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https://www.readbyqxmd.com/read/28910943/-study-on-antibiotic-resistance-of-escherichia-coli-and-enterococcus-colonized-in-intestine-of-neonates-from-neonatal-intensive-care-unit
#1
X F Li, Z J Liu, X Chen, J Li, Z G Cui, B Kan, J R Ma, J H Cui
Objective: To understand the antibiotic resistance of bacteria colonized in intestine of the neonates from neonatal intensive care unit (NICU) and provide evidence to guide clinical antibiotic treatment. Methods: From May, 2014 to May, 2015, a total of 572 stool samples were collected from the neonates of NICU in our hospital. Escherichia coli and Enterococcus were detected with VITEK-2 system. Results: A total of 328 strains of E. coli and 243 strains of Enterococcus were isolated respectively in this study...
September 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28890516/molecular-characterization-of-non-carbapenemase-producing-escherichia-coli-clinical-isolates-with-reduced-carbapenem-susceptibility-from-a-thai-university-hospital
#2
Sawitree Nuramrum, Aroonwadee Chanawong, Kamonwan Lunha, Aroonlug Lulitanond, Arunnee Sangka, Chotechana Wilailuckana, Sunpetch Angkititrakul, Nicha Charoensri, Lumyai Wonglakorn, Prajuab Chaimanee, Ploenchan Chetchotisakd
Twelve non-replicate carbapenemase-negative ertapenem-non-susceptible (CNENS) Escherichia coli isolates from a Thai university hospital between 2010 and 2014 were characterized and compared with two carbapenemase-producing E. coli isolates from the same hospital. Eight unique PFGE patterns were obtained. All produced CTX-M-15 β-lactamase and two isolates co-expressed either CMY-2 cephalosporinase or increased efflux pump. Amino acid sequence analysis revealed that OmpF defect (seven isolates) due to mutations generating premature proteins or an IS1 insertion was more prevalent than in OmpC (no truncated proteins found)...
September 11, 2017: Japanese Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28876284/in-vitro-synergy-testing-of-gentamicin-an-old-drug-suggested-as-future-treatment-option-for-gonorrhoea-in-combination-with-six-other-antimicrobials-against-multidrug-resistant-neisseria-gonorrhoeae-strains
#3
Vikram Singh, Manju Bala, Aradhana Bhargava, Monika Kakran, Ravi Bhatnagar
BACKGROUND: Emergence of multidrug-resistant (MDR) and extensively drug-resistant (XDR) Neisseria gonorrhoeae is a serious concern and combination therapy has been recommended to delay the onset of treatment failures. Gentamicin, an old and inexpensive antibiotic, is recommended in combination with azithromycin for treatment failures cases with the first-line regimen as per the latest Centers for Disease Control and Prevention sexually transmitted disease treatment guidelines. However, not much literature is available on in vitro and in vivo efficacy of this combination...
August 30, 2017: Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/28874102/ertapenem-associated-neurotoxicity-in-the-spinal-cord-injury-sci-population-a-case-series
#4
Ursula C Patel, Mallory A Fowler
Context Ertapenem, a broad spectrum carbapenem antibiotic, is used often in Spinal Cord Injury (SCI) patients due to increased risk factors for multi-drug resistant (MDR) infections in this population. Neurotoxicity, specifically seizures, due to ertapenem is a known adverse effect and has been described previously. Other manifestations such as delirium and visual hallucinations have rarely been reported, and no literature, to the best of our knowledge, specifically describes these effects solely in the SCI population...
September 6, 2017: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/28867789/multiple-antibiotic-resistant-extended-spectrum-%C3%AE-lactamase-esbl-producing-enterobacteria-in-fresh-seafood
#5
Asem Sanjit Singh, Manjusha Lekshmi, Sreepriya Prakasan, Binaya Bhusan Nayak, Sanath Kumar
Members of the family Enterobacteriaceae include several human pathogens that can be acquired through contaminated food and water. In this study, the incidence of extended spectrum β-lactamase (ESBL)-producing enterobacteria was investigated in fresh seafood sold in retail markets. The ESBL-positive phenotype was detected in 169 (78.60%) isolates, with Escherichia coli being the predominant species (53), followed by Klebsiella oxytoca (27), and K. pneumoniae (23). More than 90% of the isolates were resistant to third generation cephalosporins, cefotaxime, ceftazidime, and cefpodoxime...
