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https://www.readbyqxmd.com/read/28329222/effect-of-daptomycin-dose-on-the-outcome-of-vancomycin-resistant-daptomycin-susceptible-enterococcus-faecium-bacteremia
#1
Yu-Chung Chuang, Hsin-Yi Lin, Pao-Yu Chen, Chi-Ying Lin, Jann-Tay Wang, Yee-Chun Chen, Shan-Chwen Chang
Background.: Treatment options for vancomycin-resistant enterococci (VRE) bloodstream infection (BSI) are limited. Daptomycin, although not currently approved for this indication, is frequently used for the treatment of VRE-BSI. Its optimal dose still needs to be determined. Methods.: We conducted a prospective, observational, cohort study during 2010-2015. We included patients who received a daptomycin dose of ≥6 mg/kg for the treatment of VRE-BSI caused by daptomycin-susceptible VRE...
January 25, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28322345/nursing-staff-fluctuation-and-pathogenic-burden-in-the-nicu-effective-outbreak-management-and-the-underestimated-relevance-of-non-resistant-strains
#2
Kai O Hensel, Rhea van den Bruck, Ingo Klare, Michael Heldmann, Beniam Ghebremedhin, Andreas C Jenke
In the course of a hospital management takeover, a microbial outbreak took place in a tertiary neonatal intensive care unit (NICU). Here, we characterize the outbreak and its management. About 4 months prior to takeover, there was a sharp increase in positive isolates for MSSA and multidrug-resistant organisms (MDROs). Simultaneously, the nursing staff sick leave rate increased dramatically which directly correlated with the number of infection/colonization per week (r(2) = 0.95, p = 0.02). During the following months we observed several peaks in positive isolates of methicillin-sensitive staphylococcus aureus (MSSA), MDROs and subsequently a vancomycin-resistant enterococcus (VRE) outbreak...
March 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28321210/production-of-ramoplanin-and-ramoplanin-analogs-by-actinomycetes
#3
Mercedes de la Cruz, Ignacio González, Craig A Parish, Russell Onishi, José R Tormo, Jesús Martín, Fernando Peláez, Debbie Zink, Noureddine El Aouad, Fernando Reyes, Olga Genilloud, Francisca Vicente
Ramoplanin is a glycolipodepsipeptide antibiotic obtained from fermentation of Actinoplanes sp. ATCC 33076 that exhibits activity against clinically important multi-drug-resistant, Gram-positive pathogens including vancomycin-resistant Enterococcus (VRE), methicillin-resistant Staphylococcus aureus (MRSA), and vancomycin-intermediate resistant Clostridium difficile. It disrupts bacterial cell wall through a unique mechanism of action by sequestering the peptidoglycan intermediate Lipid II and therefore does not show cross-resistance with other antibiotics...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28320357/outcome-of-neurological-early-rehabilitation-patients-carrying-multi-drug-resistant-bacteria-results-from-a-german-multi-center-study
#4
J D Rollnik, M Bertram, C Bucka, M Hartwich, M Jöbges, G Ketter, B Leineweber, M Mertl-Rötzer, D A Nowak, T Platz, K Scheidtmann, R Thomas, F von Rosen, C W Wallesch, H Woldag, P Peschel, J Mehrholz, M Pohl
BACKGROUND: Colonization or infection with multi-drug resistant (MDR) bacteria is considered detrimental to the outcome of neurological and neurosurgical early rehabilitation patients. METHODS: In a German multi-center study, 754 neurological early rehabilitation patients were enrolled and and reviewed in respect to MDR status, length of stay (LOS) and the following outcome variables: Barthel Index (BI), Early Rehabilitation Index (ERI), Glasgow Outcome Score Extended (GOSE), Coma Remission Scale (CRS), Functional Ambulation Categories (FAC)...
March 20, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28316844/aspergillus-pericarditis-with-tamponade-in-a-renal-transplant-patient
#5
Sylvia Biso, Rapeepat Lekkham, Antoinette Climaco
Aspergillus pericarditis is a rare and life-threatening infection in immunosuppressed patients. It has nonspecific clinical manifestations that often mimic other disease entities especially in patients who have extensive comorbidities. Diagnosis is oftentimes delayed and rarely done antemortem. A high degree of suspicion in immunocompromised patients is necessary for evaluation and timely diagnosis. This is a case of Aspergillus pericarditis with cardiac tamponade in a renal transplant patient with liver cirrhosis...
