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pseudomonas infection

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https://www.readbyqxmd.com/read/28105943/comprehensive-analysis-of-draft-genomes-of-two-closely-related-pseudomonas-syringae-phylogroup-2b-strains-infecting-mono-and-dicotyledon-host-plants
#1
Rinat I Sultanov, Georgij P Arapidi, Svetlana V Vinogradova, Vadim M Govorun, Duglas G Luster, Alexander N Ignatov
BACKGROUND: In recent years, the damage caused by bacterial pathogens to major crops has been increasing worldwide. Pseudomonas syringae is a widespread bacterial species that infects almost all major crops. Different P. syringae strains use a wide range of biochemical mechanisms, including phytotoxins and effectors of the type III and type IV secretion systems, which determine the specific nature of the pathogen virulence. RESULTS: Strains 1845 (isolated from dicots) and 2507 (isolated from monocots) were selected for sequencing because they specialize on different groups of plants...
December 28, 2016: BMC Genomics
https://www.readbyqxmd.com/read/28105127/clinical-study-on-cluster-care-to-prevent-multi-drug-resistant-infection-in-icu-patients-with-severe-encephalopathy
#2
Liu Qiong, Zhu Hui
The value of clinical cluster nursing in the prevention of multi-drug resistant (MDR) infection in patients with severe encephalopathy in ICU was evaluated. ICU patients (n=129) diagnosed with severe encephalopathy between 2012 and 2014 were selected as the study group, while 106 cases of ICU patients diagnosed with severe encephalopathy between 2010 and 2012 were retrospectively selected as the control group. Control group patients were offered conventional integrated nursing care, while the study group patients were offered cluster nursing care...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28101156/clinical-and-microbiological-profile-of-babies-born-with-risk-of-neonatal-sepsis
#3
Bin Zhou, Xiao Liu, Jie-Bin Wu, Bao Jin, Yan-Yan Zhang
The aim of the present study was to evaluate the effects of antibiotics on the condition of babies born with risk of neonatal sepsis. From March, 2014 to February, 2015, 200 neonates born with risk factors of septicemia in the Neonatal Intensive Care Unit at Xuzhou Central Hospital, were enrolled in the present study. Venous blood samples were collected within 6 h of birth using aseptic technique. Part of the blood specimens were cultured using BACTEC PEDS PLUS/F Culture Vials. Subsequently, the subcultures were prepared from each presumptive positive vial and bacterial isolates were identified...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28099040/effect-of-bacoside-a-on-growth-and-biofilm-formation-by-staphylococcus-aureus-and-pseudomonas-aeruginosa
#4
Debaprasad Parai, Ekramul Islam, Jayati Mitra, Samir Kumar Mukherjee
The goal of this study was to evaluate the antibiofilm and antimicrobial activities of Bacoside A, a formulation of phytochemicals from Bacopa monnieri, against Staphylococcus aureus and Pseudomonas aeruginosa, which are known to form biofilms as one of their virulence traits. The antimicrobial effects of Bacoside A were tested using the minimum inhibitory concentration and minimum bactericidal concentration assays. A cell membrane disruption assay was performed to find its possible target site. MTT assay, crystal violet assay, and microscopic studies were performed to assess the antibiofilm activity...
October 24, 2016: Canadian Journal of Microbiology
https://www.readbyqxmd.com/read/28098548/nosocomial-infections-with-imp-19-producing-pseudomonas-aeruginosa-linked-to-contaminated-sinks-france
#5
Lucie Amoureux, Karena Riedweg, Angélique Chapuis, Julien Bador, Eliane Siebor, André Péchinot, Marie-Lorraine Chrétien, Claire de Curraize, Catherine Neuwirth
We isolated IMP-19-producing Pseudomonas aeruginosa from 7 patients with nosocomial infections linked to contaminated sinks in France. We showed that blaIMP-19 was located on various class 1 integrons among 8 species of gram-negative bacilli detected in sinks: P. aeruginosa, Achromobacter xylosoxidans, A. aegrifaciens, P. putida, Stenotrophomonas maltophilia, P. mendocina, Comamonas testosteroni, and Sphingomonas sp.
