نتایج جستجو برای: esbl extended spectrum beta lactamase
تعداد نتایج: 614710 فیلتر نتایج به سال:
BACKGROUND Resistance to beta-lactams in Haemophilus influenzae is mostly due to the presence of TEM beta-lactamases. beta-Lactamase-negative ampicillin resistance (BLNAR) also occurs as a result of PBP3 modifications. BLNAR strains are particularly common in Japan and France, and strains with combined mechanisms of altered PBP3 and beta-lactamase (BLPACR) are emerging. Although the prevalence ...
Resistance to contemporary broad-spectrum beta-lactams, mediated by extended-spectrum beta-lactamase (ESBL) enzymes, is an increasing problem worldwide. The Etest (AB Biodisk, Solna, Sweden) ESBL screen uses stable gradient technology to evaluate the MIC of ceftazidime alone compared with the MIC of ceftazidime with clavulanic acid (2 micrograms/ml) to facilitate the recognition of strains expr...
Background: Antimicrobial resistance is a growing problem in many bacterial pathogens and is of particular concern for hospital-acquired nosocomial infections. Klebsiella pneumonia is an important cause of nosocomial infections has rapidly become the most common extended spectrum beta-lactamases (ESBLs) producing organism. ESBL are defined as the enzymes capable of hydrolyzing oxyimino-cephalos...
The acquisition of beta-lactamases in members of the Enterobacteriaceae family poses a challenge to antimicrobial susceptibility testing in the clinical laboratory. We correlated the distribution of the MICs for Klebsiella spp. and Escherichia coli with the presence of extended-spectrum beta-lactamase (ESBL) and plasmid-mediated AmpC beta-lactamase (pAmpC) genes. A total of 264 isolates were su...
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...
Background and aim: Antimicrobial resistance is a worldwide problem causing health threats. Escherichia coli is one of the most important bacteria that causes resistance problems. The aim of this study was to evaluate the frequency of Escherichia coli, a extended spectrum beta-lactamase producing CTX-M and SHV, in hospital and non-hospital clinical specimens in Isfahan. Methods: In this stu...
Fresh cheese is one of the most consumed products dairy industry in México. This study aimed to determine frequency, antimicrobial resistance, and genetic characteristics extended-spectrum beta-lactamase (ESBL)-producing Escherichia coli fresh cheese. From samples, E. was isolated production ESBL, antibiotic resistance patterns, frequency genes, relationship were analyzed. Sixty ESBL-producing ...
background extended-spectrum beta-lactamases (esbls) are a group of enzymes that hydrolyze antibiotics, including those containing new cephalosporins, and they are found in a significant percentage of escherichia coli and klebsiella pneumoniae strains. with the widespread use of antibiotics, difficulties with infection therapy caused by drug resistant organisms, especially those that have acqui...
This interventional study with historical controls was conducted to study the effect of cephalosporin restriction on the incidence of extended spectrum beta-lactamase (ESBL) gram negative infections in neonates admitted to intensive care unit. All gram negative isolates from the blood were evaluated for beta lactamase production. The incidence of ESBL production was compared before (year 2007) ...
According to the WHO global report, ESBL (Extended-Spectrum Beta-Lactamase)-producing microorganisms is most common cause of urinary tract infection; hospital-acquired infection as well a foodborne infection. These include Escherichia coli, Salmonella, Shigella and Vibrio cholera. The carbapenems which doripenem, ertapenem, imipenem meropenem are known choice medication for life-threatening inf...
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