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https://www.readbyqxmd.com/read/28432607/impact-of-the-medical-specialty-on-knowledge-regarding-multidrug-resistant-organisms-and-strategies-toward-antimicrobial-stewardship
#1
Steffen Lebentrau, Christian Gilfrich, Malte W Vetterlein, Harald Schumacher, Philipp J Spachmann, Sabine D Brookman-May, Hans M Fritsche, Martin Schostak, Florian M Wagenlehner, Maximilian Burger, Matthias May
PURPOSE: Evidence is scarce on subject-specific knowledge of multidrug-resistant organisms and rational use of antibiotics. We aimed at evaluating attitude, perception, and knowledge about multidrug-resistant organisms (MDRO) and antibiotic prescribing among urologists versus other medical specialties. METHODS: Within the MR2-study (Multiinstitutional Reconnaissance of practice with MultiResistant bacteria), a questionnaire was conducted targeting general surgeons, internists, gynecologists, and urologists in 18 German hospitals...
April 21, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28423435/-pathogen-spectrum-of-complex-wounds-in-germany-from-war-zones
#2
Hans Joachim Riesner, Benedikt Friemert, Patricia Lang, Hans Georg Palm, Arnold J Suda
Background Treatment of the injured from war zones with wounds with multi-resistant pathogens is becoming more common in Germany, especially in German Armed Forces Hospitals. In most cases, the pre-treatment of these patients has been inadequate and they have a high load of rare pathogens. In Germany, hospitals have to evaluate these pathogens by law. The aim of this study was to review current German guidelines and data on the array of pathogens of complex trauma wounds in Germany and to compare patients with wounds and multi-resistant pathogens from war zones treated in Germany...
April 19, 2017: Zeitschrift Für Orthopädie und Unfallchirurgie
https://www.readbyqxmd.com/read/28419091/multidrug-resistant-bacteria-compensate-for-the-epistasis-between-resistances
#3
Jorge Moura de Sousa, Roberto Balbontín, Paulo Durão, Isabel Gordo
Mutations conferring resistance to antibiotics are typically costly in the absence of the drug, but bacteria can reduce this cost by acquiring compensatory mutations. Thus, the rate of acquisition of compensatory mutations and their effects are key for the maintenance and dissemination of antibiotic resistances. While compensation for single resistances has been extensively studied, compensatory evolution of multiresistant bacteria remains unexplored. Importantly, since resistance mutations often interact epistatically, compensation of multiresistant bacteria may significantly differ from that of single-resistant strains...
April 2017: PLoS Biology
https://www.readbyqxmd.com/read/28408938/bacteraemia-in-intensive-care-unit-clinical-bacteriological-and-prognostic-prospective-study
#4
Zineb Lachhab, Mohammed Frikh, Adil Maleb, Jalal Kasouati, Nouafal Doghmi, Yassine Ben Lahlou, Bouchra Belefquih, Abdelhay Lemnouer, Mostafa Elouennass
Objectives. We conducted a one-year observational study from December 2012 to November 2013 to describe the epidemiology of bacteraemia in intensive care units (ICU) of Mohammed V Military Teaching Hospital of Rabat (Morocco). Methods. The study consisted of monitoring all blood cultures coming from intensive care units and studying the bacteriological profile of positive blood cultures as well as their clinical significance. Results. During this period, a total of 46 episodes of bacteraemia occurred, which corresponds to a rate of 15,4/1000 patients...
2017: Canadian Journal of Infectious Diseases & Medical Microbiology
https://www.readbyqxmd.com/read/28407186/antimicrobial-activity-and-chemical-composition-of-brunfelsia-uniflora-flower-oleoresin-extracted-by-supercritical-carbon-dioxide
#5
L C T Thiesen, E Y Y Sugauara, V Tešević, J Glamočlija, M Soković, J E Gonçalves, Z C Gazim, G A Linde, N B Colauto
Brunfelsia genus is traditionally utilized in popular medicine due to its antibacterial and antifungal properties to name but a few. However, studies on the antimicrobial activity of Brunfelsia uniflora flower oleoresin have not been found yet. This study aimed to evaluate the chemical composition and antimicrobial activity of B. uniflora flower oleoresin obtained by supercritical carbon dioxide. Oleoresin from the plant dried flowers was obtained by carbon dioxide, and the chemical composition was analyzed by gas chromatographic-mass spectrometry...
