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https://www.readbyqxmd.com/read/27922754/daptomycin-use-where-is-the-truth-authors-response
#1
Daniel Echeverría-Esnal, Santiago Grau, Juan Pablo Horcajada
No abstract text is available yet for this article.
December 6, 2016: Future Microbiology
https://www.readbyqxmd.com/read/27921077/data-of-the-interacting-protein-networks-and-nucleotide-metabolism-pathways-related-to-ndk-and-nt5
#2
Dan Zhang, Wen Ma, Yu He, Gu He, Peng Zhang, Hongxia Zhu, Ningzhi Xu, Shufang Liang
The data presented in this article are related to the research article entitled "Antibacterial mechanism of daptomycin antibiotic against Staphylococcus aureus based on a quantitative bacterial proteome analysis" (Ma et al., 2016) [1]. Nucleoside diphosphate kinase (NDK) and 5'-nucleotidase (NT5) are two proteins related to bacterial growth. Here, a bioinformatics analysis was presented to explore NDK and NT5-invovled in the interacting protein network and purine metabolism.
December 2016: Data in Brief
https://www.readbyqxmd.com/read/27920984/staphylococcus-lugdunensis-endocarditis-with-destruction-of-the-ventricular-septum-and-multiple-native-valves
#3
Celestine Ishiekwene, Monica Ghitan, Margaret Kuhn-Basti, Edward Chapnick, Yu Shia Lin
Staphylococcus lugdunensis (S. lugdunensis) is a coagulase negative staphylococcus (CoNS) that can cause destructive infective endocarditis. S. lugdunensis, unlike other CoNS, should be considered to be a pathogen. We report the first case of S. lugdunensis endocarditis causing ventricular septal defect and destruction of the aortic and mitral valves. A 53-year-old male with morbid obesity and COPD presented with intermittent fever and progressive shortness of breath for 2 weeks. Chest examination showed bilateral basal crepitations, and a grade 2 systolic murmur along the right sternal border...
2017: IDCases
https://www.readbyqxmd.com/read/27917781/visualizing-a-natural-antibiotic-nanofactory
#4
T Martin Schmeing
Environmental samples are excellent sources of natural products that possess numerous kinds of therapeutic activities. One important family of natural products is the nonribosomal peptides, which includes penicillin, cyclosporin, viomycin and daptomycin (Cubicin). These peptides are made in bacteria or fungi by large enzymes called nonribosomal peptide synthetases (NRPS). NRPSs are true macromolecular machines or nanofactories, with modular assembly-line logic, a complex catalytic cycle, moving parts and many active sites...
December 1, 2016: Clinical and Investigative Medicine. Médecine Clinique et Experimentale
https://www.readbyqxmd.com/read/27917735/top-1-of-inpatients-administered-antimicrobial-agents-comprising-50-of-expenditures-a-descriptive-study-and-opportunities-for-stewardship-intervention
#5
Jennifer Dela-Pena, Luiza Kerstenetzky, Lucas Schulz, Ron Kendall, Alexander Lepak, Barry Fox
OBJECTIVE To characterize the top 1% of inpatients who contributed to the 6-month antimicrobial budget in a tertiary, academic medical center and identify cost-effective intervention opportunities targeting high-cost antimicrobial utilization. DESIGN Retrospective cohort study. PATIENTS Top 1% of the antimicrobial budget from July 1 through December 31, 2014. METHODS Patients were identified through a pharmacy billing database. Baseline characteristics were collected through a retrospective medical chart review...
December 5, 2016: Infection Control and Hospital Epidemiology
https://www.readbyqxmd.com/read/27896376/reducing-the-bottleneck-in-discovery-of-novel-antibiotics
#6
Marcus B Jones, William C Nierman, Yue Shan, Bryan C Frank, Amy Spoering, Losee Ling, Aaron Peoples, Ashley Zullo, Kim Lewis, Karen E Nelson
Most antibiotics were discovered by screening soil actinomycetes, but the efficiency of the discovery platform collapsed in the 1960s. By now, more than 3000 antibiotics have been described and most of the current discovery effort is focused on the rediscovery of known compounds, making the approach impractical. The last marketed broad-spectrum antibiotics discovered were daptomycin, linezolid, and fidaxomicin. The current state of the art in the development of new anti-infectives is a non-existent pipeline in the absence of a discovery platform...
November 28, 2016: Microbial Ecology
https://www.readbyqxmd.com/read/27892921/an-essential-role-for-bacterial-nitric-oxide-synthase-in-staphylococcus-aureus-electron-transfer-and-colonization
#7
Traci L Kinkel, Smirla Ramos-Montañez, Jasmine M Pando, Daniel V Tadeo, Erin N Strom, Stephen J Libby, Ferric C Fang
Nitric oxide (NO(•)) is a ubiquitous molecular mediator in biology. Many signalling actions of NO(•) generated by mammalian NO(•) synthase (NOS) result from targeting of the haem moiety of soluble guanylate cyclase. Some pathogenic and environmental bacteria also produce a NOS that is evolutionary related to the mammalian enzymes, but a bacterial haem-containing receptor for endogenous enzymatically generated NO(•) has not been identified previously. Here, we show that NOS of the human pathogen Staphylococcus aureus, in concert with an NO(•)-metabolizing flavohaemoprotein, regulates electron transfer by targeting haem-containing cytochrome oxidases under microaerobic conditions to maintain membrane bioenergetics...
