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pseudomonas aeruginosa review

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https://www.readbyqxmd.com/read/28902153/bacterial-biofilm-control-by-perturbation-of-bacterial-signaling-processes
#1
REVIEW
Tim Holm Jakobsen, Tim Tolker-Nielsen, Michael Givskov
The development of effective strategies to combat biofilm infections by means of either mechanical or chemical approaches could dramatically change today's treatment procedures for the benefit of thousands of patients. Remarkably, considering the increased focus on biofilms in general, there has still not been invented and/or developed any simple, efficient and reliable methods with which to "chemically" eradicate biofilm infections. This underlines the resilience of infective agents present as biofilms and it further emphasizes the insufficiency of today's approaches used to combat chronic infections...
September 13, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28893690/new-agents-for-the-treatment-of-infections-with-gram-negative-bacteria-restoring-the-miracle-or-false-dawn
#2
REVIEW
Hugh Wright, Robert A Bonomo, David L Paterson
BACKGROUND: Antibiotic resistance in gram-negative resistance has developed without a commensurate response in the successful development of antibiotic agents, though recent progress has been made. AIMS: This review aims to provide a summary of the existing evidence on efficacy, spectrum of activity and the development of resistance of new agents that have been licensed or completed advanced clinical trials that possess activity against resistant gram-negative organisms...
September 8, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28893183/antimicrobial-resistance-in-africa-a-systematic-review
#3
Birkneh Tilahun Tadesse, Elizabeth A Ashley, Stefano Ongarello, Joshua Havumaki, Miranga Wijegoonewardena, Iveth J González, Sabine Dittrich
BACKGROUND: Antimicrobial resistance (AMR) is widely acknowledged as a global problem, yet in many parts of the world its magnitude is still not well understood. This review, using a public health focused approach, aimed to understand and describe the current status of AMR in Africa in relation to common causes of infections and drugs recommended in WHO treatment guidelines. METHODS: PubMed, EMBASE and other relevant databases were searched for recent articles (2013-2016) in accordance with the PRISMA guidelines...
September 11, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28891454/current-technology-in-the-discovery-and-development-of-novel-antibacterials
#4
Pooi Yin Chung
Bacterial resistance to antibiotics is one of the most serious challenge to global public health. The introduction of new antibiotics in clinical settings, i.e. agents that belong to a new class of antibacterials, act on new targets or has a novel mechanisms of action, may not be sufficient to cope with the emergence of multidrug-resistant pathogens such as Staphylococcus aureus, Streptococcus pneumoniae, Pseudomonas aeruginosa, Klebsiella pneumoniae, Acinetobacter baumannii and Escherichia coli, which are increasingly prevalent in healthcare settings in Europe, the USA and Asia...
September 10, 2017: Current Drug Targets
https://www.readbyqxmd.com/read/28886684/elongation-factor-p-and-the-control-of-translation-elongation
#5
Andrei Rajkovic, Michael Ibba
Elongation factor P (EF-P) binds to ribosomes requiring assistance with the formation of oligo-prolines. In order for EF-P to associate with paused ribosomes, certain tRNAs with specific d-arm residues must be present in the peptidyl site, e.g., tRNA(Pro). Once EF-P is accommodated into the ribosome and bound to Pro-tRNA(Pro), productive synthesis of the peptide bond occurs. The underlying mechanism by which EF-P facilitates this reaction seems to have entropic origins. Maximal activity of EF-P requires a posttranslational modification in Escherichia coli, Pseudomonas aeruginosa, and Bacillus subtilis...
September 8, 2017: Annual Review of Microbiology
https://www.readbyqxmd.com/read/28859703/sinus-bacteriology-in-patients-with-cystic-fibrosis-or-primary-ciliary-dyskinesia-a-systematic-review
#6
Maria E Møller, Mikkel C Alanin, Christian Grønhøj, Kasper Aanæs, Niels Høiby, Christian von Buchwald
BACKGROUND: A correlation exists between the microbial flora of the upper and lower airways in patients with cystic fibrosis (CF) or with primary ciliary dyskinesia (PCD). The sinuses can function as a bacterial reservoir where gram-negative bacteria adapt to the airways and repeatedly are aspirated to and colonize the lungs according to the theory of the united (unified) airways. Whereas the pattern of bacterial flora in the lower airways has been extensively studied, the upper airways have drawn limited attention...
