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pseudomonas aeruginosa review

Marie-Odile Husson, Delphine Ley, Céline Portal, Madeleine Gottrand, Thomas Hueso, Jean-Luc Desseyn, Frédéric Gottrand
OBJECTIVES: Although n-3 long-chain polyunsaturated fatty acids (n-3 LC-PUFAs) are used widely in the treatment of chronic inflammatory diseases, their effect in infectious disease requires a particular attention. METHODS: The present article discusses their anti-inflammatory and immune properties involved in the host defence and presents a systematic review of the effects of their oral administration on the prevention and outcome of experimental and clinical infections...
October 13, 2016: Journal of Infection
Andre Arizpe, Kelly R Reveles, Shrina D Patel, Samuel L Aitken
Resistance to cephalosporins is now common among Gram-negative bacterial infections, including those caused by the Enterobacteriaceae and Pseudomonas aeruginosa, posing a major threat to public health. As resistance to the traditional drugs of choice for these infections, carbapenems, has also become increasingly common, interest in cefepime and piperacillin-tazobactam as carbapenem-sparing alternatives has increased. Additionally, the availability of the novel β-lactam-β-lactamase inhibitor combinations ceftolozane-tazobactam and ceftazidime-avibactam has added to the antimicrobial armamentarium available to treat these multidrug-resistant infections...
December 2016: Current Infectious Disease Reports
Sylvia Natalie Kłodzińska, Petra Alexandra Priemel, Thomas Rades, Hanne Mørck Nielsen
Bacterial biofilm-associated chronic sinusitis in cystic fibrosis (CF) patients caused by Pseudomonas aeruginosa infections and the lack of available treatments for such infections constitute a critical aspect of CF disease management. Currently, inhalation therapies to combat P. aeruginosa infections in CF patients are focused mainly on the delivery of antimicrobials to the lower respiratory tract, disregarding the sinuses. However, the sinuses constitute a reservoir for P. aeruginosa growth, leading to re-infection of the lungs, even after clearing an initial lung infection...
October 9, 2016: International Journal of Molecular Sciences
Rossana Rosa, Jacques Simkins, Jose F Camargo, Octavio Martinez, Lilian M Abbo
OBJECTIVES: We aimed to compare the antimicrobial susceptibility percentages in blood and urine bacterial isolates recovered from solid organ transplant (SOT) recipients with those reported in the hospital-wide antibiogram. METHODS: Retrospective review of the antimicrobial susceptibilities of bacterial isolates recovered from SOT recipients at a 1550-bed hospital over a 2-year period. Antibiograms were categorized by anatomic site (blood and urine). Percentage of bacterial susceptibilities to specific antibiotics were compared with the hospital-wide antibiogram...
August 26, 2016: Diagnostic Microbiology and Infectious Disease
Anne Lorenz, Vinay Pawar, Susanne Häussler, Siegfried Weiss
Pseudomonas aeruginosa is an important opportunistic pathogen that can cause acute respiratory infections in immunocompetent patients or chronic infections in immunocompromised individuals and in patients with cystic fibrosis. When acquiring the chronic infection state, bacteria are encapsulated within biofilm structures enabling them to withstand diverse environmental assaults, including immune reactions and antimicrobial therapy. Understanding the molecular interactions within the bacteria, as well as with the host or other bacteria, is essential for developing innovative treatment strategies...
October 12, 2016: FEBS Letters
Arianna Barbara Lovati, Marta Bottagisio, Elena de Vecchi, Enrico Gallazzi, Lorenzo Drago
The demand for joint replacement and surgical treatment is continuously increasing, thus representing a clinical burden and a cost for the healthcare system. Among several pathogens involved in implant-related infections, staphylococci account for the two-thirds of clinically isolated bacteria. Despite most of them are highly virulent microorganisms (Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa), low virulent bacteria (Staphylococcus epidermidis, Propionibacterium acnes) are responsible for delayed, low-grade infections without specific clinical signs and hardly distinguishable from aseptic prosthetic failure...
October 9, 2016: Advances in Experimental Medicine and Biology
Glenn J Rapsinski, Jina Makadia, Nitin Bhanot, Zaw Min
BACKGROUND: Gram-negative microorganisms are uncommon pathogens responsible for infective endocarditis. Pseudomonas mendocina, a Gram-negative water-borne and soil-borne bacterium, was first reported to cause human infection in 1992. Since then, it has rarely been reported as a human pathogen in the literature. We describe the first case of native valve infective endocarditis due to P. mendocina in the USA. CASE PRESENTATION: A 57-year-old white man presented with bilateral large leg ulcers, fever, and marked leukocytosis...
