نتایج جستجو برای: clinical isolates

تعداد نتایج: 1225545  

Journal: :medical laboratory journal 0
hesam alizade department of microbiology fatemeh fallah department of microbiology reza ghanbarpour department of microbiology hosein goudarzi department of microbiology hamid sharifi modeling in health research center mohammad reza aflatoonian research center for tropical and infectious diseases

abstract         background and objective: one of the main tasks of clinical microbiology laboratories is to determine antibiotic resistance profiles in common pathogens and ensure the selection of effective antibiotics for certain infections. the aim of this study was to compare the methods of disk diffusion, broth microdilution and modified hodge test in escherichia coli isolates from urinary...

2015
Alice E. Barsoumian Katrin Mende Carlos J. Sanchez Miriam L. Beckius Joseph C. Wenke Clinton K. Murray Kevin S. Akers

BACKGROUND Biofilms are associated with persistent infection. Reports characterizing clinical infectious outcomes and patient risk factors for colonization or infection with biofilm forming isolates are scarce. Our institution recently published a study examining the biofilm forming ability of 205 randomly selected clinical isolates. This present study aims to identify potential risk factors as...

ژورنال: دانشور پزشکی 2015
ایمان عینی, محمد , حسینی, ثاره سادات , صادری, حوریه, نیاکان, محمد,

Background and Objective: Methicillin-resistant Staphylococcus aureus (MRSA) is one of the most common microorganisms that is recovered from clinical bacterial isolates. Clinical and Laboratory Standards Institute (CLSI) recommends usage of cefoxitin when using the disk diffusion method to determine resistance against methicillin for S. aureus. The aim of our study was to evaluate the efficacy ...

برومند, محمدعلی , ستاری, مرتضی , سلیمانی, ندا , محبتی مبارز, اشرف ,

Background and purpose: Escherichia coli is the most prevalent etiologic agent of urinary tract infection. Enzymatic inactivation of aminoglycosides by aminoglycoside-modifying enzymes is the main mechanism of resistance to these antibiotics in E. coli. The aim of this study was detecting the ant(2′′)-Ia gene among aminoglycoside resistant clinical isolates of E. coli using PCR method. Materia...

Asghari, Babak , Bayati, Maral, Habibipour, Reza,

Background and Objective: The role of biofilm formation by bacteria has been considered as an important stage in the pathogenesis of Klebsiella pneumoniae. This pathogen is one of the most important opportunistic pathogen agents of nosocomial infections, such as pneumonia, urinary tract infections, invasive infections, and surgical site infections. This study aimed to investigate the biofilm pr...

Background & Aims: The efflux pumps play an important role in the development of drug resistance in Klebsiella pneumoniae. The aim of this study was to investigate the antibiotic resistance, and the presence of efflux genes, as well as molecular typing in clinical isolates of Klebsiella pneumoniae. Materials & Methods: In this cross sectional descriptive study, a total of 100 K. pneumoniae iso...

Abass Daei Naser Abodolrazagh Hashemi Asghar Havaei Behrooz Ataei Hasan Shojaei, Mohamad Mehdi Feizabadi Parvin Heidarieh

Objective(s) Rapidly growing mycobacteria (RGM) are capable of producing diseases in humans. Since mycobacteria vary in their susceptibility, precise identification is critical for adoption of correct drug therapy. The main aim of this study was molecular identification and evaluation of antimicrobial susceptibility pattern of Iranian clinically isolated Myocbacterium fortuitum. Materials and...

2016
Dorina Timofte Iuliana Elena Maciuca Nicola J. Williams Andrew Wattret Vanessa Schmidt

We characterized extended-spectrum beta-lactamases (ESBLs) and plasmid-mediated quinolone resistance (PMQR) in 32 Escherichia coli extended spectrum cephalosporin (ESC)-resistant clinical isolates from UK companion animals from several clinics. In addition, to investigate the possible dissemination of ESBL clinical isolates within a veterinary hospital, two ESBL-producing E. coli isolates from ...

Journal: :journal of medical bacteriology 0
sepide hassanzadeh biotechnology research center, tehran university of medical sciences, tehran, ir iran. mohammadreza pourmand department of pathobiology, school of public health, tehran university of medical sciences, tehran, ir iran. azar hadadi department of infectious diseases, sina hospital, tehran university of medical science, tehran, ir iran. keramat nourijeylani department of epidemiology and biostatistics, school of public health, tehran university of medical sciences, tehran, ir iran. masoud yousefi department of pathobiology, school of public health, tehran university of medical sciences, tehran, ir iran. rahil mashhadi urology research center, tehran university of medical sciences, tehran, ir iran.

b ackground: methicillin-resistant staphylococcus aureus (mrsa) is the one of most commonly isolated organisms from clinical samples which can cause life- threatening infections. the emergence and spread of antibiotic resistance makes the treatment of these infections more complicated. in this study, we aimed to determine  the  patterns  of  antibiotic  resistance  among  mrsa  isolates  from t...

Journal: :iranian journal of basic medical sciences 0
mahboobeh nakhaei moghaddam department of biology, mashhad branch, islamic azad university, mashhad, iran mehrdad hashemi beidokhti department of biology, science and research branch, islamic azad university, fars, iran saeid amel jamehdar antimicrobial resistance research center, mashhad university of medical sciences, mashhad, iran martha ghahraman medical genetic research center, school of medical science, mashhad, iran

objective(s):blactx-mand blaper are two genes that encode class a extended-spectrum β-lactamases (esbls) and can be responsible for therapeutic problems. this study was carried out to evaluate the molecular properties of these genes in clinical isolates of enterobacteriaceae by polymerase chain reaction (pcr), restriction digestion and sequencing. materials and methods: during six months, start...

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