August 30, 2017: Microorganisms
https://www.readbyqxmd.com/read/28867170/assessment-of-pit-latrines-in-a-peri-urban-community-in-kwazulu-natal-south-africa-as-a-source-of-antibiotic-resistant-e-coli-strains
#6
Lorika S Beukes, Tracy L B King, Stefan Schmidt
Due to the frequent use of antibiotics and recurring illnesses related to multidrug-resistant (MDR) bacteria in South Africa, we determined if MDR Escherichia coli were present in pit latrine fecal sludge samples obtained from a peri-urban community in KwaZulu-Natal, South Africa. The abundance of E. coli in pit latrine samples was established using a most probable number (MPN) method with species confirmation done using biochemical tests and polymerase chain reaction (PCR). Forty-four randomly selected E. coli pit latrine isolates were further characterized, using the European committee on antimicrobial susceptibility testing (EUCAST) disk diffusion method to establish antibiotic resistance profiles for these E...
August 12, 2017: International Journal of Hygiene and Environmental Health
https://www.readbyqxmd.com/read/28856222/comparison-of-clinical-methods-for-detecting-carbapenem-resistant-enterobacteriaceae
#7
Kirsten Kost, Jumi Yi, Beverly Rogers, Robert Jerris
We evaluated detection of carbapenem-resistant Enterobacteriaceae (CRE) by routine minimal inhibitory concentration (MIC) testing, polymerase chain reaction (PCR) using Xpert® Carba-R assay, hydrolysis of ertapenem and imipenem detected by matrix-assisted laser desorption ionization time of flight mass spectrometry (MALDI-TOF MS), and hydrolysis by colorimetry using the EPI-CRE assay. Ninety-six Enterobacteriaceae isolates possessing carbapenemase genes and 29 carbapenem-susceptible Enterobacteriaceae were available for testing...
August 2017: Pract Lab Med
https://www.readbyqxmd.com/read/28848015/translational-efficacy-of-humanized-exposures-of-cefepime-ertapenem-and-levofloxacin-against-extended-spectrum-%C3%AE-lactamase-esbl-producing-e-coli-in-a-murine-complicated-urinary-tract-infection-model
#8
Marguerite L Monogue, David P Nicolau
Validated animal models are required as bridging tools to assess the utility of novel therapies and potential microbiologic outcomes. Herein, we utilized uropathogenic ESBL/non-ESBL E. coli in the neutropenic murine cUTI model with humanized exposures of cefepime, ertapenem, and levofloxacin to assess its translation value to human outcomes. Our data support the translational utility of this murine model to cUTI in man as humanized exposures produced microbiologic outcomes consistent with phenotypic profiles of the organisms...
August 28, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28840351/activity-of-temocillin-and-15-other-agents-including-fosfomycin-and-colistin-against-enterobacteriaceae-in-hong-kong
#9
Margaret Ip, Christopher K Lai, Kitty S C Fung, K-Tak Wong, Chendi Zhu, Sebastien Van de Velde, Dominic N Tsang, Peter Hawkey
Limited data are available on temocillin susceptibilities in Enterobacteriaceae from Asian countries where antimicrobial resistance is prevalent. The in vitro activities of temocillin and 15 commonly used antimicrobials against 613 non-duplicate blood (n = 310) and urine (with clinically significant bacteriuria; n = 303) isolates of Enterobacteriaceae from patients who attended 3 out of 7 clusters of public hospitals of the Hospital Authority, Hong Kong, during 2015/2016 were tested. Minimum inhibitory concentrations (MICs) were determined by Clinical and Laboratory Standards Institute (CLSI) microbroth dilution (agar dilution with fosfomycin)...
August 25, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28815094/add-on-therapy-with-ertapenem-in-infections-with-multidrug-resistant-gram-negative-bacteria-pediatric-experience
#10
Sevgen Tanır Basaranoglu, Yasemin Ozsurekci, Kubra Aykac, Kamile Oktay Arıkan, Ayse Buyukcam, Ali Bulent Cengiz, Mehmet Ceyhan, Ates Kara
Optimal therapy for infections with carbapenem resistant GNB is not well established due to the weakness of data. Patients presenting with bloodstream infections caused by multidrug resistant Klebsiella pneumoniae were treated with a combination treatment. Optimal therapy for infections with carbapenem resistant Gram-negative bacteria is a serious problem in pediatric patients. We presented three cases who were successfully treated with addition of ertapenem to the combination treatment for bacteremia with multidrug resistant Klebsiella pneumoniae...