April 13, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28397654/-infection-with-carbapenemase-producing-organisms-after-cosmetic-surgery-at-a-hospital-abroad
#6
Vigith Andrews, Anette M Hammerum, Niclas Dohrn, Barbara J Holzknecht
In Denmark, the incidence of carbapenemase-producing organisms (CPO) is increasing, and a coordinated national strategy is needed. We describe a case story of a 40-year-old woman transferred to a Danish hospital with severe complications after cosmetic surgery in the Middle East. She had an intra-abdominal infection with three different CPO, one of them co-resistant to colistin, one of the few remaining antibiotics for CPO treatment. Because of good clinical response to surgical treatment, antibiotics covering these multiresistant bacteria were not given...
March 27, 2017: Ugeskrift for Laeger
https://www.readbyqxmd.com/read/28391717/modulation-of-antibiotic-activity-by-the-hydroalcoholic-extract-from-leaves-of-caryocar-coriaceum-wittm
#7
Luís J de Lacerda Neto, A G B Ramos, M R Kerntopf, H D M Coutinho, L J Quintans-Junior, J R G S Almeida, J Ribeiro-Filho, I R A Menezes
The aim of this study was to identify the presence of tannins, phenols and flavonoids on the hydroalcoholic extract of Caryocar coriaceum leaves (HECCL) and to determine the antioxidant and antibacterial activity of this extract. The extract was tested alone (1024-1 μg/mL) or associated (MIC/8) with several antibiotics in order to identify any antibacterial activity against multiresistant bacterial strains (Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa). The existence of tannins, total phenols (901...
April 9, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28385578/rhaphiodon-echinus-nees-mart-schauer-chemical-toxicological-activity-and-increased-antibiotic-activity-of-antifungal-drug-activity-and-antibacterial
#8
Adrielle Rodrigues Costa, Juliana de Lima Silva, Kátia Regina Rodrigues Lima, Maria Ivaneide Rocha, Luiz Marivando Barros, José Galberto Martins da Costa, Aline Augusti Boligon, Jean Paul Kamdem, Joara Nalyda Pereira Carneiro, Nadghia Figueiredo Leite, Irwin Rose Alencar de Menezes, Antonia Eliene Duarte, Maria Flaviana Bezerra Morais-Braga, Henrique Douglas Melo Coutinho
The association of herbal products with standard antimicrobial drugs has recently gained more attention as a hope to overcome infectious diseases caused by multidrug-resistant microorganisms. Here, we investigated for the first time the antimicrobial (antifungal and antibacterial) activity of ethanolic and aqueous extracts of R. echinus against multiresistant strains of bacteria (E. coli, P. aeruginosa and S. aureus) and fungi (C. albicans, C. krusei and C. tropicalis), as well as potential to enhance the activity of antibiotics drugs...
April 4, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28380016/carbapenemase-producing-enterobacteriaceae-recovered-from-a-spanish-river-ecosystem
#9
Núria Piedra-Carrasco, Anna Fàbrega, William Calero-Cáceres, Thais Cornejo-Sánchez, Maryury Brown-Jaque, Alba Mir-Cros, Maite Muniesa, Juan José González-López
The increasing resistance to carbapenems is an alarming threat in the fight against multiresistant bacteria. The dissemination properties of antimicrobial resistance genes are supported by their detection in a diverse population of bacteria, including strains isolated from the environment. The objective of this study was to investigate the presence of carbapenemase-producing Enterobacteriaceae (CPE) collected from a river ecosystem in the Barcelona metropolitan area (Spain). Identification of β-lactamases and other resistance determinants was determined as was the antimicrobial susceptibility profile...
2017: PloS One
https://www.readbyqxmd.com/read/28373147/vancomycin-treatment-is-a-risk-factor-for-vancomycin-nonsusceptible-staphylococcus-capitis-sepsis-in-preterm-neonates
#10
Marine Butin, Jean-Philippe Rasigade, Fabien Subtil, Patricia Martins-Simões, Charlotte Pralong, Anne-Marie Freydière, François Vandenesch, Sylvestre Tigaud, Jean-Charles Picaud, Frédéric Laurent
OBJECTIVE: Multiresistant, vancomycin-nonsusceptible Staphylococcus capitis is an emerging cause worldwide of late-onset sepsis (LOS) in preterm neonates. The pathophysiology and risk factors for S. capitis-related LOS are poorly understood but we hypothesized that S. capitis LOS follows translocation from the gut microbiota rather than catheter invasion. The objective of this study was to investigate the risk factors of S. capitis LOS and gut colonization. METHODS: We conducted a prospective monocentric cohort study of patients hospitalized in a tertiary care unit (Lyon, France) from June 2011 to January 2012...