February 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28097633/meropenem-dosing-based-on-a-population-pharmacokinetic-pharmacodynamic-model-in-elderly-patients-with-infection-of-the-lower-respiratory-tract
#6
Qing-Tao Zhou, Bei He, Ning Shen, Ying Liang, Li-Na Sun
BACKGROUND: Meropenem is used for the treatment of severe lower respiratory tract infections (LRTIs) caused by multidrug-resistant Gram-negative bacilli. OBJECTIVE: We evaluated the clinical benefits of a strategy of meropenem dosing based on a population pharmacokinetics/pharmacodynamics (PK/PD) model in elderly patients with an LRTI. METHODS: In this prospective single-center open-label randomized controlled trial, 79 elderly patients with an LRTI caused by Gram-negative bacilli were randomized to a study group (SG) or a control group (CG)...
January 17, 2017: Drugs & Aging
https://www.readbyqxmd.com/read/28097503/blended-chitosan-paste-for-infection-prevention-preliminary-and-preclinical-evaluations
#7
Joel M Berretta, Jessica A Jennings, Harry S Courtney, Karen E Beenken, Mark S Smeltzer, Warren O Haggard
BACKGROUND: Local drug delivery devices offer a promising method for delivering vancomycin and amikacin for musculoskeletal wounds. However, current local delivery devices such as beads and sponges do not necessarily allow for full coverage of a wound surface with eluted antibiotics and do not address the need for reducing the antibiotic diffusion distance to help prevent contamination by bacteria or other microorganisms. We blended chitosan/polyethylene glycol (PEG) pastes/sponges to increase biocompatibility and improve antibiotic coverage within the wound...
January 17, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28097270/prospective-study-analyzing-risk-factors-and-characteristics-of-healthcare-associated-infections-in-a-urology-ward
#8
José Medina-Polo, Raquel Sopeña-Sutil, Raúl Benítez-Sala, Alba Lara-Isla, Manuel Alonso-Isa, Javier Gil-Moradillo, Juan Justo-Quintas, Esther García-Rojo, Daniel Antonio González-Padilla, Juan Bautista Passas-Martínez, Ángel Tejido-Sánchez
PURPOSE: Healthcare-associated infections (HAIs) in urological patients have special features due to specific risk factors. Our objective was to evaluate the characteristics and risk factors for HAIs in patients hospitalized in a Urology ward. MATERIALS AND METHODS: We evaluated prospectively, from 2012 to 2015, the incidence, types and risk factor for HAIs, microbiological and resistance patterns. RESULTS: The incidence of HAIs was 6.3%. The most common types were urinary infections (70...
January 2017: Investigative and Clinical Urology
https://www.readbyqxmd.com/read/28097041/effect-of-catechins-green-tea-extract-and-methylxanthines-in-combination-with-gentamicin-against-staphylococcus-aureus-and-pseudomonas-aeruginosa-combination-therapy-against-resistant-bacteria
#9
Bibi Sedigheh Fazly Bazzaz, Sahar Sarabandi, Bahman Khameneh, Hossein Hosseinzadeh
OBJECTIVES: Bacterial resistant infections have become a global health challenge and threaten the society's health. Thus, an urgent need exists to find ways to combat resistant pathogens. One promising approach to overcoming bacterial resistance is the use of herbal products. Green tea catechins, the major green tea polyphenols, show antimicrobial activity against resistant pathogens. The present study aimed to investigate the effect of catechins, green tea extract, and methylxanthines in combination with gentamicin against standard and clinical isolates of Staphylococcus aureus (S...
December 2016: Journal of Pharmacopuncture
https://www.readbyqxmd.com/read/28096975/a-prospective-survey-of-pseudomonas-aeruginosa-colonization-and-infection-in-the-intensive-care-unit
#10
Regev Cohen, Frida Babushkin, Shoshana Cohen, Marina Afraimov, Maurice Shapiro, Martina Uda, Efrat Khabra, Amos Adler, Ronen Ben Ami, Svetlana Paikin
BACKGROUND: Pseudomonas aeruginosa (PA) surveillance may improve empiric antimicrobial therapy, since colonizing strains frequently cause infections. This colonization may be 'endogenous' or 'exogenous', and the source determines infection control measures. We prospectively investigated the sources of PA, the clinical impact of PA colonization upon admission and the dynamics of colonization at different body sites throughout the intensive care unit stay. METHODS: Intensive care patients were screened on admission and weekly from the pharynx, endotracheal aspirate, rectum and urine...
