نتایج جستجو برای: clinical strains
تعداد نتایج: 1293004 فیلتر نتایج به سال:
Background: Reduced susceptibility of Clostridium difficile to antibiotics is problematic in clinical settings. There is new evidence indicating the cotransfer of toxin-encoding genes and conjugative transposons encoding resistance to antibiotics among different C. difficile strains. To analyze this association, in the current study, we evaluated the frequency of toxigenic C. difficile among th...
it is not clear what factors determine divergent outcomes of infections caused by h. pylori . in the present study, the protein profiles of different strains of h. pylori, isolated from three groups of patients with ulcerative disease, non-ulcerative gastritis and cancer disease, were analyzed using 1dsds-page. the patterns of different h. pylori strains were highly divergent. about 30.76% (7 b...
Background and objectives: Urinary tract infection is one of the most nosocomial infections with different antibiotic resistance pattern. This study was aimed to investigate the pattern of susceptibility and resistance of uropathogenic E. coli strains that had been isolated from those who referred to the private laboratories in Khorram-Abad city. Materials and Methods: This empirical s...
Pseudomonas aeruginosa is an important multi-drug resistant (MDR) opportunistic bacterium. 102 strains of Pseudomonas aeruginosa equally isolated from human and cow milk were subjected to Multiplex-PCR for detection of ESBLs and exoenzymes of U, T, S, OprI, and OprL, Integrons class A encoding genes and genotyping by the ERIC-PCR and PFGE methods. The disc diffusion and E-test based on CLSI (Cl...
background bacterial resistance to antibiotics has become a major source of concern for public health. pseudomonas aeruginosa strains are important opportunistic pathogens. these bacteria have a high resistance to a wide range of existing antimicrobials and antibiotics. objectives the present study was performed to evaluate the frequency of kpc in p. aeruginosa isolated from clinical samples of...
The present report aimed to perform a molecular epidemiological survey by investigating the presence of virulence factors in E. faecalis isolated from different human clinical (n = 57) and food samples (n = 55) in Porto Alegre, Brazil, collected from 2006 to 2009. In addition, the ability to form biofilm in vitro on polystyrene and the β-haemolytic and gelatinase activities were determined. Cli...
Abstract Background and Objective: Increasing prevalence of methicillin resistant Staphylococcus aureus strains (MRSA) with their multidrug resistance potential causes difficulties in the treatment of infections due to these bacteria. Hence, the detection and determination of the frequency of MRSA strains via phenotypical and molecular methods is necessary in different parts of the county. ...
Background and purpose: Rotational use of antibiotics can decrease antibiotic resistance in Staphylococcus aureus strains. The present study aimed to evaluate the alteration of oxacillin resistance in methicillin-resistant Staphylococcus aureus (MRSA) strain carrying SCCmec III cassette in long-term evolutionary experiments in an antibiotic-free medium. Materials and methods: In a cross-sectio...
Background: Development of antibiotic resistance or multidrug (MDR) is one the major causes treatment failure bacterial infections and has rapidly evolved into a threat to global health care. Bacterial efflux pumps play significant role in development resistance. This study evaluates prevalence pump- mediated drug clinical isolates P. aeruginosa.Methods: Clinical (n=100) aeruginosa were collect...
background: although candida albicans remains the most common fungal isolate from clinical specimens, many studies have detected a shift towards non-albicans candida species. despite worrying clinical pictures associated with latter species , there is little information regarding its susceptibility patterns against currently available antifungal agents, with only a small number of strains ha...
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