نتایج جستجو برای: acinetobacter baumanniiextended spectrum betalactamasesintegron class i
تعداد نتایج: 1587296 فیلتر نتایج به سال:
Abstract Aim and Background: Actually Acinetobacter baumanii is the most common cause of nosocomial infection. Recent studies detected some classes of integrons in A. baumannii multi-Drug resistance (MDR) isolates. Integron classes introduced the most important pathway for the dissemination resistance genes and the emergence of MDRs species in Acinetobacter. The aims of t...
b ackground : acinetobacter baumannii , is an important opportunistic pathogens responsible for nosocomial infections. the aim of this experiment was to determine prevalence of class i integron in a. baumannii strains isolated from burn patients in mottahari hospital and the drug susceptibility pattern. methods : there were 69 acinetobacter isolates, 68 (98.5%) were i...
New extended-spectrum beta-lactamase GES-11 was detected in Acinetobacter baumannii BM4674. The enzyme conferred resistance to beta-lactams, including aztreonam, and reduced susceptibility to carbapenems. The structural gene was part of a class 1 integron borne by self-transferable plasmid pIP847. GES-type beta-lactamases have not been reported previously in A. baumannii.
OBJECTIVES To determine the genetic basis for tetracycline and sulphonamide resistance and the prevalence of class I and II integrons in oxytetracycline-resistant Acinetobacter spp. from integrated fish farms in Thailand. METHODS A total of 222 isolates were screened for tetracycline resistance genes [tet(A), tet(B), tet(H), tet(M) and tet(39)] and class II integrons by PCR. One hundred and t...
Class I integrons were detected in 40.8% (40/98) of Pseudomonas aeruginosa strains and 52.8% (56/106) of Acinetobacter baumannii strains in the Nanjing area of China, including several cassette arrays not previously reported.
The expanded-spectrum beta-lactamase (ESBL) gene bla(VEB-1), identified worldwide in Enterobacteriaceae and Pseudomonas aeruginosa, is associated with either class 1 integrons or repeated elements. We report here the first association of bla(VEB-1a) with the insertion sequence ISCR2 in six Acinetobacter species isolates recovered from Argentina. That genetic structure was likely at the origin o...
An AmpC-type beta-lactamase conferring high-level resistance to expanded-spectrum cephalosporins and monobactams was characterized from an Acinetobacter baumannii clinical isolate. This class C beta-lactamase (named ADC-33) possessed a Pro210Arg substitution together with a duplication of an Ala residue at position 215 (inside the Omega-loop) compared to a reference AmpC cephalosporinase from A...
Background and purpose: Extended spectrum beta lactamases (ESBLs) are important causes of multidrug resistance (MDR) Escherichia coli. ESBL genes are usually located on conjugative plasmids or on integron structures. The aim of this study was to detect ESBLs on class I integron in Escherichia coli isolated from clinical samples. Materials and methods: A descriptive cross-sectional study was ...
The genus acinetobacter are intestinal gram negative, encapsulated, non motile, aerobic bacilli, which are rod shaped during rapid growth and cocobacillary in stationary phase. Risk factors associated with nosocomial infections include: length of hospital stay, surgery, wounds, previous infection, fecal colonization, treatment with broad spectrum antibiotics, parenteral nutrition, indwelling ce...
b ackground : a cinetobacter spp. emerged as an opportunistic pathogen for hospital-acquired infections. recently, increasing antibiotic resistance among acinetobacter spp. has worsened the problem. the aim of this study was to investigate the emerging trend of infection due to acinetobacter in ghaem university hospital, mashhad during 2006-2012. methods : the demographic data and infor...
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