ABSTRACT       Background and Objective: Extended-spectrum beta-lactamases (ESBL) are widely produced by Escherichia coli strains. The aim of this study was to determine frequency of blaOXA-1 and blaSHV genes in E.coli strains isolated from patients hospitalized in city of Rasht, Iran.        Methods: In this cross-sectional study, ...

objective(s) extended-spectrum beta-lactamase (esbl) producing bacteria have an important role in nosocomial infections. due to the limited availability of information about the molecular epidemiology of esbl producing bacteria in mashhad, we decided to investigate about tem, ctx and shv esbls among urinary escherichia coli isolates in mashhad, a city in northeast iran. materials and methods   ...

Objective(s): Escherichia coli is the key pathogen in the family producing ESBL (extended spectrum β-lactamase) and associated with community-acquired infections. Therefore, this study was planned to determine the antibiotic susceptibility pattern of uropathogenic E. coli, prevalence of the ESBL gene group and class 1 integrons.Materials and Methods: Clinical isolates of uropathogenic E. coli w...

The present study was conducted to detect the occurrence, serotype, genotype, phylogenetic relationship and antimicrobial resistance pattern of STEC from healthy goats of West Bengal, India. From the 125 faecal samples collected from healthy goats, 245 isolates were identified as Escherichia coli. The E. coli harbouring any gene for Shiga toxins (stx1/stx2) was detected in 36 (14.7%) of the 245...

coq10 and lycopene are isoprenoid compounds with nutraceutical and pharmaceutical benefits. in this study, the effect of concomitant lycopene biosynthesis on coq10 accumulation in transformed escherichia coli dh5α was studied. a lycopene production pathway including geranylgeranyl diphosphate synthase (crte), phytoene synthase (crtb), and phytoene desaturase (crti) from erwinia herbicola was co...

background : the emergence and increase in the incidence of extended-spectrum beta lactamase (esbl) producing escherichia coli has become an emerging challenge especially in hospitalized patients with uti. the aim of the present study was to survey the frequency of bla ctx-m genotype in esbl producing e. coli isolated from hospitalized patients with uti and determination of their antibiotic res...

conclusions the β-lactamase disk test is appropriately sensitive to detect esbls in mdr isolates of e. coli. background most urinary tract infections (utis) are caused by escherichia coli (e. coli) species. due to infections outbreaks of e. coli strains with multiple mechanisms of resistance to β-lactam antibiotics, the sensitivity of confirmatory tests to detect the extended spectrum β-lactama...

The present study was conducted to gain insights into the occurrence and characteristics of extended-spectrum beta-lactamase- (ESBL-) producing Escherichia coli (E. coli) from drinking well water in the rural area of Laiwu, China, and to explore the role of the nearby pit latrine as a contamination source. ESBL-producing E. coli from wells were compared with isolates from pit latrines in the vi...

BACKGROUND Urinary tract infection (UTI) caused by resistant bacteria is becoming more prevalent. Few studies are available regarding community-onset UTIs caused by extended-spectrum β-lactamase (ESBL)-producing bacteria in children. MATERIALS AND METHODS During a 5-year period, hospitalized children with community-onset UTI caused by ESBL-producing Escherichia coli (case) and those with non-...

BACKGROUND Knowledge of the clinical features of infections caused by Escherichia coli strains that produce plasmid-mediated AmpC beta-lactamase is limited. Of the several groups of plasmid-mediated AmpC beta-lactamases, CMY-type beta-lactamase is the most common in the United States. METHODS We prospectively identified patients infected or colonized with E. coli strains that produce CMY-type...