March 31, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28370752/insights-into-chitosan-antibiofilm-activity-against-methicillin-resistant-s-aureus
#11
E M Costa, S Silva, F K Tavaria, M M Pintado
AIMS: Chitosan is a natural compound that has been validated as a viable antimicrobial agent against Staphylococcus aureus. With this work we sought to evaluate the planktonic and sessile sensitivity of methicillin resistance S. aureus to chitosan's activity and evaluate if MRSA would be more or less sensitive to chitosan's activity than MSSA. METHODS AND RESULTS: A group comprised of reference strains and clinical multiresistant isolates of MSSA and MRSA were used...
March 29, 2017: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/28369441/a-combination-of-mecillinam-and-amoxicillin-clavulanate-can-restore-susceptibility-of-high-level-tem-1-producing-escherichia-coli-to-mecillinam
#12
André Birgy, Marine Delecourt, Guillaume Geslain, Emilie Desselas, Marion Caseris, Mélanie Magnan, Patricia Mariani-Kurkdjian, Philippe Bidet, Stéphane Bonacorsi
Objectives: Mecillinam is recommended in France as a first-line treatment for lower urinary tract infections, due to the large increase in resistance of Escherichia coli to other oral treatments, such as co-trimoxazole or fluoroquinolones, its limited impact on faecal microbiota and its stability in the presence of numerous β-lactamases. However, we recently identified several mecillinam-resistant E. coli isolates with a high-level expression penicillinase (HEP) phenotype that merit further study...
March 27, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28364441/survival-after-lung-transplantation-for-cystic-fibrosis-in-sweden%C3%A2
#13
Marita Gilljam, Ulla Nyström, Göran Dellgren, Ingrid Skog, Lennart Hansson
OBJECTIVES: In Sweden, lung transplantation has been performed in patients with end-stage lung disease since 1990. We assessed survival after lung transplantation for cystic fibrosis (CF) with focus on early mortality and outcome for patients infected with certain multiresistant bacteria, considered a relative contraindication for lung transplantation. METHODS: Review of CF and transplant databases and patient charts. The Kaplan-Meier method and log-rank test were used for survival analysis and group comparison...
March 1, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28361526/ceftolozane-tazobactam-for-the-treatment-of-ventilator-associated-infections-by-colistin-resistant-pseudomonas-aeruginosa
#14
F Álvarez Lerma, R Muñoz Bermudez, S Grau, M P Gracia Arnillas, L Sorli, L Recasens, M Mico García
The use of colistin for the treatment of multiresistant bacteria has led to the emergence of colistin-resistant strains of Gram-negative bacilli. Treatment of infections caused by these pan-drug-resistant bacteria is difficult owing to the paucity of effective antibiotics. We report two cases of ventilator-associated respiratory infection caused by pan-drug-resistant, colistin-resistant Pseudomonas aeruginosa that were successfully treated with ceftolozane-tazobactam.
March 29, 2017: Revista Española de Quimioterapia: Publicación Oficial de la Sociedad Española de Quimioterapia
https://www.readbyqxmd.com/read/28359875/seasonal-variation-of-brazilian-red-propolis-antibacterial-activity-synergistic-effect-and-phytochemical-screening
#15
Marcos da Silveira Regueira Neto, Saulo Relison Tintino, Ana Raquel Pereira da Silva, Maria do Socorro Costa, Aline Augusti Boligon, Edinardo F F Matias, Valdir de Queiroz Balbino, Irwin R A Menezes, Henrique Douglas Melo Coutinho
The aim of this study was to investigate the effect of the dry and rainy season on the antibacterial activity and chemical composition of the Brazilian red propolis. The samples were collected in rainy (RP-PER) and dry (RP-PED) seasons and analyzed by HPLC-DAD. The extracts were tested alone and in association with antibiotics against Escherichia coli, Pseudomonas aeruginosa and Staphylococcus aureus. The HPLC analysis identified luteolin and quercetin as the main compounds. Seasonal variation was observed according to concentrations of the compounds...
