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Enterococcus faecalis endocarditis

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https://www.readbyqxmd.com/read/29147662/effectiveness-of-a-lytic-phage-srg1-against-vancomycin-resistant-enterococcus-faecalis-in-compost-and-soil
#1
Sidra Rahmat Ullah, Saadia Andleeb, Taskeen Raza, Muhsin Jamal, Khalid Mehmood
Nosocomial infections caused by vancomycin-resistant Enterococcus have become a major problem. Bacteriophage therapy is proposed as a potential alternative therapy. Bacteriophages are viruses that infect bacteria and are ubiquitous in nature. Lytic bacteriophage was isolated from sewage water that infects VREF, the causative agent of endocarditis, bacteraemia, and urinary tract infections (UTIs). The phage produced clear plaques with unique clear morphology and well-defined boundaries. TEM results of phage revealed it to be 108 ± 0...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29145887/postpartum-infective-endocarditis-with-enterococcus-faecalis-in-japan-a-case-report
#2
Miku Tamura, Mitsutaka Shoji, Ken Fujita, Shohei Nakamura, Yurika Takahashi, Yurika Suzuki, Mika Asakura, Shun Kimizuka, Makiko Sasaki, Katsuya Sugawara
BACKGROUND: The clinical characteristics of infective endocarditis include the presence of predisposing cardiac disease, a history of illegal drug use, and high morbidity in the elderly. Only a few cases of the disease after delivery have been reported in the literature. We describe here a first case of enterococcal postpartum infective endocarditis without underlying disease in Japan. CASE PRESENTATION: We report the case of a 31-year-old Japanese woman with postpartum infective endocarditis by Enterococcus faecalis...
November 17, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/29059358/daptomycin
#3
Mohsen Heidary, Azar Dohkt Khosravi, Saeed Khoshnood, Mohammad Javad Nasiri, Saleh Soleimani, Mehdi Goudarzi
Daptomycin is a cyclic lipopeptide antibiotic used for the treatment of Gram-positive infections including complicated skin and skin structure infections, right-sided infective endocarditis, bacteraemia, meningitis, sepsis and urinary tract infections. Daptomycin has distinct mechanisms of action, disrupting multiple aspects of cell membrane function and inhibiting protein, DNA and RNA synthesis. Although daptomycin resistance in Gram-positive bacteria is uncommon, there are increasing reports of daptomycin resistance in Staphylococcus aureus, Enterococcus faecium and Enterococcus faecalis...
October 20, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/29050736/-complicated-transcatheter-aortic-valve-endocarditis-with-abscess-and-pseudoaneurysm-value-of-the-ecg-gated-multidetector-computed-tomography-angiography
#4
S Pichard, G Gibault-Genty, A Vienet-Legue, N Baron, R Convers-Domart, J L Georges, B Livarek
A 80-year-old man was admitted to catheterization room for an acute infero-lateral ST-elevation myocardial infarction (STEMI). Coronary angiography showed a thrombotic occlusion of the second left marginal branch, and normal other coronary arteries. The thrombo-embolic mechanism of the STEMI, and the infectious context in this patient who had had a transcatheter aortic valve implantation (TAVI) two months earlier, led us to suspect a bioprosthesis endocarditis. It was confirmed by transthoracic and transoesophageal echocardiography, which showed an aortic-mitral curtain abscess and aortic bioprosthesis vegetations, associated to Enterococcus faecalis bacteriemia...
November 2017: Annales de Cardiologie et D'angéiologie
https://www.readbyqxmd.com/read/29043145/anca-associated-pauci-immune-glomerulonephritis-in-a-patient-with-bacterial-endocarditis-a-challenging-clinical-dilemma
#5
Andrea Cervi, Dylan Kelly, Iakovina Alexopoulou, Nader Khalidi
PURPOSE: We report the case of a 59-year-old man with chronic hepatitis B and C infection presenting with acute kidney injury and enterococcus faecalis-infective endocarditis (IE). An elevated proteinase-3 (PR3)-ANCA and pauci-immune glomerulonephritis (GN) on renal biopsy were discovered, corresponding to ANCA-mediated GN. We conducted a literature review to assess the role of ANCA in IE and treatment implications. METHODS: On systematic review of the literature, we found five previous cases whereby IE caused by streptococcus and bartonella species were related to ANCA vasculitis-associated GN...
