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https://www.readbyqxmd.com/read/28081148/characterization-of-multi-drug-resistant-enterococcus-faecalis-isolated-from-cephalic-recording-chambers-in-research-macaques-macaca-spp
#1
Stephanie E Woods, Mia T Lieberman, Francois Lebreton, Elise Trowel, César de la Fuente-Núñez, Joanne Dzink-Fox, Michael S Gilmore, James G Fox
Nonhuman primates are commonly used for cognitive neuroscience research and often surgically implanted with cephalic recording chambers for electrophysiological recording. Aerobic bacterial cultures from 25 macaques identified 72 bacterial isolates, including 15 Enterococcus faecalis isolates. The E. faecalis isolates displayed multi-drug resistant phenotypes, with resistance to ciprofloxacin, enrofloxacin, trimethoprim-sulfamethoxazole, tetracycline, chloramphenicol, bacitracin, and erythromycin, as well as high-level aminoglycoside resistance...
2017: PloS One
https://www.readbyqxmd.com/read/28076593/brachial-insertion-of-fully-implantable-venous-catheters-for-chemotherapy-complications-and-quality-of-life-assessment-in-35-patients
#2
Igor Yoshio Imagawa Fonseca, Mariana Krutman, Kenji Nishinari, Guilherme Yazbek, Marcelo Passos Teivelis, Guilherme André Zottele Bomfim, Rafael Noronha Cavalcante, Nelson Wolosker
Objective: To prospectively evaluate the perioperative safety, early complications and satisfaction of patients who underwent the implantation of central catheters peripherally inserted via basilic vein. Methods: Thirty-five consecutive patients with active oncologic disease requiring chemotherapy were prospectively followed up after undergoing peripheral implantation of indwelling venous catheters, between November 2013 and June 2014. The procedures were performed in the operating room by the same team of three vascular surgeons...
October 2016: Einstein
https://www.readbyqxmd.com/read/28069496/probiotic-e-coli-nissle-1917-biofilms-on-silicone-substrates-for-bacterial-interference-against-pathogen-colonization
#3
Quan Chen, Zhiling Zhu, Jun Wang, Analette I Lopez, Siheng Li, Amit Kumar, Fei Yu, Haoqing Chen, Chengzhi Cai, Lijuan Zhang
: Bacterial interference is an alternative strategy to fight against device-associated bacterial infections. Pursuing this strategy, a non-pathogenic bacterial biofilm is used as a live, protective barrier to fence off pathogen colonization. In this work, biofilms formed by probiotic Escherichia coli strain Nissle 1917 (EcN) are investigated for their potential for long-term bacterial interference against infections associated with silicone-based urinary catheters and indwelling catheters used in the digestive system, such as feeding tubes and voice prostheses...
January 6, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28068356/mrsa-prevalence-and-risk-factors-among-health-personnel-and-residents-in-nursing-homes-in-hamburg-germany-a-cross-sectional-study
#4
Claudia Peters, Madeleine Dulon, Olaf Kleinmüller, Albert Nienhaus, Anja Schablon
INTRODUCTION: The increase of multidrug-resistant organisms in hospitals causes problems in nursing homes. Staff in geriatric nursing homes are at greater risk of MRSA colonisation. The aim of the study was to describe the occupational exposure to MRSA among health personnel in geriatric nursing. METHODS: A point prevalence survey was conducted among health personnel and residents of geriatric nursing homes within the greater Hamburg district. Nasal swabs and, where relevant, wound swabs were collected for the screening survey...
2017: PloS One
https://www.readbyqxmd.com/read/28056743/antimicrobial-peptides-for-the-control-of-biofilm-formation
#5
Mercedes González Moreno, Lisa Lombardi, Mariagrazia Di Luca
Antimicrobial peptides (AMPs) are an abundant and varied group of molecules recognized as the most ancient components of the innate immune system. They are found in a wide group of organisms including bacteria, plants and animals as a defense mechanism against different kinds of infectious pathogens. Over the past two decades, a fast-growing number of AMPs have been identified/designed and their wide-spectrum antimicrobial activity has been deeply investigated. In recent years, there has been an increasing interest in the use of AMPs as alternative anti-biofilm molecules for the control of biofilm-related infections...