October 4, 2016: Journal of Medical Case Reports
Yasemin Cag, Hulya Caskurlu, Yanyan Fan, Bin Cao, Haluk Vahaboglu
By definition, the terms sepsis and septic shock refer to a potentially fatal infectious state in which the early administration of an effective antibiotic is the most significant determinant of the outcome. Because of the global spread of resistant bacteria, the efficacy of antibiotics has been severely compromised. S. pneumonia, Escherichia coli (E. coli), Klebsiella, Acinetobacter, and Pseudomonas are the predominant pathogens of sepsis and septic shock. It is common for E. coli, Klebsiella, Acinetobacter and Pseudomonas to be resistant to multiple drugs...
September 2016: Annals of Translational Medicine
J Stuart Elborn, Anne-Lise Vataire, Ayako Fukushima, Samuel Aballea, Amine Khemiri, Curtis Moore, Goran Medic, Michiel E H Hemels
PURPOSE: In Europe, 4 inhaled antibiotics (tobramycin, colistimethate sodium, aztreonam, and levofloxacin) are currently approved for the treatment of chronic Pseudomonas aeruginosa lung infection in patients with cystic fibrosis (CF). Levofloxacin inhalation solution (LIS) is the most recently approved inhaled antibiotic for adult patients with CF. A systematic literature review and Bayesian network meta-analysis (NMA) was conducted to compare the relative short-term (4 weeks) and long-term (24 weeks) outcomes of these inhaled antibiotics versus LIS...
September 28, 2016: Clinical Therapeutics
Brad S Oriel, Qi Chen, Kevin Wong, Kamal M F Itani
BACKGROUND: Selection of a pre-operative hand antisepsis agent has not been studied in relation to surgical site infection (SSI) culture data. In our hospital, we introduced an alcohol-based hand rub (ABR) in 2012 as an alternative to traditional aqueous surgical scrubs (TSS). It was the goal of this study to review any effect of this implementation on SSI pathogen characteristics. In addition, we sought to compare our SSI culture data with available National Healthcare Safety Network (NHSN) data...
September 23, 2016: Surgical Infections
Justin W Walker, William L Hennrikus
Background. Septic arthritis of the glenohumeral joint in the pediatric population (<18 yo) is not commonly described in the literature. There is a corresponding paucity of information regarding its presentation and treatment. Methods. An IRB approved review of patients treated with irrigation and debridement by the Orthopaedic Department was completed. This retrospective study includes four patients, presenting from 2005 to 2015, with septic arthritis of the shoulder. Results. The mean age (M age) at presentation was 5 years, with a range of 1 month to 15 years...
2016: International Journal of Pediatrics
V Pintado
The lack of new antibiotics for multidrug-resistant bacteria is a matter of concern in microorganisms such as Pseudomonas aeruginosa, ESBL- and carbapenemase-producing Enterobacteriaceae, Acinetobacter baumannii, methicillin-resistant Staphylococcous aureus and vancomycin-resistant Enterococcus faecium. This situation has conditioned the reuse of "old" antibiotics (colistin, fosfomycin), the use of more recent antibiotics with new indications or dosage regimens (tigecycline, meropenem) and the introduction of "new" antibiotics (β-lactams, lipoglycopeptides, oxazolidinones) that are the subject of this review...
September 2016: Revista Española de Quimioterapia: Publicación Oficial de la Sociedad Española de Quimioterapia
Emma M de Koff, Karin M de Winter – de Groot, Debby Bogaert
PURPOSE OF REVIEW: Progression of lung disease in cystic fibrosis (CF) is punctuated by Pseudomonas aeruginosa infection and recurrent pulmonary exacerbations, and is the major determinant of a patient's life expectancy. With the advent of novel deep-sequencing techniques, polymicrobial bacterial assemblages rather than single pathogens seem to be responsible for the deterioration of pulmonary function. This review summarizes recent insights into the development of the CF respiratory tract microbiome, with its determinants and its relations to clinical parameters...
