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Ertapenem

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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
#1
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
#2
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)...
July 12, 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
#3
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
#4
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
https://www.readbyqxmd.com/read/28700141/zero-and-second-derivative-synchronous-fluorescence-spectroscopy-for-the-quantification-of-two-non-classical-%C3%AE-lactams-in-pharmaceutical-vials-application-to-stability-studies
#5
Eman S Elzanfaly, Rania M Youssif, Nahla N Salama, Ahmed S Fayed, Hassan A M Hendawy, Maissa Y Salem
The formation of metal chelates with various ligands may lead to the production of fluorescent chelates or enhance the fluorescence of the chelating agent. This paper describes two sensitive, selective and computer-solved methods, namely, zero order (SF) and second-derivative synchronous spectrofluorimetry (SDSFS) for nano-quantitation of two carbapenems; meropenem (MP) and ertapenem (EP). The methods are based on the chelation of MP with Tb(3+) and EP with Zr(4+) in buffered organic medium at pH 4.0 to produce fluorescent chelates...
July 12, 2017: Luminescence: the Journal of Biological and Chemical Luminescence
https://www.readbyqxmd.com/read/28696238/the-sterilizing-effect-of-ertapenem-clavulanate-in-a-hollow-fiber-model-of-tuberculosis-and-implications-on-clinical-dosing
#6
Sander P van Rijn, Shashikant Srivastava, Mireille A Wessels, Dick van Soolingen, Jan-Willem C Alffenaar, Tawanda Gumbo
Carbapenems are now being explored for treatment of multi-drug resistant tuberculosis (MDR-TB), especially in conjunction with clavulanate. Clinical use is constrained by the need for multiple parenteral doses per day, and lack of knowledge of the optimal dose for sterilizing effect. Our objective was to identify the ertapenem exposure associated with optimal sterilizing effect and then design a once a day dose for clinical use. We utilized the hollow fiber system model of tuberculosis in a 28-day exposure-response study of 8 different ertapenem doses in combination with clavulanate...
July 10, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28693929/impact-of-broad-spectrum-antimicrobial-treatment-on-the-ecology-of-intestinal-flora
#7
Jen-Jia Yang, Jann-Tay Wang, Aristine Cheng, Yu-Chung Chuang, Wang-Huei Sheng
BACKGROUND: Suppression of intestinal flora by broad-spectrum antimicrobial agents facilitated risk of colonization or infection with resistant pathogen. We aimed to investigate the changes in bowel carriage of target resistant microorganisms (TRO) among patients treated with three different classes of Pseudomonas-sparing broad-spectrum antimicrobial agents (ertapenem, moxifloxacin and flomoxef) with anaerobic coverage. Risk factors for developing colonization of TRO were also analyzed...
June 28, 2017: Journal of Microbiology, Immunology, and Infection, Wei Mian Yu Gan Ran za Zhi
https://www.readbyqxmd.com/read/28687555/visual-compatibility-of-colistin-injection-with-other-antibiotics-during-simulated-y-site-administration
#8
Wasan Katip
PURPOSE: The compatibility of colistin with other antibiotics at concentrations commonly used in intensive care units was studied. METHODS: A vial of colistin was dissolved in sterile water for injection. The reconstituted solution (colistin base 75 mg/mL) was then diluted in 0.9% sodium chloride injection in polyvinyl chloride (PVC) infusion bag to give a total volume of 100 mL (colistin 1.5 mg/mL). Secondary drugs, including cefoperazone-sulbactam, ceftazidime, ertapenem, fosfomycin, imipenem-cilastatin, linezolid, meropenem, piperacillin-tazobactam, and vancomycin, were reconstituted if necessary and then diluted in 0...
July 15, 2017: American Journal of Health-system Pharmacy: AJHP
https://www.readbyqxmd.com/read/28679413/double-carbapenem-as-a-rescue-strategy-for-the-treatment-of-severe-carbapenemase-producing-klebsiella-pneumoniae-infections-a-two-center-matched-case-control-study
#9
Gennaro De Pascale, Gennaro Martucci, Luca Montini, Giovanna Panarello, Salvatore Lucio Cutuli, Daniele Di Carlo, Valentina Di Gravio, Roberta Di Stefano, Guido Capitanio, Maria Sole Vallecoccia, Piera Polidori, Teresa Spanu, Antonio Arcadipane, Massimo Antonelli
BACKGROUND: Recent reports have suggested the efficacy of a double carbapenem (DC) combination, including ertapenem, for the treatment of carbapenem-resistant Klebsiella pneumoniae (CR-Kp) infections. We aimed to evaluate the clinical impact of such a regimen in critically ill patients. METHODS: This case-control (1:2), observational, two-center study involved critically ill adults with a microbiologically documented CR-Kp invasive infection treated with the DC regimen matched with those receiving a standard treatment (ST) (i...