2017: Case Reports in Cardiology
https://www.readbyqxmd.com/read/28316631/potential-impact-of-rapid-blood-culture-testing-for-gram-positive-bacteremia-in-japan-with-the-verigene-gram-positive-blood-culture-test
#6
Ken Kikuchi, Mari Matsuda, Shigekazu Iguchi, Tomonori Mizutani, Keiichi Hiramatsu, Michiru Tega-Ishii, Kaori Sansaka, Kenta Negishi, Kimie Shimada, Jun Umemura, Shigeyuki Notake, Hideji Yanagisawa, Hiroshi Takahashi, Reiko Yabusaki, Hideki Araoka, Akiko Yoneyama
Background. Early detection of Gram-positive bacteremia and timely appropriate antimicrobial therapy are required for decreasing patient mortality. The purpose of our study was to evaluate the performance of the Verigene Gram-positive blood culture assay (BC-GP) in two special healthcare settings and determine the potential impact of rapid blood culture testing for Gram-positive bacteremia within the Japanese healthcare delivery system. Furthermore, the study included simulated blood cultures, which included a library of well-characterized methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant enterococci (VRE) isolates reflecting different geographical regions in Japan...
2017: Canadian Journal of Infectious Diseases & Medical Microbiology
https://www.readbyqxmd.com/read/28301471/genomic-confirmation-of-vancomycin-resistant-enterococcus-transmission-from-deceased-donor-to-liver-transplant-recipient
#7
Ali Bashir, Oliver Attie, Mitchell Sullivan, Robert Sebra, Kavindra V Singh, Deena Altman, Theodore Pak, Jayeeta Dutta, Kieran Chacko, Elizabeth Webster, Martha Lewis, Camille Hamula, Kristin W Delli Carpini, Barbara E Murray, Andrew Kasarskis, Harm van Bakel, Shirish Huprikar
In a liver transplant recipient with vancomycin-resistant Enterococcus (VRE) surgical site and bloodstream infection, a combination of pulsed-field gel electrophoresis, multilocus sequence typing, and whole genome sequencing identified that donor and recipient VRE isolates were highly similar when compared to time-matched hospital isolates. Comparison of de novo assembled isolate genomes was highly suggestive of transplant transmission rather than hospital-acquired transmission and also identified subtle internal rearrangements between donor and recipient missed by other genomic approaches...
2017: PloS One
https://www.readbyqxmd.com/read/28295441/fosfomycin-for-the-treatment-of-cystitis-in-the-abdominal-solid-organ-transplant-population
#8
A A Loethen, L Kerstenetzky, J L Descourouez, G E Leverson, J A Smith, M R Jorgenson
STUDY OBJECTIVES: Evaluate the use of fosfomycin (FOS) at the FDA-approved single-dose regimen as well as off-label multidose regimens for the treatment of cystitis after abdominal solid organ transplant (aSOT). DESIGN: Retrospective study. SETTING: Tertiary academic medical center. PATIENTS: Adult inpatients with history of aSOT receiving FOS between 1/1/2009-4/30/2015 for the treatment of cystitis. MEASUREMENTS AND MAIN RESULTS: Seventy-six courses of FOS were identified in 64 patients...
March 12, 2017: Pharmacotherapy
https://www.readbyqxmd.com/read/28288575/lactobacillus-derived-extracellular-vesicles-enhance-host-immune-responses-against-vancomycin-resistant-enterococci
#9
Ming Li, Kiho Lee, Min Hsu, Gerard Nau, Eleftherios Mylonakis, Bharat Ramratnam
BACKGROUND: Probiotic bacteria are known to modulate host immune responses against various pathogens. Recently, extracellular vesicles (EVs) have emerged as potentially important mediators of host-pathogen interactions. In this study, we explored the role of L. plantarum derived EVs in modulating host responses to vancomycin-resistant Enterococcus faecium (VRE) using both Caenorhabditis elegans and human cells. RESULTS: Our previous work has shown that probiotic conditioning C...
March 14, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28278065/ultraviolet-uv-reflective-paint-with-ultraviolet-germicidal-irradiation-uvgi-improves-decontamination-of-nosocomial-bacteria-on-hospital-room-surfaces
#10
Katelyn C Jelden, Shawn G Gibbs, Philip W Smith, Angela L Hewlett, Peter C Iwen, Kendra K Schmid, John J Lowe
An ultraviolet germicidal irradiation (UVGI) generator (the TORCH™, ClorDiSys Solutions, Inc.) was used to compare the disinfection of surface coupons (plastic from a bedrail, stainless steel, and chrome-plated light switch cover) in a hospital room with walls coated with ultraviolet (UV)-reflective paint (Lumacept) or standard paint. Each surface coupon was inoculated with methicillin-resistant Staphylococcus aureus (MRSA) or vancomycin-resistant Enterococcus faecalis (VRE), placed at 6 different sites within a hospital room coated with UV-reflective paint or standard paint, and treated by 10 minute UVC exposure (UVC dose of 0-688 mJ/cm(2) between sites with standard paint and 0-553 mJ/cm(2) with UV-reflective paint) in 8 total trials...