November 2016: Current Opinion in Pulmonary Medicine
Mathias W Pletz, Julia Uebele, Karen Götz, Stefan Hagel, Isabelle Bekeredjian-Ding
PURPOSE OF REVIEW: Multidrug resistance of bacterial pathogens has confronted physicians around the world with the threat of inefficacy of the antibiotic regime, which is particularly important for patients with sepsis. Antibiotic resistance has revived search for alternative nonantibiotic strategies. Among them, prophylaxis by vaccination is an appealing concept. RECENT FINDINGS: This review provides a compact overview on available vaccines against community-acquired pathogens such as pneumococci (in synergy with influenza) and meningococci and provides an overview on the ongoing developments of vaccines targeting typical nosocomial pathogens such as Clostridium difficile, Staphylococcus aureus, Acintetobacter baumannii, Klebsiella pneumonia, and Pseudomonas aeruginosa...
October 2016: Current Opinion in Critical Care
Neal R Barshes, Cezarina Mindru, Chester Ashong, Maria Rodriguez-Barradas, Barbara W Trautner
We sought to identify factors associated with treatment failure and leg amputations among those patients who presented with foot osteomyelitis. Characteristics, treatments, and outcomes for all patients treated for probable or definite foot osteomyelitis (per consensus definition) between January 2011 and March 2015 were reviewed. Multivariate Cox regression models were used to identify risk factors for treatment failure (unanticipated resection of additional bone or leg amputation) and of leg amputation alone...
August 31, 2016: International Journal of Lower Extremity Wounds
J A Colmer-Hamood, N Dzvova, C Kruczek, A N Hamood
Pseudomonas aeruginosa is a Gram-negative opportunistic pathogen that causes chronic lung infection in patients with cystic fibrosis (CF) and acute systemic infections in severely burned patients and immunocompromised patients including cancer patients undergoing chemotherapy and HIV infected individuals. In response to the environmental conditions at specific infection sites, P. aeruginosa expresses certain sets of cell-associated and extracellular virulence factors that produce tissue damage. Analyzing the mechanisms that govern the production of these virulence factors in vitro requires media that closely mimic the environmental conditions within the infection sites...
2016: Progress in Molecular Biology and Translational Science
Georgia Woodfield, Mitzi Nisbet, Joe Jacob, Wing Mok, Michael R Loebinger, David M Hansell, Athol U Wells, Robert Wilson
BACKGROUND AND OBJECTIVE: Yellow nail syndrome (YNS) is a rare and poorly described disease process. In this case-control study, clinical features and findings on HRCT were compared with idiopathic bronchiectasis (IBx). METHODS: A review of all patients attending an adult bronchiectasis clinic between 2007 and 2013 identified 25 YNS patients. IBx patients were matched in a 2:1 ratio for age, duration of symptoms and gender. RESULTS: Median age of onset was 53 years...
August 23, 2016: Respirology: Official Journal of the Asian Pacific Society of Respirology
Hideharu Hagiya, Takeshi Tanaka, Kohei Takimoto, Hisao Yoshida, Norihisa Yamamoto, Yukihiro Akeda, Kazunori Tomono
BACKGROUND: With the development of invasive medical procedures, an increasing number of healthcare-associated infective endocarditis cases have been reported. In particular, non-nosocomial healthcare-associated infective endocarditis in outpatients with recent medical intervention has been increasingly identified. CASE PRESENTATION: A 66-year-old man with diabetes mellitus and a recent history of intermittent urethral self-catheterization was admitted due to a high fever...
2016: BMC Infectious Diseases
Jose A Hidalgo, Celeste M Vinluan, Nishaal Antony
There has been greater interest in developing additional antimicrobial agents due to the increasing health care costs and resistance resulting from bacterial pathogens to currently available treatment options. Gram-negative organisms including Enterobacteriaceae and Pseudomonas aeruginosa are some of the most concerning threats due to their resistance mechanisms: extended-spectrum beta-lactamase production and Klebsiella pneumoniae carbapenemase enzymes. Ceftazidime is a third-generation broad-spectrum cephalosporin with activity against P...
2016: Drug Design, Development and Therapy
Claire Keating, Armeen D Poor, Xinhua Liu, Codruta Chiuzan, Daniel Backenroth, Yuan Zhang, Emily DiMango
BACKGROUND: There is limited data on disease progression and survival in adult diagnosis cystic fibrosis (CF). This study evaluates change of lung function over time and rates of death/lung transplant in adult diagnosis CF. METHODS: The CF Foundation Patient Registry was reviewed for patients diagnosed 1993-2003. Rate of FEV1 decline was calculated up to 2010 for age groups 6-11, 12-17, and 18 and above. Kaplan Meier method was used for 10 and 15year survival rate calculations for patients diagnosed as adults...
August 10, 2016: Journal of Cystic Fibrosis: Official Journal of the European Cystic Fibrosis Society
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