January 5, 2017: Current Topics in Medicinal Chemistry
https://www.readbyqxmd.com/read/28045921/peripheral-venous-catheter-related-adverse-events-evaluation-from-a-multicentre-epidemiological-study-in-france-the-catheval-project
#6
Katiuska Miliani, Raphaël Taravella, Denis Thillard, Valérie Chauvin, Emmanuelle Martin, Stéphanie Edouard, Pascal Astagneau
INTRODUCTION: Peripheral venous catheters (PVC) are medical devices most frequently used during hospital care. Although the frequency of specific PVC-related adverse events (PVCAEs) has been reported, the global risk related to the insertion of this device is poorly estimated. The aim of this study is to determine the incidence of PVCAEs during the indwell time, after catheter removal, and to identify practice-mirroring risk factors. METHODS: A prospective observational study was conducted as a part of a research project, called CATHEVAL, in one surgery ward and four medicine wards from three public general tertiary care hospitals in Northern France that were invited to participate between June-2013 and June-2014...
2017: PloS One
https://www.readbyqxmd.com/read/28003353/staphylococcus-aureus-in-the-icu-are-these-golden-grapes-ripe-for-a-new-approach
#7
EDITORIAL
Georgia R Sampedro, Juliane Bubeck Wardenburg
Staphylococcus aureus is leading cause of infection in the setting of critical illness and injury. This pathogen causes life-threatening infection in otherwise healthy individuals, and also complicates the clinical course of patients requiring intensive care as a result of their primary medical or surgical disease processes. S. aureus infection in the intensive care unit (ICU) most commonly manifests as sepsis, ventilator-associated pneumonia, and infection of surgical sites and indwelling medical devices. With the epidemic spread of methicillin-resistant S...
December 21, 2016: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/27992529/exposure-of-bacterial-biofilms-to-electrical-current-leads-to-cell-death-mediated-in-part-by-reactive-oxygen-species
#8
Cassandra L Brinkman, Suzannah M Schmidt-Malan, Melissa J Karau, Kerryl Greenwood-Quaintance, Daniel J Hassett, Jayawant N Mandrekar, Robin Patel
Bacterial biofilms may form on indwelling medical devices such as prosthetic joints, heart valves and catheters, causing challenging-to-treat infections. We have previously described the 'electricidal effect', in which bacterial biofilms are decreased following exposure to direct electrical current. Herein, we sought to determine if the decreased bacterial quantities are due to detachment of biofilms or cell death and to investigate the role that reactive oxygen species (ROS) play in the observed effect. Using confocal and electron microscopy and flow cytometry, we found that direct current (DC) leads to cell death and changes in the architecture of biofilms formed by Gram-positive and Gram-negative bacteria...
2016: PloS One
https://www.readbyqxmd.com/read/27959782/crispr-based-genome-editing-of-clinical-important-e-coli-se15-isolated-from-indwelling-urinary-catheters-of-patients
#9
Sangrim Kang, Jinsoo Kim, Junho K Hur, Sang-Seob Lee
Urinary tract infections are clinically important problems that lead to serious morbidity and mortality, and indwelling urinary catheters are a major factor of UTIs. In this study, we applied clustered regularly interspaced short palindromic repeat-Cas9 mediated genome editing to generate luxS mutant strains from clinical isolate of E. coli SE15, which is one of major pathogens, and can cause colonization and biofilm formation in the catheter. A major regulatory pathway of such biofilm formation on medical devices is the quorum sensing mechanism via small molecule autoinducer-2 synthesized by LuxS enzyme...
December 12, 2016: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/27922945/staphylococcal-biofilms-and-immune-polarization-during-prosthetic-joint-infection
#10
Casey M Gries, Tammy Kielian
Staphylococcal species are a leading cause of community- and nosocomial-acquired infections, where the placement of foreign materials increases infection risk. Indwelling medical devices and prosthetic implants are targets for staphylococcal cell adherence and biofilm formation. Biofilm products actively suppress proinflammatory microbicidal responses, as evident by macrophage polarization toward an anti-inflammatory phenotype and the recruitment of myeloid-derived suppressor cells. With the rise in prosthetic hip and knee arthroplasty procedures, together with the recalcitrance of biofilm infections to antibiotic therapy, it is imperative to better understand the mechanism of crosstalk between biofilm-associated bacteria and host immune cells...
