun, Zeynep Çizmeci, Fırat Zafer Mengeloğlu, Şahin Direkel, Yeliz Çetinkol, Yasemin Ay Altıntop, Meryem Iraz, Tuba Dal, Safiye Umut Say Coşkun, Pervin Özlem Balcı, Tuba Kayman, Ahmet Çalışkan, Yelda Yazıcı, İsmail Tosun, Ayşe Ertürk, Ayşegül Çopur Çiçek
The diversity and distribution of TEM, SHV and CTX-M type of extended-spectrum beta-lactamases (ESBLs) are important for the treatment and control of infections. Determination of ESBL genes in clinical isolates by polymerase chain reaction (PCR) and DNA sequencing can obtain useful data for their molecular epidemiology and risk. The aim of this study was to investigate the frequency of beta-lactamase genes in Acinetobacter baumannii strains isolated from different regions of Turkey. A total of 519 A.baumannii strains collected from hospitals located at 12 different provinces of Turkey (Bolu (n= 67), Tokat (n= 47), Trabzon (n= 25), Ordu (n= 27), Diyarbakır (n= 47), Niğde (n=31), Kayseri (n= 36), Ankara (n= 41), Kirikkale (n= 26), Kahramanmaraş (n= 25), Mersin (n= 40), Istanbul (n= 107)] between 2011-2012 period were included in the study...
October 2016: Mikrobiyoloji Bülteni
https://www.readbyqxmd.com/read/28052852/high-dose-ampicillin-sulbactam-combinations-combat-polymyxin-resistant-acinetobacter-baumannii-in-a-hollow-fiber-infection-model
#14
Justin R Lenhard, Nicholas M Smith, Zackery P Bulman, Xun Tao, Visanu Thamlikitkul, Beom S Shin, Roger L Nation, Jian Li, Jürgen B Bulitta, Brian T Tsuji
Acinetobacter baumannii is emerging with resistance to polymyxins. In 24-h time-kill experiments, high-dose ampicillin-sulbactam in combination with meropenem and polymyxin B achieved additivity or synergy against 10(8) CFU/ml of two clinical A. baumannii isolates resistant to all three drugs (maximum reductions, 1.6 and 3.1 logs). In a 14-day hollow-fiber infection model, high-dose ampicillin-sulbactam (8/4 g every 8 h, respectively) in combination with meropenem (2 g every 8 h) and polymyxin B (1.43 mg/kg of body weight every 12 h with loading dose) resulted in rapid (96 h) eradication of A...
March 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/27994915/intravenous-colistin-use-for-multidrug-resistant-gram-negative-infections-in-pediatric-patients
#15
Ayşe Karaaslan, Eren Çağan, Eda Kepenekli Kadayifci, Serkan Atıcı, Gülşen Akkoç, Nurhayat Yakut, Sevliya Öcal Demir, Ahmet Soysal, Mustafa Bakır
BACKGROUND: The emergence of infections due to multidrug-resistant Gram-negative bacilli (MDR-GNB) has led to the resurrection of colistin use. The data on colistin use and drug-related adverse effects in children are scarce. AIMS: In this study, we aimed to evaluate the clinical efficacy and safety of colistin use in critically ill pediatric patients. STUDY DESIGN: This study has a retrospective study design. METHODS: Sixty-one critically ill children were identified through the department's patient files archive during the period from January 2011 to November 2014...
November 2016: Balkan Medical Journal
https://www.readbyqxmd.com/read/27992816/prevalence-and-antimicrobial-susceptibility-of-acinetobacter-spp-isolated-from-meat
#16
Ana Carvalheira, Rocio Casquete, Joana Silva, Paula Teixeira
The prevalence and antibiotic resistance of Acinetobacter spp. from fifty samples of meat (chicken, turkey, beef and pork) were evaluated. Acinetobacter spp. was recovered from all samples and the clonal relatedness of 223 isolates identified to belong to the genus Acinetobacter was established by PFGE. A high genetic diversity was observed and 166 isolates from different samples, 141 representing different PFGE profiles, were further identified to the species level by rpoB gene sequencing. Thirteen distinct Acinetobacter species were identified among 156 isolates...
