نتایج جستجو برای: blactx m 2 protein
تعداد نتایج: 3744772 فیلتر نتایج به سال:
مقدمه و هدف: بتالاکتامازهای وسیع الطیف (ESBLs) به عنوان یکی از مهمترین مکانیسمهای مقاومت نسبت به آنتیبیوتیکهای گروه بتالاکتام در باکتریهای گرم منفی شناخته شده و به سرعت در سراسر جهان در حال افزایش هستند. این موضوع به عنوان یکی از مهمترین مشکلات بهداشتی و درمانی نو ظهور در سطح دنیا مطرح است. اشریشیاکلی به عنوان فلور طبیعی دستگاه گوارش نقش مهمی در انتقال ژنهای مقاومت دارد. مصرف روزا...
BACKGROUND Klebsiella pneumoniae strains expressing ESBLs are a predominant cause of hospital acquired infections. Here we describe the molecular epidemiology of these isolates in a tertiary hospital in Tanzania, as potential pathogens for neonatal infections. METHODS Between April 2009 and March 2010 all Klebsiella pneumoniae isolates with phenotypic expression Extended Spectrum Beta Lactama...
OBJECTIVES To characterize a novel ceftazidime-hydrolysing CTX-M mutant, designated CTX-M-54, produced by Klebsiella pneumoniae clinical isolate BDK0419 and to investigate its genetic environment. METHODS Antimicrobial susceptibilities were determined by disc diffusion and agar dilution methods, and the double-disc synergy test was carried out. Detection of genes encoding class A beta-lactama...
Received: 19 Feb, 2013 Accepted: 25 Apr, 2013AbstractBackground & Aims: One of the most prevalent bacterial infections is urinary tract infection (UTI) and Escherichia coli has been isolated from 75-90 percent of UTI cases. On the other hand, the rate of community acquired UTI caused by extended spectrum beta-lactamase producing E. coli, in particular blaCTX-M is increasing worldwide. Therefore...
The aim of this study was to evaluate the population dynamics of CTX-M-producing Enterobacteriaceae in individual pigs on a farm positive for CTX-M-14-producing Escherichia coli. Fecal samples were collected once around the farrowing time from five sows and four times along the production cycle from two of their respective offspring. Multiple colonies per sample were isolated on cefotaxime-supp...
مقدمه و هدف: بتالاکتامازهای وسیع الطیف (esbls) به عنوان یکی از مهمترین مکانیسم های مقاومت نسبت به آنتی بیوتیک های گروه بتالاکتام در باکتری های گرم منفی شناخته شده و به سرعت در سراسر جهان در حال افزایش هستند. این موضوع به عنوان یکی از مهمترین مشکلات بهداشتی و درمانی نو ظهور در سطح دنیا مطرح است. اشریشیاکلی به عنوان فلور طبیعی دستگاه گوارش نقش مهمی در انتقال ژن های مقاومت دارد. مصرف روزافزون آنتی...
5 Abstract Aim: To analyse the occurrence of bla genes (blaIMP, blaVIM, blaGIM, blaSIM, blaSPM, blaPER, blaKPC, and blaOXA) responsible for carbapenemresistance, as well as the presence of cephalosporin-resistance genes (blaCTX-M, blaTEM, blaSHV and blaampC ) by polymerase chain reactions (PCRs). Methods: The study was performed on routine samples subjected to culture and antibiotics susceptibi...
The Dilúvio stream is part of an important watershed in the city of Porto Alegre, southern Brazil. It receives rain runoffs and domestic and hospital sewage, which carries a highly diverse microbial population. Some of these microorganisms may show resistance to different antimicrobials, acting as disseminators of resistance genes. This study characterizes the Gram-negative population present i...
Studies of the transmission epidemiology of antimicrobial-resistant Escherichia coli, such as strains harboring extended-spectrum beta-lactamase (ESBL) genes, frequently use selective culture of rectal surveillance swabs to identify isolates for molecular epidemiological investigation. Typically, only single colonies are evaluated, which risks underestimating species diversity and transmission ...
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