February 28, 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/28273381/role-of-combination-antimicrobial-therapy-for-vancomycin-resistant-enterococcus-faecium-infections-review-of-the-current-evidence
#11
Juwon Yim, Jordan R Smith, Michael J Rybak
Enterococcus species are the second most common cause of nosocomial infections in the United States and are particularly concerning in critically ill patients with preexisting comorbid conditions. Rising resistance to antimicrobials that were historically used as front-line agents for treatment of enterococcal infections, such as ampicillin, vancomycin, and aminoglycosides, further complicates the treatment of these infections. Of particular concern are Enterococcus faecium strains that are associated with the highest rate of vancomycin resistance...
March 8, 2017: Pharmacotherapy
https://www.readbyqxmd.com/read/28270326/investigating-relationships-between-ptsd-symptom-clusters-within-virtual-reality-exposure-therapy-for-oef-oif-veterans
#12
Jessica L Maples-Keller, Matthew Price, Sheila Rauch, Maryrose Gerardi, Barbara O Rothbaum
Several cognitive behavioral therapeutic approaches have been demonstrated to be effective in reducing post-traumatic stress disorder (PTSD) symptoms (Foa, Keane, Friedman, & Cohen, 2008). The bulk of PTSD treatment research has relied on pre-post designs, which are limited in their ability to investigate the therapeutic process over time. The present study investigated the relations between PTSD symptom clusters using symptom assessment at pretreatment, midtreatment, and posttreatment using cross-lagged panel design over the course of Virtual Reality Exposure (VRE) treatment...
March 2017: Behavior Therapy
https://www.readbyqxmd.com/read/28268024/presence-distribution-and-molecular-epidemiology-of-multi-drug-resistant-gram-negative-bacilli-from-medical-personnel-of-intensive-care-units-in-tianjin-china-2007-2015
#13
H Liu, C N Fei, Y Zhang, G W Liu, J Liu, J Dong
BACKGROUND: Multi-drug-resistant Gram-negative bacteria (MDRGNB) have become an important cause of nosocomial infection in intensive care units (ICUs). AIMS: To investigate the molecular epidemiology of MDRGNB isolated from medical personnel (MP) and non-medical personnel (NMP) at 69 ICUs in Tianjin, China. METHODS: From April 2007 to October 2015, 2636 nasal and hand swab samples from 1185 MP and 133 NMP were cultured for GNB (including MDRGNB), meticillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant enterococci (VRE)...
January 28, 2017: Journal of Hospital Infection
https://www.readbyqxmd.com/read/28267763/molecular-characterization-of-vancomycin-resistant-enterococcus-faecium-isolates-from-bermuda
#14
Patrick Eberechi Akpaka, Shivnarine Kissoon, Clyde Wilson, Padman Jayaratne, Ashley Smith, George R Golding
Molecular characteristics of vancomycin resistant enterococci isolates from Bermuda Island is currently unknown. This study was conducted to investigate phenotypic and genotypic characteristics of VRE isolates from Bermuda Island using the chromogenic agar, E-tests, polymerase chain reaction (PCR), pulsed-field gel electrophoresis (PFGE) and multilocus sequence typing (MLST). Eighteen E. faecium isolates were completely analyzed and were all resistant to vancomycin, susceptible to linezolid and quinupristin/dalfopristin, positive for vanA and esp genes...
2017: PloS One
https://www.readbyqxmd.com/read/28263573/cytocompatibility-of-wood-derived-cellulose-nanofibril-hydrogels-with-different-surface-chemistry
#15
Ahmad Rashad, Kamal Mustafa, Ellinor Bævre Heggset, Kristin Syverud
The current study aims to demonstrate the influence of the surface chemistry of wood-derived cellulose nanofibril (CNF) hydrogels on fibroblasts for tissue engineering applications. TEMPO-mediated oxidation or carboxymethylation pretreatments were employed to produce hydrogels with different surface chemistry. This study demonstrates the following: first, the gelation of CNF with cell culture medium and formation of stable hydrogels with improved rheological properties; second, the response of mouse fibroblasts cultured on the surface of the hydrogels or sandwiched within the materials with respect to cytotoxicity, cell attachment, proliferation, morphology, and migration...