February 21, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/27881972/multilocus-sequence-typing-analysis-of-carbapenem-resistant-acinetobacter-baumannii-in-a-chinese-burns-institute
#17
Guangtao Huang, Supeng Yin, Yali Gong, Xia Zhao, Lingyun Zou, Bei Jiang, Zhiwei Dong, Yu Chen, Jing Chen, Shouguang Jin, Zhiqiang Yuan, Yizhi Peng
Acinetobacter baumannii is a leading pathogen responsible for nosocomial infections. The emergence of carbapenem-resistant A. baumannii (CRAB) has left few effective antibiotics for clinicians to use. To investigate the temporal evolutionary relationships among CRAB strains, we collected 248 CRAB isolates from a Chinese burns institute over 3 years. The prevalence of the OXA-23 gene was detected by polymerase chain reaction. Multilocus sequence typing was used to type the CRAB strains and eBURST was used to analyze their evolutionary relationships...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27830081/inhibitory-effect-of-lactobacillus-plantarum-and-lb-fermentum-isolated-from-the-faeces-of-healthy-infants-against-nonfermentative-bacteria-causing-nosocomial-infections
#18
M M Soltan Dallal, A Davoodabadi, M Abdi, M Hajiabdolbaghi, M K Sharifi Yazdi, M Douraghi, S M Tabatabaei Bafghi
Nosocomial infection constitutes a major public health problem worldwide. Increasing antibiotic resistance of pathogens associated with nosocomial infections has also become a major therapeutic challenge for physicians. Thus, development of alternative treatment protocols, such as the use of probiotics, matters. The aim of this research was to determine the antagonistic properties of Lactobacillus plantarum and Lb. fermentum isolated from the faeces of healthy infants against nonfermentative bacteria causing nosocomial infections...
January 2017: New Microbes and New Infections
https://www.readbyqxmd.com/read/27703329/bulgecin-a-as-a-%C3%AE-lactam-enhancer-for-carbapenem-resistant-pseudomonas-aeruginosa-and-carbapenem-resistant-acinetobacter-baumannii-clinical-isolates-containing-various-resistance-mechanisms
#19
Marion J Skalweit, Mei Li
Genetic screening of Pseudomonas aeruginosa (PSDA) and Acinetobacter baumannii (ACB) reveals genes that confer increased susceptibility to β-lactams when disrupted, suggesting novel drug targets. One such target is lytic transglycosylase. Bulgecin A (BlgA) is a natural product of Pseudomonas mesoacidophila and a lytic transglycosolase inhibitor that works synergistically with β-lactams targeting PBP3 for Enterobacteriaceae. BlgA also weakly inhibits di-Zn(2+) metallo-β-lactamases like L1 of Stenotrophomonas maltophilia...
2016: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/27688611/bloodstream-infections-in-febrile-neutropenic-patients-at-a-tertiary-cancer-institute-in-south-india-a-timeline-of-clinical-and-microbial-trends-through-the-years
#20
K Govind Babu, D Lokanatha, K C Lakshmaiah, M C Suresh Babu, Linu A Jacob, Gita R Bhat, Harsha Vardhana, Mahua Sinha, B R Vijaykumar, B G Sumati, R S Jayshree
INTRODUCTION: Febrile neutropenia (FN) is an oncological emergency. The choice of empiric therapy depends on the locally prevalent pathogens and their sensitivities, the sites of infection, and cost. The Infectious Diseases Society of America guidelines are being followed for the management of FN in India. METHODS: This is a prospective observational study conducted at a tertiary care cancer centre from September 2012 to September 2014. OBJECTIVES: The objectives of this study were as follows: (1) To review the pattern of microbial flora, susceptibility pattern, and important clinical variables among bloodstream infections in febrile neutropenic patients with solid tumors and hematological malignancies...
July 2016: Indian Journal of Medical and Paediatric Oncology
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