2017: Case Reports in Infectious Diseases
https://www.readbyqxmd.com/read/28799835/occurrence-of-carbapenemase-producing-enterobacteriaceae-isolates-in-the-wildlife-first-report-of-oxa-48-in-wild-boars-in-algeria
#11
Taous Bachiri, Sofiane Bakour, Rym Lalaoui, Nadia Belkebla, Meriem Allouache, Jean Marc Rolain, Abdelaziz Touati
The aim of the present study was to screen for the presence of carbapenemase-producing Enterobacteriaceae (CPE) isolates from wild boars and Barbary macaques in Algeria. Fecal samples were collected from wild boars (n = 168) and Barbary macaques (n = 212), in Bejaia, Algeria, between September 2014 and April 2016. The isolates were identified and antimicrobial susceptibility was determined. Carbapenem resistance determinants were studied using PCR and sequencing, while clonal relatedness was performed using multilocus sequence typing (MLST)...
August 11, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/28792697/the-first-enterobacter-cloacae-co-producing-ndm-and-oxa-48-carbapenemases-and-interhospital-spread-of-oxa-48-and-ndm-producing-klebsiella-pneumoniae-in-turkey
#12
Demet Haciseyitoglu, Aysegul Dokutan, Ayham Abulaila, Fatma Erdem, Yasemin Cag, Serdar Ozer, Zerrin Aktas
BACKGROUND: The aim of this study was to investigate the occurrence of carbapenemase-producing Enterobacteriaceae. METHODS: A total of 54 carbapenem nonsusceptible Enterobacteriaceae (CRE) isolates were recovered from clinical samples sent to the Dr. Lutfi Kirdar Kartal Training and Research Hospital from the period 2011 through 2014. Forty-four isolates were Klebsiella pneumoniae (CRKP) and the other 10 were Enterobacter cloacae (CREC).The isolate identifications and antibiotic sensitivity tests were performed using a Vitek2 automatic system...
July 1, 2017: Clinical Laboratory
https://www.readbyqxmd.com/read/28767588/successful-ceftazidime-avibactam-treatment-of-mdr-kpc-positive-klebsiella-pneumoniae-infection-in-a-patient-with-traumatic-brain-injury-a-case-report
#13
Agnese Gugliandolo, Carla Caio, Maria Lina Mezzatesta, Carmela Rifici, Placido Bramanti, Stefania Stefani, Emanuela Mazzon
RATIONALE: Carbapenem-resistant Enterobacteriaceae infections are a serious health care problem, because of the high mortality. Carbapenem resistance is mainly caused by carbapenemases production, including Klebsiella pneumoniae carbapenemase (KPC). Ceftazidime-avibactam is a new cephalosporin/β-lactamase inhibitor combination for the treatment of complicated urinary, intra-abdominal infections, and nosocomial pneumonia caused by gram negative, or other serious gram-negative infections...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28759588/risk-factors-associated-with-the-development-of-seizures-among-adult-patients-treated-with-ertapenem-a-matched-case-control-study
#14
Yi-Chien Lee, Yun-Jhong Huang, Miao-Chiu Hung, Sheng-Che Hung, Chih-Yen Hsiao, Hui-Ling Cho, Li-Fen Lai, Show-Hwa Tong, Jann-Tay Wang
OBJECTIVE: The purpose of this study is to compare the characteristics of those ertapenem-treated adult patients with and without development of seizures, and identify the associated factors for the development of seizures. METHODS: This retrospective study was conducted at Chia-Yi Christian Hospital from January 2012 to December 2014. Patients developing seizures during their ertapenem treatment course were identified as case patients. Those without seizures who had received ertapenem for at least five days were considered as the pool of control patients...
2017: PloS One
https://www.readbyqxmd.com/read/28755095/neurological-adverse-effects-attributable-to-%C3%AE-lactam-antibiotics-a-literature-review
#15
REVIEW
Samuel Deshayes, Antoine Coquerel, Renaud Verdon
β-lactam antibiotics are commonly prescribed antibiotic drugs. To describe the clinical characteristics, risk markers and outcomes of β-lactam antibiotic-induced neurological adverse effects, we performed a general literature review to provide updated clinical data about the most used β-lactam antibiotics. For selected drugs in each class available in France (ticarcillin, piperacillin, temocillin, ceftazidime, cefepime, cefpirome, ceftaroline, ceftobiprole, ceftolozane, ertapenem and aztreonam), a systematic literature review was performed up to April 2016 via an electronic search on PubMed...