2017: Clin Nephrol Case Stud
https://www.readbyqxmd.com/read/29030859/outpatient-parenteral-antimicrobial-therapy-in-enterococcus-faecalis-infective-endocarditis
#6
M V Gil-Navarro, L E Lopez-Cortes, R Luque-Marquez, J Galvez-Acebal, A de Alarcon-Gonzalez
WHAT IS KNOWN AND OBJECTIVE: Enterococcus faecalis is the third most common causal agent of infective endocarditis. Currently, the treatment recommended is a combination of ampicillin (2 g/4 h) plus ceftriaxone (2 g/12 h), so patients must remain hospitalized for almost 6 weeks to receive the treatment. They are not generally included in outpatient parenteral antimicrobial therapy programs because 2 different electronic pumps are required to administer these 2 antibiotics. To enable the treatment of patients with E...
October 13, 2017: Journal of Clinical Pharmacy and Therapeutics
https://www.readbyqxmd.com/read/28670302/prevalence-and-genetic-diversity-of-enterococcus-faecalis-isolates-from-mineral-water-and-spring-water-in-china
#7
Lei Wei, Qingping Wu, Jumei Zhang, Weipeng Guo, Moutong Chen, Liang Xue, Juan Wang, Lianying Ma
Enterococcus faecalis is an important opportunistic pathogen which is frequently detected in mineral water and spring water for human consumption and causes human urinary tract infections, endocarditis and neonatal sepsis. The aim of this study was to determine the prevalence, virulence genes, antimicrobial resistance and genetic diversity of E. faecalis from mineral water and spring water in China. Of 314 water samples collected from January 2013 to January 2014, 48 samples (15.3%) were contaminated E. faecalis...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28659548/pathogenicity-of-enterococci
#8
REVIEW
Yasuyoshi Ike
Enterococci belong to the group of lactic acid bacteria (LAB), and inhabit the gastrointestinal tracts of a wide variety of animals from insects and to human, and the commensal organism in humans and animals. The commensal/probiotic role of enterococci has evolved through thousands of years in mutual coexistence. Enterococcus have many favorable traits that have been appreciated in food fermentation and preservation, and many serve as probiotics to promote health. While lactobacillus have been shown to confer numerous benefits on and often regarded as health bringing organisms, enterococci have become more recognized as emerging human pathogens in recent years...
2017: Nihon Saikingaku Zasshi. Japanese Journal of Bacteriology
https://www.readbyqxmd.com/read/28648168/-mitral-valve-endocarditis-diagnosed-after-panophthalmitis-with-enterococcus-faecalis
#9
Kasper Kyhl, Peter Bomholt Hansen, Elin Holm, Torkil Á Steig, Rudi Kollslíð, Shahin Gaïni
An 86-year-old man underwent cataract surgery on the left eye, but suddenly he lost his vision three days after surgery. Topical treatments for panophthalmitis were started according to international guidelines. Later, a broad-range polymerase chain reaction showed Enterococcus faecalis in corpus vitreum, and IV antiobiotic treatment was initiated. To exclude endocarditis an echocardiography was performed, and this showed mitral regurgitation with a small mobile vegetation. Uncertainty concerning a possible causality between panophthalmitis and mitral valve endocarditis remains...
June 26, 2017: Ugeskrift for Laeger
https://www.readbyqxmd.com/read/28634536/telavancin-a-novel-semisynthetic-lipoglycopeptide-agent-to-counter-the-challenge-of-resistant-gram-positive-pathogens
#10
REVIEW
Biswadeep Das, Chayna Sarkar, Debasmita Das, Amit Gupta, Arnav Kalra, Shubham Sahni
Telavancin (TD-6424), a semisynthetic lipoglycopeptide vancomycin-derivative, is a novel antimicrobial agent developed by Theravance for overcoming resistant Gram-positive bacterial infections, specifically methicillin-resistant Staphylococcus aureus (MRSA). The US Food and Drug Administration (USFDA) had approved telavancin in 2009 for the treatment of complicated skin and skin structure infections (cSSSIs) caused by Gram-positive bacteria, including MRSA (S. aureus, Streptococcus agalactiae, Streptococcus pyogenes, Streptococcus anginosus group, or Enterococcus faecalis)...