November 28, 2016: Nature Microbiology
https://www.readbyqxmd.com/read/27891149/corynebacterium-propinquum-a-rare-cause-of-prosthetic-valve-endocarditis
#8
Umair Jangda, Ankit Upadhyay, Farshad Bagheri, Nilesh R Patel, Robert I Mendelson
Nondiphtheria Corynebacterium species are often dismissed as culture contaminants, but they have recently become increasingly recognized as pathologic organisms. We present the case of a 48-year-old male patient on chronic prednisone therapy for rheumatoid arthritis with a history of mitral valve replacement with prosthetic valve. He presented with fever, dizziness, dyspnea on exertion, intermittent chest pain, and palpitations. Transesophageal echocardiography revealed two medium-sized densities along the inner aspect of the sewing ring and one larger density along the atrial surface of the sewing ring consistent with vegetation...
2016: Case Reports in Medicine
https://www.readbyqxmd.com/read/27890418/comparative-in-vitro-activity-of-oritavancin-and-other-agents-against-methicillin-susceptible-and-methicillin-resistant-staphylococcus-aureus
#9
Debora Sweeney, Dean L Shinabarger, Francis F Arhin, Adam Belley, Greg Moeck, Chris M Pillar
Methicillin-resistant Staphylococcus aureus (MRSA) infections constitute a threat to the public health due to their prevalence and associated mortality and morbidity. Several agents have been recently approved to treat MRSA skin infections including lipoglycopeptides (dalbavancin, oritavancin, and telavancin), ceftaroline, and tedizolid. This study compared the MIC, minimum bactericidal concentration (MBC), and time-kill of these agents alongside daptomycin, linezolid, and vancomycin against MRSA (n=15); meropenem, cefazolin, and nafcillin were also included against methicillin-susceptible S...
November 12, 2016: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/27889013/methicillin-resistant-staphylococcus-aureus-infections-a-review-of-the-currently-available-treatment-options
#10
REVIEW
S M Purrello, J Garau, E Giamarellos, T Mazzei, F Pea, A Soriano, S Stefani
This review is the result of discussions that took place at the 5th MRSA Working Group Consensus Meeting and explores the possible treatment options available for different types of infections due to methicillin-resistant Staphylococcus aureus (MRSA), focusing on those antibiotics that could represent a valid alternative to vancomycin. In fact, whilst vancomycin remains a viable option, its therapy is moving towards individualised dosing. Other drugs, such as the new lipoglycopeptides (oritavancin, dalbavancin and telavancin) and fifth-generation cephalosporins (ceftaroline and ceftobiprole), are showing good in vitro potency and in vivo efficacy, especially for patients infected with micro-organisms with higher vancomycin minimum inhibitory concentrations (MICs)...
December 2016: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/27873126/resistance-to-non-glycopeptide-agents-in-serious-staphylococcus-aureus-infections
#11
REVIEW
Kyle C Molina, Vanthida Huang
The role of vancomycin in the treatment of serious Staphylococcus aureus infections, both methicillin-susceptible and methicillin-resistant, is becoming increasingly ineffective due to increasing MIC and failure. The development of reduced vancomycin susceptibility by S. aureus to glycopeptides highlights the need for clinicians to reexamine the roles of non-glycopeptide therapy. As the use of these alternative non-glycopeptides antimicrobials increases, it will become pertinent to monitor the rates of resistance...
December 2016: Current Infectious Disease Reports
https://www.readbyqxmd.com/read/27872080/classical-%C3%AE-lactamase-inhibitors-potentiate-the-activity-of-daptomycin-against-methicillin-resistant-staphylococcus-aureus-and-colistin-against-acinetobacter-baumannii
#12
George Sakoulas, Warren Rose, Andrew Berti, Joshua Olson, Jason Mungia, Poochit Nonejuie, Eleanna Sakoulas, Michael J Rybak, Joseph Pogliano, Victor Nizet
We asked whether beta-lactamase inhibitors (BLIs) increased the activity of daptomycin (DAP) against methicillin-resistant Staphylococcus aureus (MRSA), peptide antibiotic colistin (COL) against emerging Gram-negative nosocomial pathogen Acinetobacter baumannii, and human host defense peptide cathelicidin LL37 against either pathogen. DAP and LL37 kill curves were performed with or without BLIs against MRSA, vancomycin-intermediate S. aureus (VISA) and heterogeneous-VISA (hVISA). COL and LL37 kill curves were performed against A...
