Search results for " Staphylococcus aureu"
showing 10 items of 68 documents
Interactions in dual species biofilms between Listeria monocytogenes EGD-e and several strains of Staphylococcus aureus.
2008
International audience; Six environmental isolates of Staphylococcus aureus and one collection strain were investigated for their ability to form monospecies biofilms and dual species biofilms with Listeria monocytogenes EGD-e on stainless steel coupons. All isolates were able to grow as biofilms but their ability to form monospecies biofilms differed. The population of L. monocytogenes EGD-e in dual species biofilms was not affected by the presence of S. aureus isolates except for strain CIP 53.156. The effect of L. monocytogenes EGD-e on the population of S. aureus was strain dependent: S. aureus population either increased or decreased or was not affected in the presence of L. monocytoge…
New potent antibacterials against Gram-positive multiresistant pathogens: effects of side chain modification and chirality in linezolid-like 1,2,4-ox…
2014
The effects of side chain modification and chirality in linezolid-like 1,2,4-oxadiazoles have been studied to design new potent antibacterials against Gram-positive multidrug-resistant pathogens. The adopted strategy involved a molecular modelling approach, the synthesis and biological evaluation of new designed compounds, enantiomers separation and absolute configuration assignment. Experimental determination of the antibacterial activity of the designed (S)-1-((3-(4-(3-methyl-1,2,4-oxadiazol-5- yl)phenyl)-oxazolidin-2-one-5-yl)methyl)-3-methylthiourea and (S)-1-((3-(3-fluoro-4-(3-methyl-1,2,4- oxadiazol-5-yl)phenyl)-oxazolidin-2-one-5-yl)methyl)-3-methylthiourea against multidrug resistan…
Epidemic spread of ST1-MRSA-IVa in a neonatal intensive care unit, Italy
2012
Abstract Background Community-associated methicillin-resistant Staphylococcus aureus (CA-MRSA) has recently emerged as an important pathogen in neonatal intensive care units (NICUs). The purposes of this study were to characterize methicillin-resistant isolates from an outbreak in a NICU, to examine the genetic traits and clonality of CA-MRSA, and to review the characteristics and outcomes of the neonatal cases and investigate the routes of entry and transmission of the MRSA outbreak strain in the NICU under study. Methods The study NICU practiced an active surveillance program for multidrug-resistant organisms, including weekly cultures for detection of MRSA from nasal swabs among all the …
Staphylococcal Biofilms:Challenges in the Discovery of Novel Antiinfective Agents
2011
Staphylococci can induce a wide spectrum of infectious diseases that are associated with remarkable morbidity and mortality [1]. In fact, community and hospital-acquired methicillin resistant Staphylococcus aureus (MRSA) is a major health problem that has created a pressing need for novel therapeutic options [2]. Importantly, pathogenic staphylococci have not only an amazing ability to acquire resistance to antibiotics, but also to form biofilms, bacterial communities that grow on surfaces and are surrounded by a self-produced polymer matrix. This latter characteristic is likely the most important virulence factor of staphylococci in the development of the chronic form of infectious disease…
An international perspective on hospitalized patients with viral community-acquired pneumonia
2019
Background Who should be tested for viruses in patients with community acquired pneumonia (CAP), prevalence and risk factors for viral CAP are still debated. We evaluated the frequency of viral testing, virus prevalence, risk factors and treatment coverage with oseltamivir in patients admitted for CAP. Methods Secondary analysis of GLIMP, an international, multicenter, point-prevalence study of hospitalized adults with CAP. Testing frequency, prevalence of viral CAP and treatment with oseltamivir were assessed among patients who underwent a viral swab. Univariate and multivariate analysis was used to evaluate risk factors. Results 553 (14.9%) patients with CAP underwent nasal swab. Viral CA…
Paracentrin1, a synthetic antimicrobial peptide fragment of a beta-thymosin from the sea-urchin Paracentrotus lividus, interferes whith staphylococca…
2014
ATTIVITÀ ANTIBATTERICA DI UNA SOLUZIONE OLEOSA: possibili applicazioni nell’industria alimentare per la prevenzione della formazione di biofilm
2014
Le malattie che derivano dal consumo di alimenti hanno sempre minacciato la salute umana. Oggi il loro aumento è diventato un problema per salute pubblica, emergente in tutto il mondo. Molte di queste malattie sono state associate alla presenza di biofilm batterici, comunità microbiche complesse, nell’industria alimentare. Il biofilm è diventato un grosso problema per l’industria della lavorazione del pesce, del latte e derivati, del pollame, della carne e dei cibi “pronti da mangiare”, perché, in seguito alla sua formazione, i batteri a esso associati sono particolarmente resistenti agli agenti antimicrobici e alle operazioni di pulizia. Anche se fino ad oggi sono ancora utilizzate, e sono…
Staphylococcus aureus résistant à la méthicilline chez des mères et des enfants hospitalisés à Alger : prédominance du clone virulent européen
2014
NON DISPONIBILE
Uso del tonometro e rischio infettivo ; valutazione dell'efficacia di differenziali tipi di disinfettanti.
2006
Obiettivo: valutare e confrontare l’efficacia dei più comuni tipi di disinfettanti per la disinfezione dei coni tonometrici e trarre alcune indicazioni sulla applicabilità alla realtà clinico-diagnostica in campo oftalmologico. Materiali e metodi: coni tonometrici monouso sterili, previamente contaminati con ceppi standard di Staphylococcus aureus, Bacillus subtilis, Pseudomonas aeruginosa e Candida albicans sono stati testati, dopo semplice detersione o disinfezione con acqua ossigenata al 3%, benzalconio cloruro allo 0.5%, Minuten wipes (Alpro® ), Pantasept® allo 0.5% secondo le linee guida del CDC di Atlanta. Risultati: la semplice detersione è stata inefficace contro tutte le specie tes…