March 2017: Therapeutic Advances in Infectious Disease
https://www.readbyqxmd.com/read/28567146/virulence-factors-associated-with-enterococcus-faecalis-infective-endocarditis-a-mini-review
#11
REVIEW
Kristian T Madsen, Marianne N Skov, Sabine Gill, Michael Kemp
INTRODUCTION: The enterococci are accountable for up to 20% of all cases of infective endocarditis, with Enterococcus faecalis being the primary causative isolate. Infective endocarditis is a life-threatening infection of the endocardium that results in the formation of vegetations. Based on a literature review, this paper provides an overview of the virulence factors associated with E. faecalis infective endocarditis. Furthermore, it reports the effects of active or passive immunization against some of these involved factors...
2017: Open Microbiology Journal
https://www.readbyqxmd.com/read/28439299/substance-p-enhances-lactic-acid-and-tyramine-production-in-enterococcus-faecalis-v583-and-promotes-its-cytotoxic-effect-on-intestinal-caco-2-tc7-cells
#12
Kelly Biaggini, Valérie Borrel, Sabine Szunerits, Rabah Boukherroub, Awa N'Diaye, Arthur Zébré, Maryse Bonnin-Jusserand, Guillaume Duflos, Marc Feuilloley, Djamel Drider, Pierre Déchelotte, Nathalie Connil
BACKGROUND: Enterococcus faecalis, generally considered as a saprophytic bowel commensal, has recently emerged as an important nosocomial pathogen causing severe urinary tract infections, surgical wound infections, bacteremia, and bacterial endocarditis. This bacterium is capable of forming biofilms on various surfaces and its high level of antibiotic resistance contributes to its pathogenicity. The aim of this study was to evaluate the effect on E. faecalis, of Substance P (SP), an antimicrobial peptide that is produced in the gut and skin...
2017: Gut Pathogens
https://www.readbyqxmd.com/read/28320712/efficacy-of-telavancin-alone-and-in-combination-with-ampicillin-in-a-rat-model-of-enterococcus-faecalis-endocarditis
#13
Truc T Tran, Vincent H Tam, Barbara E Murray, Cesar A Arias, Kavindra V Singh
We first assessed telavancin (TLV) pharmacokinetics in rats after a single subcutaneous dose of 35 mg/kg of body weight. The pharmacokinetic data were used to predict a TLV dose that simulates human exposure, and the efficacy of TLV was then evaluated using a TLV dose of 21 mg/kg every 12 h against Enterococcus faecalis OG1RF (TLV MIC of 0.06 μg/ml) in a rat endocarditis model with an indwelling catheter. Therapy was given for 3 days with TLV, daptomycin (DAP), or ampicillin (AMP) monotherapy and with combinations of TLV plus AMP, AMP plus gentamicin (GEN), and AMP plus ceftriaxone (CRO); rats were sacrificed 24 h after the last dose...
June 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28293958/successful-salvage-treatment-of-native-valve-enterococcus-faecalis-infective-endocarditis-with-telavancin-two-case-reports
#14
Mickala M Thompson, Ali Hassoun
Infective endocarditis (IE) one-year mortality rates approach 40%. Here, we report two native valve Enterococcus faecalis IE cases in patients successfully treated with telavancin. An 88-year-old with mitral valve endocarditis and a penicillin allergy, initially treated with intravenous vancomycin, was switched to telavancin. A 69-year-old, who previously received amoxicillin and intravenous vancomycin for presumed enterococcal bacteraemia, was diagnosed with dual valve endocarditis for which he received telavancin...
July 2017: Infectious Diseases
https://www.readbyqxmd.com/read/28204495/early-in-vitro-development-of-daptomycin-non-susceptibility-in-high-level-aminoglycoside-resistant-enterococcus-faecalis-predicts-the-efficacy-of-the-combination-of-high-dose-daptomycin-plus-ampicillin-in-an-in-vivo-model-of-experimental-endocarditis
#15
J M Pericàs, C García-de-la-Mària, M Brunet, Y Armero, J García-González, G Casals, M Almela, E Quintana, C Falces, S Ninot, D Fuster, J Llopis, F Marco, A Moreno, J M Miró
Background: Previous studies showed development of daptomycin non-susceptibility (DNS: MIC >4 mg/L) in Enterococcus faecalis infections. However, no studies have assessed the efficacy of the combination of daptomycin/ampicillin against E. faecalis strains developing DNS in the experimental endocarditis (EE) model. Objectives: To assess the in vitro and in vivo efficacy of daptomycin at 10 mg/kg/day, daptomycin/ampicillin and ampicillin/ceftriaxone against two high-level aminoglycoside-resistant E...
