نتایج جستجو برای: ژن vana

تعداد نتایج: 16494  

Journal: :Microbiology research 2023

An Enterococcus faecium strain was obtained from a paraprostatic cyst of 17-year-old dog in Greece. Antibiotic susceptibility testing (AST) accomplished by disc diffusion and MIC methods, the isolate demonstrated multidrug-resistant (MDR) phenotype against great variety antibiotics, such as β-Lactams, Quinolones, Macrolides, Tetracyclines, Rifampin, Nitrofurantoin, surprisingly, Glycopeptides, ...

ابراهیمی آتش خسرو , نادر, مؤدب, سیدرضا , کاظمی حکی , بهزاد ,

    Background & Aims : After Vancomycin resistant Enterococci (VRE) was first detected in the mid 1980s, VRE spread rapidly worldwide and became one of the most serious problems in many hospitals specially in hospitalized patients. Among different enterococcal species Enterococcus feacalis and Enterococus faecium are the leading causes of life threatening infections. VanA/B/C genes are respons...

Mohammad Reza khataminejad Saeed Zaker Bostanabad Zahra Ghanizadeh Dizaj

Enterococci, as the major cause of nosocomial infections, have been shown to have an increase in drug resistance during the past two decades. TheEntrococcalemergence of Vancomycin-resistant is very important nowadays. The purpose of this study was to determine the drug sensitivity of Enterococcus faecalis and Enterococcus faecium species against Vancomycin, Tetracycline, Gentamicin, Erythromyci...

Journal: :Enfermedades infecciosas y microbiologia clinica 2016
Paola Bocanegra-Ibarias Samantha Flores-Treviño Adrián Camacho-Ortiz Rayo Morfin-Otero Licet Villarreal-Treviño Jorge Llaca-Díaz Erik Alan Martínez-Landeros Eduardo Rodríguez-Noriega Andrés Calzada-Güereca Héctor Jesús Maldonado-Garza Elvira Garza-González

INTRODUCTION Enterococcus faecium has emerged as a multidrug-resistant nosocomial pathogen involved in outbreaks worldwide. Our aim was to determine the antimicrobial susceptibility, biofilm production, and clonal relatedness of vancomycin-resistant E. faecium (VREF) clinical isolates from two hospitals in Mexico. METHODS Consecutive clinical isolates (n=56) were collected in two tertiary car...

Journal: :Journal of bacteriology 1992
M Arthur C Molinas P Courvalin

Plasmid pIP816 of Enterococcus faecium BM4147 confers inducible resistance to vancomycin and encodes the VanH dehydrogenase and the VanA ligase for synthesis of depsipeptide-containing peptidoglycan precursors which bind the antibiotic with reduced affinity. We have characterized a cluster of five genes of pIP816 sufficient for peptidoglycan synthesis in the presence of vancomycin. The distal p...

2014
Katayoun Borhani Ali Ahmadi Fateh Rahimi Mohammad Reza Pourshafie Malihe Talebi

BACKGROUND Sewage treatment plants are considered to be the hotspots for antibiotic resistance transfer among bacterial species. Many fecal bacteria including Enterococci circulate and are exposed to antibiotic residues in this environment. Being as one of the most common cause of nosocomial infections, special concerns have risen worldwide about the rate and characteristics of Enterococci (esp...

Journal: :Antimicrobial agents and chemotherapy 1990
S Dutka-Malen R Leclercq V Coutant J Duval P Courvalin

Gram-positive glycopeptide-resistant bacteria isolated in various hospitals in Europe and in the United States between 1986 and 1988 were collected. Three resistance phenotypes could be distinguished. Thirty-one enterococci were highly resistant to vancomycin and teicoplanin. Resistance was transferable to other enterococci by conjugation for 16 of the 22 isolates that were tested. Homology was...

Journal: :Antimicrobial agents and chemotherapy 2009
Carole Moubareck Djalal Meziane-Cherif Patrice Courvalin Bruno Périchon

VanA-type Staphylococcus aureus strain VRSA-7 was partially dependent on glycopeptides for growth. The vanA gene cluster, together with the erm(A) and the ant(9)-Ia resistance genes, was carried by the ca. 35- to 40-kb conjugative plasmid pIP848 present at five copies per cell. The chromosomal ddl gene had a mutation that led to a N308K substitution in the d-Ala:d-Ala ligase that resulted in a ...

Journal: :The Turkish journal of pediatrics 2008
Belgin Altun A Bülent Cengiz Ateş Kara Mehmet Ceyhan Serhat Unal Gülten Seçmeer Deniz Gür

The first clinical isolate of vancomycin-resistant Enterococcus spp. in Hacettepe University Children's Hospital was isolated from a blood culture of a patient hospitalized in the intensive care unit. He had been on vancomycin therapy for the last four months for consecutive pneumoniae and sepsis. The isolate was identified as Enterococcus faecium (E. faecium) and minimal inhibitor concentratio...

2015
Badrul Hasan Josef D. Järhult

BACKGROUND Vancomycin-resistant enterococci (VRE) have emerged as a growing problem in hospitals; however, domesticated animals, poultry, and wild birds are acting as potential reservoirs. There is a knowledge gap in the Epidemiology of VRE from Bangladesh. METHODS To study the prevalence of VRE and the mechanisms of resistance implicated among wild birds, 238 fecal samples were collected in ...

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