September 1, 2017: American Journal of Rhinology & Allergy
https://www.readbyqxmd.com/read/28855980/pseudomonas-endocarditis-with-an-unstable-phenotype-the-challenges-of-isolate-characterization-and-carbapenem-stewardship-with-a-partial-review-of-the-literature
#7
Emil Lesho, Erik Snesrud, Yoon Kwak, Ana Ong, Rosslyn Maybank, Maryrose Laguio-Vila, Ann R Falsey, Mary Hinkle
BACKGROUND: Pseudomonas endocarditis is exceedingly rare, especially in patients without predisposing risks. We present such a case that included unexpected switches in antibacterial resistance profiles in two Pseudomonas aeruginosa (PA) strains with the same whole-genome sequence. The case also involved diagnostic and treatment challenges, such as issues with automated testing platforms, choosing the optimal aminoglycoside, minimizing unnecessary carbapenem exposure, and the need for faster, more informative laboratory tests...
2017: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/28836551/clinical-characteristics-of-bloodstream-infections-in-pediatric-acute-leukemia-a-single-center-experience-with-231-patients
#8
Jia-Feng Yao, Nan Li, Jin Jiang
BACKGROUND: Acute leukemia is the most common pediatric hematological malignancy. Bloodstream infections (BSIs) are severe complications in these patients during chemotherapy. This study aimed to explore the clinical presentation and etiology of BSI, as well as the common sites of infection, and to provide a basis for the rational regarding antibiotic use. METHODS: We performed a retrospective chart review of all pediatric patients who had acute leukemia accompanied by a BSI in our hospital from December 2011 to September 2015...
September 5, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28820151/a-literature-review-and-update-on-the-incidence-and-microbiology-spectrum-of-postcataract-surgery-endophthalmitis-over-past-two-decades-in-india
#9
REVIEW
Prajna Lalitha, Sabyasachi Sengupta, Ravilla D Ravindran, Savitri Sharma, Joveeta Joseph, Vikas Ambiya, Taraprasad Das
PURPOSE: The purpose of this study was to review the incidence and microbiology of acute postcataract surgery endophthalmitis in India. METHODS: Systematic review of English-language PubMed referenced articles on endophthalmitis in India published in the past 21 years (January 1992-December 2012), and retrospective chart review of 2 major eye care facilities in India in the past 5 years (January 2010-December 2014) were done. The incidence data were collected from articles that described "in-house" endophthalmitis and the microbiology data were collected from all articles...
August 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28815897/multidrug-resistant-enterobacteriaceae-pseudomonas-aeruginosa-and-vancomycin-resistant-enterococci-three-major-threats-to-hematopoietic-stem-cell-transplant-recipients
#10
REVIEW
Michael J Satlin, Thomas J Walsh
Hematopoietic stem cell transplant (HSCT) recipients are uniquely threatened by the emergence of multidrug-resistant (MDR) bacteria because these patients rely on immediate active antimicrobial therapy to combat bacterial infections. This review describes the epidemiology and treatment considerations for three challenging MDR bacterial pathogens in HSCT recipients: MDR Enterobacteriaceae, including extended-spectrum β-lactamase (ESBL)-producing and carbapenem-resistant Enterobacteriaceae (CRE), Pseudomonas aeruginosa, and vancomycin-resistant Enterococcus (VRE)...