July 28, 2017: Drug Safety: An International Journal of Medical Toxicology and Drug Experience
https://www.readbyqxmd.com/read/28737463/prevalence-of-a-new-variant-oxa-204-and-oxa-48-carbapenemases-plasmids-encoded-in-klebsiella-pneumoniae-clinical-isolates-in-tunisia
#16
Rym Ouertani, Mariem Ben Jomàa-Jemili, Haythem Gharsa, Anne Limelette, Thomas Guillard, Lucien Brasme, Christophe de Champs, Chedly Chouchani
Carbapenemase-producing Klebsiella pneumoniae strains have emerged as a major problem for healthcare systems. The aim of this study was to determine the role and diversity of plasmids harboring carbapenemases encoding genes from a collection of K. pneumoniae isolates recovered between July 2011 and January 2012, with decreased susceptibility to carbapenems. Imipenem (IPM), ertapenem (ETP), meropenem (MEM), and doripenem (DOR) minimum inhibitory concentrations (MICs) were determined by E-test. Carbapenemase production was detected with the modified Hodge test...
July 24, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/28717993/probing-the-binding-affinities-of-imipenem-and-ertapenem-for-outer-membrane-carboxylate-channel-d1-occd1-from-p-aeruginosa-simulation-studies
#17
Kamolrat Somboon, Jitti Niramitranon, Prapasiri Pongprayoon
Pseudomonas aeruginosa is an important nosocomial human pathogen. The major difficulty in the fight against this pathogen is the relative impermeability of its outer membrane (OM). Only specific substrates can penetrate through the OM of P. aeruginosa via substrate-specific porins, so this has become one of the most problematic drug-resistant pathogens. Carbapenems are the most effective drugs for treating P. aeruginosa infections. One such carbapenem that is applied in cases of P. aeruginosa infection is imipenem (IMI), which uses outer membrane carboxylate channel D1 (OccD1) as a point of entry into the pathogen...
August 2017: Journal of Molecular Modeling
https://www.readbyqxmd.com/read/28711560/interaction-of-carbapenems-and-%C3%AE-lactamase-inhibitors-towards-ctx-m-15-and-ctx-m-15-g238c-mutant
#18
Alessia Sabatini, Fabrizia Brisdelli, Giuseppe Celenza, Francesca Marcoccia, Martina Colapietro, María M Tavío, Alessandra Piccirilli, Gianfranco Amicosante, Mariagrazia Perilli
OBJECTIVES: The aim of this study was to evaluate the role of residue 238 in CTX-M-15 and CTX-M-15(G238C) mutant with respect to carbapenems and various β-lactamase inhibitors. METHODS: A CTX-M-15(G238C) laboratory mutant was generated by site-directed mutagenesis from CTX-M-15 enzyme by replacing glycine 238 with cysteine. Thiol titration and p-chloromercuribenzoate (PCMB) inactivation assays were used to ascertain the presence of a disulfide bridge in the active site of CTX-M-15(G238C)...
September 2017: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/28708458/effectiveness-of-a-double-carbapenem-regimen-in-a-kpc-producing-klebsiella-pneumoniae-infection-in-an-immunocompromised-patient
#19
Nuria Piedra-Carrasco, Lucia Miguel, Anna Fàbrega, Belén Viñado, David Campany, Alba Mir, María Laura Fox, Benito Almirante, Nieves Larrosa, Isabel Ruiz-Camps, Juan José González-López
The progressive increase of infections produced by extensively drug-resistant carbapenemase-producing Klebsiella pneumoniae (XDR-CPKP) represents an important threat to public health. Unfortunately, optimal therapeutic options are scarce. Retrospective studies have recommended combined therapy with more than one antibiotic and, more recently, a double-carbapenem regimen has been reported to be an effective alternative therapy. Here, we describe an episode of sepsis in an immunocompromised patient after allogeneic hematopoietic stem cell transplantation, caused by an XDR-CPKP...
July 14, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/28705799/rapid-developing-empyema-by-group-f-beta-streptococcus-anginosus-group
#20
Muhammad Azharuddin, Dy Prudence, Prem Shanker Shukla, Ajay Mathur
A 43-year-old male had progressive pleuritic left-sided chest tightness with shortness of breath. He had dental caries and tenderness on palpation of the left lateral chest. Complete blood count showed leucocytosis. CT scan of the chest with pulmonary emboli protocol showed multiple pulmonary nodules and nodular pleural thickening at left posterior lateral pleura. Forty-eight hours post CTPE scan, CT scan of the chest, abdomen and pelvis displayed right lower lobe consolidation and left-sided pleural effusion with superimposed compressive atelectasis...
July 13, 2017: BMJ Case Reports
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