July 5, 2017: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/28676284/incx3-plasmid-mediated-occurrence-of-blandm-4-within-escherichia-coli-st448-from-india
#10
Nargis Alom Choudhury, Deepjyoti Paul, Atanu Chakravarty, Amitabha Bhattacharjee, Debadatta Dhar Chanda
This study was designed to investigate blaNDM-4 encoded within IncX3 type plasmid and their copy number alteration under carbapenem pressure within clinical isolates of Escherichia coli. NDM-4 producing E. coli isolates were collected from an Indian hospital and transferability as well as plasmid incompatibility typing was determined. Genetic environment and antibiogram profiling was carried out. Quantitative Real Time PCR was done to determine the change in plasmid copy number under concentration gradient carbapenem stress...
July 1, 2017: Journal of Infection and Public Health
https://www.readbyqxmd.com/read/28661313/acute-appendicitis-after-kidney-transplantation-experience-at-a-tertiary-care-hospital-in-mexico-city
#11
Edgar Ortiz-Brizuela, Alejandro Quiroz-Compeán, Mario Vilatobá-Chapa, Josefina Alberú-Gómez
OBJECTIVES: Here, we describe the presentation, treatment, and outcomes of acute appendicitis in kidney transplant recipients at a tertiary care hospital in Mexico City. MATERIALS AND METHODS: We conducted a retrospective case series study at a tertiary care hospital in Mexico City from January 2000 to January 2015. RESULTS: During our study period, 1186 patients received a kidney transplant; among these patients, we identified 10 cases of acute appendicitis (0...
June 28, 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/28660131/successful-treatment-of-multidrug-resistant-klebsiella-pneumoniae-using-dual-carbapenem-regimen-in-immunocompromised-patient
#12
Wasim S El Nekidy, Mohamed Y Mooty, Nizar Attallah, Lyssette Cardona, Maria Fernanda Bonilla, Islam M Ghazi
This report describes a longitudinal case of immunocompromised patient post kidney transplant who was admitted to our institution repeatedly for treatment of various infections caused by multi-drug resistant Klebsiella pneumoniae. The patient was successfully treated with a combination of ertapenem/meropenem on multiple occasions despite the elevated MICs. Our observations corroborate previous preclinical studies and case reports showing the efficacy of double carbapenem regimens against resistant Enterobacteriaceae...
2017: IDCases
https://www.readbyqxmd.com/read/28652947/ertapenem-induced-thrombocytosis
#13
Ramon A Docobo, Sumera Bukhari, Zulfiqar Qutrio Baloch
Ertapenem is a β-lactam antibiotic that has a broad spectrum of anti-microbial coverage. Hematological adverse events like thrombocytosis, neutropenia, and neutropenia are infrequent. Here we report a rare case of drug-induced thrombocytosis in a 68-year-old female, who was treated with ertapenem for the diagnosis of complicated abdominal infection. This case emphasizes that any patient with thrombocytosis should be assessed with a careful and detailed history with consideration for possible drug side effects...
May 19, 2017: Curēus
https://www.readbyqxmd.com/read/28648647/in-vitro-antibacterial-activity-of-fosfomycin-combined-with-other-antimicrobials-against-kpc-producing-klebsiella-pneumoniae
#14
Wei Yu, Ping Shen, Zhang Bao, Kai Zhou, Beiwen Zheng, Jinru Ji, Lihua Guo, Chen Huang, Yonghong Xiao
The increasing prevalence of KPC-producing Klebsiella pneumoniae (KPC-Kp) strains poses a serious threat to patients. Therapeutic options are limited to colistin, fosfomycin, tigecycline and selected aminoglycosides. Although the combination of fosfomycin with other antimicrobials is recommended, data regarding possible synergistic activity in vitro and in vivo appear inconsistent. Here we report that five drug combinations (fosfomycin combined with imipenem, ertapenem, tigecycline, colistin or amikacin) had a significant additive effect against 136 KPC-Kp strains in an in vitro chequerboard assay...