2017: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/28095918/anti-staphylococcal-activity-resulting-from-epithelial-lining-fluid-elf-concentrations-of-amikacin-inhale-administered-via-the-pulmonary-drug-delivery-system
#11
Islam M Ghazi, Mordechai Grupper, David P Nicolau
BACKGROUND: Amikacin inhale (BAY41-6551), a unique drug-device combination of a specially formulated drug solution and a pulmonary drug delivery system device (AMK-I) is currently under phase III study as an adjunctive therapy to IV antibiotics for the treatment of Gram-negative pneumonia in mechanically ventilated patients. While the epidemiology of nosocomial pneumonia is predominated by Gram-negative pathogens such as Pseudomonas aeruginosa and the Enterobacteriaceae, Staphylococcus aureus is increasingly recognized as a pathogen of concern for these pulmonary based infections...
January 17, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28095898/differences-in-rantes-and-il-6-levels-among-chronic-rhinosinusitis-patients-with-predominant-gram-negative-and-gram-positive-infection
#12
Almoaidbellah Rammal, Marc Tewfik, Simon Rousseau
BACKGROUND: Bacteria are suspected players in the pathogenesis of chronic rhinosinusitis (CRS), yet their exact role is not understood. We investigated the effect of planktonic and biofilm of staphylococcus aureus (SA) and Pseudomonas aeruginosa (PA) on the mucosa of CRS patients with gram-positive and gram-negative infections by measuring the levels of IL-6 and RANTES, a chemokine with activity on eosinophils and T lymphocytes. METHODS: Ethmoid mucosa of six CRS patients with gram-positive bacteria on culture and five with gram-negative bacteria were compared to ethmoid mucosa of 8 control patients...
January 17, 2017: Journal of Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28095464/molecular-control-of-innate-immune-response-to-pseudomonas-aeruginosa-infection-by-intestinal-let-7-in-caenorhabditis-elegans
#13
Lingtong Zhi, Yonglin Yu, Xueying Li, Daoyong Wang, Dayong Wang
The microRNA (miRNA) let-7 is an important miRNA identified in Caenorhabditis elegans and has been shown to be involved in the control of innate immunity. The underlying molecular mechanisms for let-7 regulation of innate immunity remain largely unclear. In this study, we investigated the molecular basis for intestinal let-7 in the regulation of innate immunity. Infection with Pseudomonas aeruginosa PA14 decreased let-7::GFP expression. Intestine- or neuron-specific activity of let-7 was required for its function in the regulation of innate immunity...
January 17, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28094327/rapid-adaptation-drives-invasion-of-airway-donor-microbiota-by-pseudomonas-after-lung-transplantation
#14
M Beaume, T Köhler, G Greub, O Manuel, J-D Aubert, L Baerlocher, L Farinelli, A Buckling, C van Delden
In cystic fibrosis (CF) patients, chronic airway infection by Pseudomonas leads to progressive lung destruction ultimately requiring lung transplantation (LT). Following LT, CF-adapted Pseudomonas strains, potentially originating from the sinuses, may seed the allograft leading to infections and reduced allograft survival. We investigated whether CF-adapted Pseudomonas populations invade the donor microbiota and adapt to the non-CF allograft. We collected sequential Pseudomonas isolates and airway samples from a CF-lung transplant recipient during two years, and followed the dynamics of the microbiota and Pseudomonas populations...
January 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28093651/infections-in-intensive-care-unit-adult-patients-harboring-multidrug-resistant-pseudomonas-aeruginosa-implications-for-prevention-and-therapy
#15
B Borgatta, L Lagunes, A T Imbiscuso, M N Larrosa, M Lujàn, J Rello
The purpose of this paper was to report the burden and characteristics of infection by multidrug-resistant Pseudomonas aeruginosa (MDR-PA) in clinical samples from intensive care unit (ICU) adults, and to identify predictors. This was a retrospective observational study at four medical-surgical ICUs. The case cohort comprised adults with documented isolation of an MDR-PA strain from a clinical specimen during ICU stay. Multivariate analysis was performed to identify predictors for MDR-PA infection. During the study period, 5667 patients were admitted to the ICU and P...