February 2017: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/27900923/-the-infection-risk-scan-in-clinical-practice-improving-infection-prevention-and-antibiotic-use-through-transparency
#11
I Willemsen, J A J W Kluytmans
OBJECTIVE: The increase in Highly Resistant Micro-Organisms (HRMO) in hospitals and nursing homes requires an intensification of infection prevention measures. This paper describes a new, standardised approach to infection prevention and monitoring of antibiotic use. DESIGN: Cross-sectional, observational study. METHOD: The Infection RIsk Scan (IRIS) measures a number of objectifiable variables in the field of infection prevention, including the dissemination of HRMO, the use of antibiotics and indwelling medical devices, environmental contamination, hand hygiene and personal hygiene of healthcare workers, and various infection control preconditions...
2016: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/27884325/violet-405-nm-light-a-novel-therapeutic-agent-against-common-pathogenic-bacteria
#12
Mitchell D Barneck, Nathaniel L R Rhodes, Martin de la Presa, James P Allen, Ahrash E Poursaid, Maziar M Nourian, Matthew A Firpo, John T Langell
BACKGROUND: The increasing incidence of healthcare-associated infections (HAIs) and multidrug-resistant organisms demonstrate the need for innovative technological solutions. Staphylococcus aureus, Streptococcus pneumonia, Escherichia coli, and Pseudomonas aeruginosa in particular are common pathogens responsible for a large percentage of indwelling medical device-associated clinical infections. The bactericidal effects of visible light sterilization (VLS) using 405-nm is one potential therapeutic under investigation...
December 2016: Journal of Surgical Research
https://www.readbyqxmd.com/read/27879557/chryseobacterium-indologenes-associated-pneumonia-in-two-neonates
#13
Shruti Radera, Shalini Tripathi, Jyotsna Agarwal, Mala Kumar
Chryseobacterium species are widely distributed in nature and can rarely cause human infection. Few cases reported in hospitalized patients are in immunocompromised hosts with indwelling devices and associated co-morbidities. Chryseobacterium species are usually multi-drug resistant. We describe two cases of C. indologenes associated-pneumonia in neonates and review the published infant cases.
November 22, 2016: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/27870871/functional-genomic-analysis-of-candida-albicans-adherence-reveals-a-key-role-for-the-arp2-3-complex-in-cell-wall-remodelling-and-biofilm-formation
#14
Jason A Lee, Nicole Robbins, Jinglin L Xie, Troy Ketela, Leah E Cowen
Fungal biofilms are complex, structured communities that can form on surfaces such as catheters and other indwelling medical devices. Biofilms are of particular concern with Candida albicans, one of the leading opportunistic fungal pathogens of humans. C. albicans biofilms include yeast and filamentous cells that are surrounded by an extracellular matrix, and they are intrinsically resistant to antifungal drugs such that resolving biofilm infections often requires surgery to remove the contaminated device. C...
November 2016: PLoS Genetics
https://www.readbyqxmd.com/read/27849513/venous-thoracic-outlet-syndrome-the-role-of-early-rib-resection
#15
Vienna G Katana, Jeffrey S Weiss
The upper extremity is an uncommon site for deep vein thrombosis and, although most of these thrombotic events are secondary to catheters or indwelling devices, venous thoracic outlet syndrome is an important cause of primary thrombosis. Young, active, otherwise healthy individuals that engage in repetitive upper extremity exercises, such as those required by a military vocation, may be at an increased risk. We present the case of a Naval Officer diagnosed with venous thoracic outlet syndrome whereby a multimodal approach with early surgical decompression was used...