March 16, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28253823/in-vitro-antibacterial-activity-and-in-vivo-therapeutic-effect-of-sesbania-grandiflora-in-bacterial-infected-silkworms
#16
Pimporn Anantaworasakul, Hiroshi Hamamoto, Kazuhisa Sekimizu, Siriporn Okonogi
CONTEXT: Antibiotic resistance is a serious problem worldwide. Searching for new potential agents is, therefore, essential. The bark of Sesbania grandiflora (L.) Pers. (Fabaceae) has been used in folk medicine against various diseases. OBJECTIVE: To investigate the antibacterial activity of S. grandiflora bark and explore the therapeutic effect of the highest potent fraction. MATERIALS AND METHODS: Bacteria and healthy silkworms were exposed to three fractionated extracts (3...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28248504/phenylthiazole-antibacterial-agents-targeting-cell-wall-synthesis-exhibit-potent-activity-in-vitro-and-in-vivo-against-vancomycin-resistant-enterococci
#17
Haroon Mohammad, Waleed Younis, Lu Chen, Christine E Peters, Joe Pogliano, Kit Pogliano, Bruce Cooper, Jianan Zhang, Abdelrahman Mayhoub, Eric Oldfield, Mark Cushman, Mohamed N Seleem
The emergence of antibiotic-resistant bacterial species, such as vancomycin-resistant enterococci (VRE), necessitates the development of new antimicrobials. Here, we investigate the spectrum of antibacterial activity of three phenylthiazole-substituted aminoguanidines. These compounds possess potent activity against VRE, inhibiting growth of clinical isolates at concentrations as low as 0.5 μg/mL. The compounds exerted a rapid bactericidal effect, targeting cell wall synthesis. Transposon mutagenesis suggested three possible targets: YubA, YubB (undecaprenyl diphosphate phosphatase (UPPP)), and YubD...
March 15, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28244481/epidemiology-and-resistance-pattern-of-bacterial-isolates-among-cancer-patients-in-a-tertiary-care-oncology-centre-in-north-india
#18
U Batra, P Goyal, P Jain, A Upadhyay, N Sachdeva, M Agarwal, D Bhurani, V Talwar, S K Gupta, D C Doval
OBJECTIVES: To examine the epidemiology of microbiologically documented bacterial infection and the resistance pattern, among cancer patients undergoing treatment at RGCIRC, Delhi. DESIGN AND SETTING: Retrospective observational study in which culture reports obtained over 1 year in 2013, were analyzed. RESULTS: 13329 cultures were obtained over 1 year in 2013 and were analyzed. 23.6 % samples showed positive culture with majority being gram negative isolates (67...
July 2016: Indian Journal of Cancer
https://www.readbyqxmd.com/read/28237504/is-faecal-microbiota-transplantation-an-option-to-eradicate-highly-drug-resistant-enteric-bacteria-carriage
#19
B Davido, R Batista, H Michelon, M Lepainteur, F Bouchand, R Lepeule, J Salomon, D Vittecoq, C Duran, L Escaut, I Sobhani, M Paul, C Lawrence, C Perronne, F Chast, A Dinh
Carbapenem-resistant Enterobacteriaceae (CRE) or vancomycin-resistant enterococci (VRE) carriage present a major public health challenge. Decolonization strategies are lacking. We aimed to evaluate the impact of faecal microbiota transplantation (FMT) on a cohort of patients with digestive tract colonization by CRE or VRE. Eight patients were included: six carrying CRE and two colonized by VRE. One month after FMT, two patients were free from CRE carriage, and another patient was free from VRE after three months...
February 6, 2017: Journal of Hospital Infection
https://www.readbyqxmd.com/read/28228089/genotypic-characterization-of-vancomycin-resistant-enterococcus-spp-in-tertiary-center-iran
#20
Shervin Shokouhi, Ilad Alavi Darazam, Matin Rouhani, Mahdiyeh Ghasemnejad
BACKGROUND: Enterococci infection rate, mortality and morbidity has been increased in recent decades accompanied by progressive emerging antimicrobial resistance. Vancomycin-resistant enterococci (VRE), important pathogen in hospitalized patients, have distinct antibiotic susceptibility to glycopeptides that varied genetically and can influence in choosing therapeutic agents. In this study, we aimed to determine the patterns of antimicrobial resistance according to the genotypic variations in VREs...
February 10, 2017: Infectious Disorders Drug Targets
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