March 27, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28357475/iscr2-is-associated-with-the-dissemination-of-multiple-resistance-genes-among-vibrio-spp-and-pseudoalteromonas-spp-isolated-from-farmed-fish
#16
Yixiang Xu, Chao Wang, Gang Zhang, Jingjing Tian, Ying Liu, Xihui Shen, Jie Feng
58 multiresistant strains representing diverse genera were isolated from farmed fish in an aquaculture facility. Resistant rates of strains harboring ISCR2, an insertion sequence type element, were higher than those in which this element was absent. Full genome sequencing of a Vibrio isolate containing ISCR2 confirmed that it is associated with multiple resistance genes, many of which are of clinical relevance. We describe the structural variation within ISCR2, and its distribution throughout multiple diverse aquatic genera, including Vibrio, Shewenalla, Pseudoalteromonas and Psychrobacter, suggesting the potential role of ISCR2 in disseminating antibiotic resistance...
March 29, 2017: Archives of Microbiology
https://www.readbyqxmd.com/read/28351923/differences-in-integron-cassette-excision-dynamics-shape-a-trade-off-between-evolvability-and-genetic-capacitance
#17
Céline Loot, Aleksandra Nivina, Jean Cury, José Antonio Escudero, Magaly Ducos-Galand, David Bikard, Eduardo P C Rocha, Didier Mazel
Integrons ensure a rapid and "on demand" response to environmental stresses driving bacterial adaptation. They are able to capture, store, and reorder functional gene cassettes due to site-specific recombination catalyzed by their integrase. Integrons can be either sedentary and chromosomally located or mobile when they are associated with transposons and plasmids. They are respectively called sedentary chromosomal integrons (SCIs) and mobile integrons (MIs). MIs are key players in the dissemination of antibiotic resistance genes...
March 28, 2017: MBio
https://www.readbyqxmd.com/read/28348914/brincidofovir-use-after-foscarnet-crystal-nephropathy-in-a-kidney-transplant-recipient-with-multiresistant-cytomegalovirus-infection
#18
Romain Vial, Christine Zandotti, Sophie Alain, Alexandre Decourt, Noémie Jourde-Chiche, Raj Purgus, Charleric Bornet, Laurent Daniel, Valérie Moal, Tristan Legris
Background. Cytomegalovirus (CMV) antiviral drug resistance constitutes an increasing challenge in transplantation. Foscarnet is usually proposed when resistance for ganciclovir is suspected, but its use is limited by its nephrotoxicity. Case Presentation. We report a case of multiresistant CMV disease in a kidney transplant recipient. Foscarnet was prescribed after ganciclovir treatment failure in a patient with two mutations in the UL97 viral gene. Foscarnet induced biopsy-proven kidney crystal precipitation that resulted in severe acute transplant failure and nephrotic syndrome...
2017: Case Reports in Transplantation
https://www.readbyqxmd.com/read/28326851/evaluation-of-antibacterial-activity-of-the-bark-and-leaf-extracts-of-brosimum-gaudichaudii-tr%C3%A3-cul-against-multidrug-resistant-strains
#19
Joelma da Costa Borges, Michele Cezimbra Perim, Rodrigo Orlandini de Castro, Thiago Antônio de Sousa Araújo, Tadeu José da Silva Peixoto Sobrinho, Ana Carolina Oliveira da Silva, Sandra Maria Botelho Mariano, Solange Cristina Carreiro, Maria Cristina da Silva Pranchevicius
Brosimum gaudichaudii Trécul., a plant that belongs to Moraceae family, is found throughout the Brazilian Cerrado. The antimicrobial activities of ethanolic bark and leaf extracts of B. gaudichaudii were tested against multiresistant bacteria isolated from diabetic foot infections (DFIs). Antimicrobial activity of the extracts was evaluated by agar disc diffusion (DD) and broth dilution (BD) methods. By BD method, bark (53.85, 45.83%) and leaf (42.31, 50.00%) extracts contained antimicrobial activity against both gram-negative and gram-positive bacteria...
March 22, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28314077/comparative-subproteomic-analysis-of-clinically-acquired-fluoroquinolone-resistance-and-ciprofloxacin-stress-in-salmonella-typhimurium-dt104b
#20
Susana Correia, Michel Hébraud, Ingrid Chafsey, Christophe Chambon, Didier Viala, Yolanda Sáenz, José Luis Capelo, Patrícia Poeta, Gilberto Igrejas
PURPOSE: Antimicrobial resistance is a worldwide public health threat and Salmonella enterica subsp. enterica serotype Typhimurium phage type DT104B multiresistant strains with additional quinolone resistance have been responsible for global outbreaks and high mortality. Quinolone resistance is known to be multifactorial but is still far from a complete understanding. To give new insights about the resistance mechanisms involved, this work aimed to evaluate subproteome changes between a S...
March 17, 2017: Proteomics. Clinical Applications
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