نتایج جستجو برای: ژن blashv

تعداد نتایج: 16142  

2014
Mailis Laht Antti Karkman Veiko Voolaid Christian Ritz Tanel Tenson Marko Virta Veljo Kisand

Antibiotics and antibiotic resistant bacteria enter wastewater treatment plants (WWTPs), an environment where resistance genes can potentially spread and exchange between microbes. Several antibiotic resistance genes (ARGs) were quantified using qPCR in three WWTPs of decreasing capacity located in Helsinki, Tallinn, and Tartu, respectively: sulphonamide resistance genes (sul1 and sul2), tetrac...

Journal: : 2021

Objective(s): β- lactamases enzymes are well studied in literature since they lead to β-lactam resistance among many pathogens, hence global concern of human and animal health issues is rising. The aim study detect these kinds some gram negative bacteria isolated locally. Material methods: 30 isolate each negatives Citrobacter spp., Serratia Enterobacter spp. were obtained from different clinic...

Journal: :Journal of the Hellenic Veterinary Medical Society 2023

Escherichia coli (E. coli) is a zoonotic bacterial pathogen commonly found in human, birds and animals. The widespread use of broad-spectrum beta-lactams for poultry treatment, has resulted the production extended spectrum β-lactamases (ESBLs) E. coli. In this study, we analyzed antimicrobial resistance pattern isolates from broiler chickens ducks with clinical colibacillosis, investigated pres...

2008
Simona Bratu David Landman Don Antonio Martin Claudiu Georgescu John Quale

Acinetobacter baumannii strains resistant to all -lactams, aminoglycosides, and fluoroquinolones have emerged in many medical centers. Potential mechanisms contributing to antimicrobial resistance were investigated in 40 clinical isolates endemic to New York City. The isolates were examined for the presence of various -lactamases, aminoglycoside-modifying enzymes, and mutations in gyrA and parC...

Journal: :Hippokratia 2013
A Taherpour A Hashemi

BACKGROUND & AIM The aim of this study was the detection of OqxAB efflux pumps, OmpK35 and OmpK36 porins among extended-spectrum-β-lactamase-producing Klebsiella pneumoniae isolates from Iran. MATERIALS AND METHODS This study was conducted with 83 K. pneumoniae isolates from two hospitals in Tehran, Iran. Antibiotic susceptibility tests were performed by Kirby-Bauer disc diffusion and Broth M...

2012
Mahboobeh Nakhaei Moghaddam Mohammad Mahdi Forghanifard Sheila Moshrefi

OBJECTIVES 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 On...

Journal: :Cureus 2023

Introduction The high prevalence of urinary tract infections (UTIs) and rising resistance to beta-lactam antibiotics, which is a global therapeutic concern, are caused by Escherichia coli (E. coli) extended-spectrum beta-lactamases (ESBLs) producers. It unclear how E. that produces ESBLs spreads throughout Gezira state, Sudan. study aimed evaluate the dissemination class A D genes among recogni...

Hamid Abtahi, Iraj Pakzad Mohammad Rahbar, Morovat Taherikalani, Neda Mansory Jamshidi Norkhoda sadeghifard Sohbhan Ghafourian,

Objective(s) Extensive use of quinolones has been associated with raising level of resistance. In the current, we focused on assessing the prevalence of Escherichia coli resistance to quinolones and frequency of qnrA, qnrB and qnrS in non ESBLs (extended spectrum beta-lactamases) and ESBLs producing E. coli with blaSHV and blaTEM. Materials and Methods One hundred and fifty E. coli isolates ...

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