November 21, 2016: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/27872064/telavancin-tlv-is-active-against-experimental-aortic-valve-endocarditis-caused-by-daptomycin-resistant-dap-r-methicillin-resistant-staphylococcus-aureus-mrsa-strains
#13
Wessam Abdelhady, Arnold S Bayer, Rachelle Gonzales, Liang Li, Yan Q Xiong
We compared the efficacy of TLV and DAP in an experimental rabbit endocarditis model caused by two clinically-derived DAP-R MRSA strains. TLV treatment significantly reduced MRSA densities in all target tissues and increased the percentage of these organs rendered culture-negative as compared to untreated control or DAP-treated animals. These results demonstrate that TLV has potent in vivo efficacy against DAP-R MRSA isolates in this invasive endovascular infection model.
November 21, 2016: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/27870104/clinical-experience-with-daptomycin-in-pediatrics
#14
Katie C Namtu, Julianna C Crain, Allison F Messina, Juan A Dumois, David M Berman
INTRODUCTION: The management of Gram-positive infections has been complicated in recent years by the emergence of antimicrobial resistance, leaving fewer options for therapy. Daptomycin is a lipopeptide antibiotic used for the systemic treatment of Gram-positive infections and has a distinct mechanism of action, favorable side effect profile, and requires once daily dosing. Unfortunately, there is a paucity of safety, efficacy, and pharmacokinetic data in neonatal and pediatric patients...
November 21, 2016: Pharmacotherapy
https://www.readbyqxmd.com/read/27869427/vancomycin-resistant-enterococcus-bacteremia-in-a-child-with-acute-myeloid-leukemia-successful-treatment-with-daptomycin
#15
Ayşe Büyükcam, Eda Karadağ Öncel, Yasemin Özsürekçi, Ali B Cengiz, Barış Kuşkonmaz, Banu Sancak
Multiple-drug-resistant enterococcal infections canbe a serious problem in pediatric patients particularly concomitance with severe underlying diseases and lead to significant morbidity and mortality. The treatment options in children are limited compared with adults. We report a 3-year old-boy with acute myeloid leukemia (AML)-M7 and vancomycin-resistant enterococcus bacteremia successfully treated with daptomycin. Daptomycin may be an alternative therapy for VRE infections in children; more studies are needed for extended usage...
December 1, 2016: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/27867375/ceftriaxone-pulse-dosing-fails-to-eradicate-biofilm-like-microcolony-b-burgdorferi-persisters-which-are-sterilized-by-daptomycin-doxycycline-cefuroxime-without-pulse-dosing
#16
Jie Feng, Shuo Zhang, Wanliang Shi, Ying Zhang
Although the majority of Lyme disease patients can be cured, at least 10-20% of the patients continue to suffer from persisting symptoms such as fatigue, muscular and joint pain, and neurologic impairment after standard 2-4 week antibiotic treatment. While the causes for this post-treatment Lyme disease symptoms are unclear, one possibility is due to Borrelia burgdorferi persisters that are not effectively killed by current antibiotics such as doxycycline or amoxicillin used to treat Lyme disease. A previous study showed that four rounds of ceftriaxone pulse dosing treatment eradicated B...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27856079/in-vitro-activity-of-ceftobiprole-on-440-staphylococcus-aureus-strains-isolated-from-bronchopulmonary-infections
#17
E Hodille, L Delouere, C Bouveyron, H Meugnier, M Bes, A Tristan, F Laurent, F Vandenesch, G Lina, O Dumitrescu
OBJECTIVE: We assessed the in vitro activity of ceftobiprole on 440 Staphylococcus aureus clinical strains isolated from bronchopulmonary infections (2010-2014). METHODS: S. aureus isolates were characterized for methicillin resistance, PVL status, and clonal complex. All isolates were tested for minimal inhibitory concentrations (MIC) determination by broth microdilution method for ceftobiprole, ceftaroline fosamil, and comparator antibiotics (linezolid, tigecycline, vancomycin, and daptomycin)...
November 14, 2016: Médecine et Maladies Infectieuses
https://www.readbyqxmd.com/read/27852379/-investigation-of-molecular-epidemiology-of-methicillin-resistant-staphylococcus-aureus-in-department-of-critical-care-medicine
#18
Y X Qin, Q D Li, X Y Wan, L Y Bi, J Wang
Objective: To investigate the feature of antimicrobial resistance, homology and other molecular epidemiology of methicillin-resistant staphylococcus aureus(MRSA) in Department of Critical Care Medicine(ICU). Methods: From October 2010 to December 2011, 149 strains of MRSA were collected and identified through sputum culture of patients from 10 ICUs of 10 teaching hospitals distributed in 9 chinese central city of China. Susceptibility testing to 18 kinds of antibiotic was performed, the method of pulsed field gel electrophoresis (PFGE) was used to analyze the homology, and the technique of multilocus sequencing typing (MLST) was used to identify the sequence type (ST)...
November 8, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/27850354/716-evaluation-of-daptomycin-dosage-on-clinical-outcomes-in-vancomycin-resistant-enterococcal-infections
#19
Katie Morneau, Andrew Hunter, Qianzi Zhang, Ronald Cotton, Ian Dunne
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27850337/698-evaluation-of-clinical-effectiveness-utilizing-adjusted-body-weight-for-daptomycin-dosing
#20
Shelby Shemanski, Nick Bennett, Sarah Boyd, Mark Woods, Jeannette Ploetz, Kevin Kennedy
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
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