June 1, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28166656/combination-of-ceftriaxone-and-ampicillin-for-the-treatment-of-enterococcal-endocarditis-a-qualitative-systematic-review
#16
REVIEW
Shaylee C Peterson, Tim T Y Lau, Mary H H Ensom
OBJECTIVE: The aim of this systematic review is to review all human trials assessing the efficacy and safety of ampicillin and ceftriaxone for enterococcal endocarditis and to discuss the clinical implications of the findings. DATA SOURCES: MEDLINE (1946-), EMBASE (1974-), CENTRAL, Google Scholar, and the World Health Organization Clinical Trials Registry Platform were searched through January 2017 using the search terms ampicillin, penicillin, ceftriaxone, cephalosporin, enterococ*, and endocarditis...
June 2017: Annals of Pharmacotherapy
https://www.readbyqxmd.com/read/28108098/comparative-efficacies-of-daptomycin-vancomycin-and-linezolid-in-experimental-enterococcal-peritonitis
#17
Toshiki Kajihara, Shigeki Nakamura, Naoki Iwanaga, Kazuhiro Oshima, Katsuji Hirano, Taiga Miyazaki, Koichi Izumikawa, Katsunori Yanagihara, Yoshitsugu Miyazaki, Noboru Hattori, Nobuoki Kohno, Shigeru Kohno, Hiroshi Mukae
Enterococci have become increasingly important pathogens for nosocomial infection (e.g. bacteremia, intra-abdominal infection, endocarditis, etc.), related to their intrinsic resistance to many antibiotics. Although the in vitro susceptibility of daptomycin (DAP) against Enterococci is well established, the Food and Drug Administration has only approved its use for complicated skin and skin structure infections induced by Enterococcus faecalis. In this study we evaluated the potential therapeutic application of DAP in a murine model of enterococcal experimental peritonitis...
January 17, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/28102784/model-systems-for-the-study-of-enterococcal-colonization-and-infection
#18
H M Sharon Goh, M H Adeline Yong, Kelvin Kian Long Chong, Kimberly A Kline
Enterococcus faecalis and Enterococcus faecium are common inhabitants of the human gastrointestinal tract, as well as frequent opportunistic pathogens. Enterococci cause a range of infections including, most frequently, infections of the urinary tract, catheterized urinary tract, bloodstream, wounds and surgical sites, and heart valves in endocarditis. Enterococcal infections are often biofilm-associated, polymicrobial in nature, and resistant to antibiotics of last resort. Understanding Enterococcal mechanisms of colonization and pathogenesis are important for identifying new ways to manage and intervene with these infections...
January 19, 2017: Virulence
https://www.readbyqxmd.com/read/28096164/pharmacodynamics-of-ceftaroline-plus-ampicillin-against-enterococcus-faecalis-in-an-in-vitro-pharmacokinetic-pharmacodynamic-model-of-simulated-endocardial-vegetations
#19
Brian J Werth, Laura M Shireman
The combination of ampicillin plus ceftaroline has been suggested to be more reliably synergistic against Enterococcus faecalis than ampicillin plus ceftriaxone using time-kill methods. The purpose of this study was to determine if this trend persists in a two-compartment model of simulated endocardial vegetations (SEV) using clinically relevant pharmacokinetic exposures of these antimicrobials. Three clinically derived E. faecalis strains were included in the study. The MICs of study antimicrobials were determined by broth microdilution...
April 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/27989071/broad-range-16s-rdna-pcr-on-heart-valves-in-infective-endocarditis
#20
Manica Müller Premru, Tatjana Lejko Zupanc, Tomislav Klokočovnik, Eva Ruzić Sabljić, Tjaša Cerar
BACKGROUND: Infective endocarditis (IE) is diagnosed by blood and/or resected valve cultivation and echocardiographic findings, as defined by the Duke criteria. Unfortunately, cultures may be negative due to prior antibiotic therapy or fastidious or slow-growing microorganisms. The study aim was to investigate the value of the broad-range polymerase chain reaction (PCR) in addition to blood and valve culture for the detection of causative microorganisms. METHODS: Between February 2012 and March 2015, valve samples from 36 patients undergoing cardiac surgery were analyzed; of these patients, 26 had a preoperative diagnosis of IE and 10 served as controls...
March 2016: Journal of Heart Valve Disease
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