August 16, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/28803496/management-of-multidrug-resistant-pseudomonas-aeruginosa-in-the-intensive-care-unit-state-of-the-art
#11
Alberto Enrico Maraolo, Marco Cascella, Silvia Corcione, Arturo Cuomo, Salvatore Nappa, Guglielmo Borgia, Francesco Giuseppe De Rosa, Ivan Gentile
Pseudomonas aeruginosa (PA) is one of the most important causes of healthcare-related infections among Gram-negative bacteria. The best therapeutic approach is controversial, especially for multidrug-resistant (MDR) and extensively drug-resistant (XDR) strains as well as in the setting of most severe patients, such as in the intensive care unit (ICU). Areas covered: This article addresses several points. First, the main microbiological aspects of PA, focusing on its wide array of resistance mechanisms. Second, risk factors and the worse outcome linked to MDR-PA infection...
August 18, 2017: Expert Review of Anti-infective Therapy
https://www.readbyqxmd.com/read/28794863/recent-advances-in-understanding-pseudomonas-aeruginosa-as-a-pathogen
#12
REVIEW
Jens Klockgether, Burkhard Tümmler
The versatile and ubiquitous Pseudomonas aeruginosa is an opportunistic pathogen causing acute and chronic infections in predisposed human subjects. Here we review recent progress in understanding P. aeruginosa population biology and virulence, its cyclic di-GMP-mediated switches of lifestyle, and its interaction with the mammalian host as well as the role of the type III and type VI secretion systems in P. aeruginosa infection.
2017: F1000Research
https://www.readbyqxmd.com/read/28780309/clinical-and-microbiological-characteristics-of-pantoea-agglomerans-infection-in-children
#13
Ayşe Büyükcam, Özlem Tuncer, Deniz Gür, Banu Sancak, Mehmet Ceyhan, Ali Bülent Cengiz, Ateş Kara
Pantoea agglomerans is an environmental Gram-negative bacterium that rarely is responsible for the infections in humans but it is often a causative factor of a number of occupational diseases. This study evaluated the clinical and microbiological characteristics and pathogenicity of P. agglomerans in children. We retrospectively reviewed microbiological test results for all children (1 month old to 18 years old) who were admitted to our pediatric hospital between January 2000 to June 2015 and had positive clinical specimen cultures for P...
August 2, 2017: Journal of Infection and Public Health
https://www.readbyqxmd.com/read/28770417/fungal-pathogens-in-cf-airways-leave-or-treat
#14
A Singh, A Ralhan, C Schwarz, D Hartl, A Hector
Chronic airway infection plays an essential role in the progress of cystic fibrosis (CF) lung disease. In the past decades, mainly bacterial pathogens, such as Pseudomonas aeruginosa, have been the focus of researchers and clinicians. However, fungi are frequently detected in CF airways and there is an increasing body of evidence that fungal pathogens might play a role in CF lung disease. Several studies have shown an association of fungi, particularly Aspergillus fumigatus and Candida albicans, with the course of lung disease in CF patients...
August 2, 2017: Mycopathologia
https://www.readbyqxmd.com/read/28758623/risk-factors-and-predictors-of-carbapenem-resistant-pseudomonas-aeruginosa-and-acinetobacter-baumannii-mortality-in-critically-ill-bacteraemic-patients-over-a-6-year-period-2010-15-antibiotics-do-matter
#15
Matthaios Papadimitriou-Olivgeris, Fotini Fligou, Anastasia Spiliopoulou, Kyriaki Koutsileou, Fevronia Kolonitsiou, Aikaterini Spyropoulou, Anastasia Zotou, Markos Marangos, Evangelos D Anastassiou, Myrto Christofidou, Iris Spiliopoulou
PURPOSE: Acinetobacter baumannii and Pseudomonas aeruginosa provoke serious infections, especially in intensive care unit (ICU) patients. METHODOLOGY: The risk factors and predictors of mortality for P. aeruginosa (n=84; 46 carbapenem-resistant) and A. baumannii (n=129; all carbapenem-resistant) bloodstream infections (BSIs) in an ICU were evaluated. Antibiotic susceptibility testing was performed using the agar disk diffusion method according to EUCAST guidelines...