November 2016: Military Medicine
https://www.readbyqxmd.com/read/27821454/sustained-nitric-oxide-releasing-nanoparticles-interfere-with-methicillin-resistant-staphylococcus-aureus-adhesion-and-biofilm-formation-in-a-rat-central-venous-catheter-model
#16
Mircea Radu Mihu, Vitor Cabral, Rodney Pattabhi, Moses T Tar, Kelvin P Davies, Adam J Friedman, Luis R Martinez, Joshua D Nosanchuk
Staphylococcus aureus is frequently isolated in the setting of infections of indwelling medical devices, which are mediated by the microbe's ability to form biofilms on a variety of surfaces. Biofilm-embedded bacteria are more resistant to antimicrobial agents than their planktonic counterparts and often cause chronic infections and sepsis, particularly in patients with prolonged hospitalizations. In this study, we demonstrate that sustained nitric oxide-releasing nanoparticles (NO-np) interfere with S. aureus adhesion and prevent biofilm formation on a rat central venous catheter (CVC) model of infection...
January 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/27805758/exploring-relationships-of-catheter-associated-urinary-tract-infection-and-blockage-in-people-with-long-term-indwelling-urinary-catheters
#17
Mary H Wilde, James M McMahon, Hugh F Crean, Judith Brasch
AIMS: The aims were to describe and explore relationships among catheter problems in long-term indwelling urinary catheter users, including excess health care utilization for treating catheter problems. BACKGROUND: Long-term urinary catheter users experience repeated problems with catheter-related urinary tract infection (CAUTI) and blockage of the device, yet little has been reported of the patterns and relationships among relevant catheter variables. DESIGN: Secondary data analysis was conducted from a sample in a randomized clinical trial, using data from the entire sample of 202 persons over 12 months' participation...
November 2, 2016: Journal of Clinical Nursing
https://www.readbyqxmd.com/read/27778373/urinary-incontinence-but-not-fecal-incontinence-is-a-risk-factor-for-admission-to-aged-residential-care-of-older-persons-in-new-zealand
#18
Philip J Schluter, Charlotte Ward, Edwin P Arnold, Richard Scrase, Hamish A Jamieson
AIMS: To determine if urinary incontinence (UI) and fecal incontinence (FI) were independent risk factors for aged resident care (ARC) admissions for older people, after controlling for confounders and applying apposite statistical methods. METHODS: Since 2012, all community care recipients in New Zealand have undergone a standardized needs assessment using the Home Care International Residential Assessment Instrument (interRAI-HC). The interRAI-HC instrument elicits information on 236 questions over 20 domains, including UI and FI frequency within the last 3 days...
October 24, 2016: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/27758704/plant-derived-compounds-as-potential-source-of-novel-anti-biofilm-agents-against-pseudomonas-aeruginosa
#19
Pooi Yin Chung
Pseudomonas aeruginosa is the most common Gram-negative bacterium associated with nosocomial and life-threatening chronic infections in cystic fibrosis patients. This pathogen is well-known for its ability to attach to surfaces of indwelling medical devices to form biofilms, which consist of a regular array of extracellular polymers. Tenaciously bound to the surface of devices and inherently resilient to antibiotic treatment, P. aeruginosa poses a serious threat in clinical medicine and contributes to the persistence of chronic infections...
October 19, 2016: Current Drug Targets
https://www.readbyqxmd.com/read/27752973/tio2-containing-and-zno-containing-borosilicate-glass-a-novel-thin-glass-with-exceptional-antibiofilm-performances-to-prevent-microfouling
#20
Mareike Klinger-Strobel, Oliwia Makarewicz, Mathias W Pletz, Andreas Stallmach, Christian Lautenschläger
Biofilm formation, also known as microfouling, on indwelling medical devices such as catheters or prosthetic joints causes difficult to treat and recurrent infections. It is also the initial step for biocorrosion of surfaces in aquatic environment. An efficient prevention of microfouling is preferable but the development of antibiofilm surfaces is enormously challenging. Therefore, soda-lime, aluminosilicate, and three borosilicate glasses with different TiO2 and ZnO compositions were investigated on their feasibility to prevent biofilm formation by standardized in vitro biofilm assays using different pathogenic bacteria...
December 2016: Journal of Materials Science. Materials in Medicine
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