June 22, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28648181/a-highly-sensitive-carbapenemase-assay-using-laser-desorption-ionization-mass-spectrometry-based-on-a-parylene-matrix-chip
#15
Jong-Min Park, Jo-Il Kim, Joo-Yoon Noh, Mira Kim, Min-Jung Kang, Jae-Chul Pyun
A quantitative carbapenemase assay was developed using laser desorption/ionization mass spectrometry (LDI-MS) based on a parylene-matrix chip. As a first step, the reproducibility (spot-to-spot, shot-to-shot, and day-to-day) of LDI-MS based on a parylene-matrix chip and the quantification ranges for four carbapenem antibiotics (doripenem, ertapenem, imipenem, and meropenem) were determined. A carbapenem-susceptibility test was performed using the four carbapenems and 51 bacterial strains that displayed (1) carbapenem resistance with carbapenemase, (2) carbapenem resistance without carbapenemase, or (3) carbapenem susceptibility...
September 2017: Enzyme and Microbial Technology
https://www.readbyqxmd.com/read/28627952/clinical-efficacy-of-piperacillin-tazobactam-in-the-treatment-of-complicated-skin-and-soft-tissue-infections
#16
Kohei Takimoto, Qianzhi Wang, Daisuke Suzuki, Mitsuya Katayama, Yoshiro Hayashi
Complicated skin and soft tissue infections (cSSTIs) are skin and soft tissue infections (SSTIs) that involve deep soft tissue. cSSTIs often require surgical intervention and/or hospitalization. cSSTIs are associated with significant mortality and morbidity, and carry a significant burden on health care systems. Piperacillin/tazobactam has been regarded as a standard treatment for cSSTIs because of its antibiotic spectrum, safety and clinical efficacy. Several antibiotics, as compared to piperacillin/tazobactam, have been evaluated in the treatment of cSSTIs...
July 2017: Expert Opinion on Pharmacotherapy
https://www.readbyqxmd.com/read/28619105/patterns-of-antimicrobial-resistance-in-intensive-care-unit-patients-a-study-in-vietnam
#17
Giang M Tran, Thao P Ho-Le, Duc T Ha, Chau H Tran-Nguyen, Tuyet S M Nguyen, Thao T N Pham, Tuyet A Nguyen, Dung A Nguyen, Hoa Q Hoang, Ngoc V Tran, Tuan V Nguyen
BACKGROUND: Antimicrobial resistance has emerged as a major concern in developing countries. The present study sought to define the pattern of antimicrobial resistance in ICU patients with ventilator-associated pneumonia. METHODS: Between November 2014 and September 2015, we enrolled 220 patients (average age ~ 71 yr) who were admitted to ICU in a major tertiary hospital in Ho Chi Minh City, Vietnam. Data concerning demographic characteristics and clinical history were collected from each patient...
June 15, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28616056/ertapenem-for-multiple-%C3%AE-lactamases-producing-gram-negative-bacteria-causing-urinary-tract-infections-in-hiv-patients
#18
Marimuthu Ragavan Ramesh Kumar, Narasingam Arunagirinathan, Ramachandran Vignesh, Pachamuthu Balakrishnan, Suniti Solomon, Solomon S Sunil
No abstract text is available yet for this article.
2017: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
https://www.readbyqxmd.com/read/28605515/fri-2-carbapenemase-producing-enterobacter-cloacae-complex-in-the-uk
#19
Danièle Meunier, Jacqueline Findlay, Michel Doumith, Daniel Godoy, Claire Perry, Rachel Pike, Firza Gronthoud, Theresa Shryane, Laurent Poirel, William Welfare, Neil Woodford, Katie L Hopkins
Objectives: Detection of rarer carbapenemases is challenging, as it requires molecular assays with comprehensive coverage or the use of phenotypic methods for the detection of carbapenemase activity. We describe a new class A carbapenemase, FRI-2, in an Enterobacter cloacae complex isolate following implementation of an in-house multiplex PCR for the detection of 'rare' class A carbapenemases. Methods: MICs were determined by agar dilution. A carbapenem-resistant E...
June 10, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28592240/randomized-controlled-trial-of-piperacillin-tazobactam-cefepime-and-ertapenem-for-the-treatment-of-urinary-tract-infection-caused-by-extended-spectrum-beta-lactamase-producing-escherichia-coli
#20
Yu Bin Seo, Jacob Lee, Young Keun Kim, Seung Soon Lee, Jeong-A Lee, Hyo Youl Kim, Young Uh, Han-Sung Kim, Wonkeun Song
BACKGROUND: Due to limited therapeutic options, the spread of extended-spectrum beta-lactamases (ESBLs) have become a major public health concern. We conducted a prospective, randomized, open-label comparison of the therapeutic efficacy of piperacillin-tazobactam (PTZ), cefepime, and ertapenem in febrile nosocomial urinary tract infection with ESBL-producing Escherichia coli (ESBL-EC). METHODS: This study was conducted at three university hospitals between January 2013 and August 2015...
June 7, 2017: BMC Infectious Diseases
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