July 31, 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28754426/relevance-of-multidrug-resistant-pseudomonas-aeruginosa-infections-in-cystic-fibrosis
#16
REVIEW
S Stefani, S Campana, L Cariani, V Carnovale, C Colombo, M M Lleo, V D Iula, L Minicucci, P Morelli, G Pizzamiglio, G Taccetti
Multidrug-resistant (MDR) Pseudomonas aeruginosa is an important issue for physicians who take care of patients with cystic fibrosis (CF). Here, we review the latest research on how P. aeruginosa infection causes lung function to decline and how several factors contribute to the emergence of antibiotic resistance in P. aeruginosa strains and influence the course of the infection course. However, many aspects of the practical management of patients with CF infected with MDR P. aeruginosa are still to be established...
September 2017: International Journal of Medical Microbiology: IJMM
https://www.readbyqxmd.com/read/28750947/polymyxins-for-cns-infections-pharmacology-and-neurotoxicity
#17
REVIEW
Tony Velkov, Chongshan Dai, Giuseppe D Ciccotosto, Roberto Cappai, Daniel Hoyer, Jian Li
Central nervous system (CNS) infections caused by multi-drug resistant (MDR) Gram-negative bacteria present a major health and economic burden worldwide. Due to the nearly empty antibiotic discovery pipeline, polymyxins (i.e. polymyxin B and colistin) are used as the last-line therapy against Gram-negative 'superbugs' when all other treatment modalities have failed. The treatment of CNS infections due to multi-drug resistant Gram-negative bacteria is problematic and associated with high mortality rates. Colistin shows significant efficacy for the treatment of CNS infections caused by MDR Gram-negative bacteria that are resistant to all other antibiotics...
July 25, 2017: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28745010/the-detrimental-impact-of-extracellular-bacterial-proteases-on-wound-healing
#18
Sharon Lindsay, Angela Oates, Katie Bourdillon
In addition to clinical signs of infection (e.g. inflammation, purulence and pain), a microbial count of ≥10(5) colony-forming units/g has historically been used to define wound infection. However, it is increasingly recognised that, rather than a high bioburden level alone being detrimental to wound healing, it is the virulence of the invading microorganism and the host's immune status that can affect clinical outcomes. Bacteria, such as Pseudomonas aeruginosa, Staphylococcus aureus and Staphylococcus epidermidis, have developed a range of virulence factors to help them overcome host defences and proliferate within the underlying soft tissue...
July 25, 2017: International Wound Journal
https://www.readbyqxmd.com/read/28738848/influence-of-borderline-cefepime-mic-on-the-outcome-of-cefepime-susceptible-pseudomonas-aeruginosa-bacteremia-treated-with-a-maximal-cefepime-dose-a-hospital-based-retrospective-study
#19
Ting-Yi Su, Jung-Jr Ye, Chien-Chang Yang, Ching-Tai Huang, Ju-Hsin Chia, Ming-Hsun Lee
BACKGROUND: We assessed the influence of current cefepime minimal inhibitory concentration (MIC) breakpoints and the maximal cefepime dose on treatment outcomes in patients with bacteremia caused by cefepime-susceptible Pseudomonas aeruginosa. METHODS: Adult patients hospitalized between July 2010 and June 2014 with a positive blood culture for cefepime-susceptible P. aeruginosa and receipt of cefepime as the primary therapy throughout the course were reviewed. Cefepime Etest(®) MICs and clinical outcomes for P...
July 24, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28733718/antimicrobial-resistance-in-the-next-30%C3%A2-years-humankind-bugs-and-drugs-a-visionary-approach
#20
REVIEW
Matteo Bassetti, Garyphallia Poulakou, Etienne Ruppe, Emilio Bouza, Sebastian J Van Hal, Adrian Brink
PURPOSE: To describe the current standards of care and major recent advances with regard to antimicrobial resistance (AMR) and to give a prospective overview for the next 30 years in this field. METHODS: Review of medical literature and expert opinion were used in the development of this review. RESULTS: There is undoubtedly a large clinical and public health burden associated with AMR in ICU, but it is challenging to quantify the associated excess morbidity and mortality...
July 21, 2017: Intensive Care Medicine
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