January 16, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28093464/socioeconomic-status-smoke-exposure-and-health-outcomes-in-young-children-with-cystic-fibrosis
#16
Thida Ong, Michael Schechter, Jing Yang, Limin Peng, Julia Emerson, Ronald L Gibson, Wayne Morgan, Margaret Rosenfeld
BACKGROUND: Lower socioeconomic status (SES) and environmental tobacco smoke (ETS) exposure are both associated with poorer disease outcomes in cystic fibrosis (CF), and children with low SES are disproportionately exposed to ETS. We analyzed a large cohort of young children with CF to distinguish the impact of SES and ETS on clinical outcomes. METHODS: The Early Pseudomonas Infection Control Observational study enrolled Pseudomonas-negative young children with CF <13 years of age...
January 16, 2017: Pediatrics
https://www.readbyqxmd.com/read/28092850/tomato-slggp-like-gene-participates-in-plant-responses-to-chilling-stress-and-pathogenic-infection
#17
Dong-Yue Yang, Meng Li, Na-Na Ma, Xing-Hong Yang, Qing-Wei Meng
Plants are always exposed to abiotic and biotic stresses which can adversely affect their growth and development. As an important antioxidant, AsA plays a vital role in plant defence against damage caused by stresses. In this study, we cloned a tomato GDP-L-galactose phosphorylase-like (SlGGP-LIKE) gene and investigated its role in resistance to abiotic and biotic stresses by using antisense transgenic (AS) tomato lines. The AsA content in AS plants was lower than that in WT plants. Under chilling stress, the growth of AS plants was inhibited significantly, and they yielded higher levels of ROS, REC and MDA but demonstrated weaker APX activity than that shown by WT plants...
January 9, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28090415/non-melanoma-associated-dyschromia-of-the-proximal-nail-fold
#18
Nicole C DeMartinis, Philip R Cohen
Subungual melanoma with pigmentation beneath the nail that extends to involve the proximal nail fold is referred to as Hutchinson's sign. Black or brown subungual discoloration involving the proximal nail fold secondary to other etiologies has been referred to as pseudo-Hutchinson's sign. Three patients with nail discoloration and concurrent dyschromia of the proximal nail fold are described: a female with a chronic subungual hematoma and pseudo-Hutchinson's sign, a male with culture-confirmed Pseudomonas aeruginosa (P...
December 9, 2016: Curēus
https://www.readbyqxmd.com/read/28090273/the-effects-of-berberine-and-palmatine-on-efflux-pumps-inhibition-with-different-gene-patterns-in-pseudomonas-aeruginosa-isolated-from-burn-infections
#19
Seyed Sajjad Aghayan, Hamidreza Kalalian Mogadam, Mozhgan Fazli, Davood Darban-Sarokhalil, Seyed Sajjad Khoramrooz, Fereshteh Jabalameli, Somayeh Yaslianifard, Mehdi Mirzaii
BACKGROUND: Related Multidrug Resistance (MDR) to efflux pumps is a significant problem in treating infections caused by Pseudomonas aeruginosa (P. aeruginosa). Plant compounds have been identified as Pump Inhibitors (EPIs). In the current study, the potential effect of Berberine and Palmatine as EPIs were investigated on efflux pump inhibition through focusing on different gene patterns in P. aeruginosa isolated from burn infections. METHODS: All isolates were collected and identified using the standard biochemical tests...
January 2017: Avicenna Journal of Medical Biotechnology
https://www.readbyqxmd.com/read/28089143/long-term-mortality-following-pseudomonas-aeruginosa-bloodstream-infection
#20
K L McCarthy, D L Paterson
BACKGROUND: Pseudomonas aeruginosa bloodstream infections (BSI) are associated with substantial short-term mortality. There is little data on long-term mortality associated with this BSI. AIM: To describe mortality rates up to one year post infection and the significant factors associated with death. METHODS: Positive blood cultures for P. aeruginosa were identified retrospectively from January 2008 to January 2011 at seven tertiary care hospitals...
November 30, 2016: Journal of Hospital Infection
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