نتایج جستجو برای: clinical isolates
تعداد نتایج: 1225545 فیلتر نتایج به سال:
acquired azole resistance in opportunistic fungi causes severe clinical problems in immunosuppressed individuals. this study investigated the molecular mechanisms of azole resistance in clinical isolates of candida glabrata . six unmatched strains were obtained from an epidemiological survey of candidiasis in immunocompromised hosts that included azole and amphotericin b susceptible and azole r...
Pseudomonas aeruginosa as an opportunistic pathogen produces several virulence factors. The most important of these factors are exotoxin A and type III secretion system (T3SS). The aim of this study was to determine the frequency of toxA, exoU and exoS genes among clinical isolates of P. aeruginosa. In this cross-sectional study from September 2011 to February 2012, 156 P. aeruginosa isolates w...
Objective(s): Stenotrophomonas maltophilia has emerged as an important opportunistic nosocomial pathogen due to its intrinsic and acquired resistance to a wide range of antimicrobial agents. The present study aimed to investigate the occurrence of antibiotic resistance and resistance mechanisms among clinical isolates of S. maltophilia from Iranian patients.<...
Abstract Background: Staphylococcus aureus is one of the most common infectious bacterial pathogens. TSST-1 and enterotoxins are the major virulence factors of this organism which are superantigens and cause the toxic shock syndrome. The toxin-encoding genes are located on pathogenicity islands with the ability to move to non-toxigenic strains. This study was done to determine the frequency of ...
Background & Aim: Antibiotic resistance among gram-negative bacilli is currently one of the major challenges for the health system in developing countries. The aim of this study was to determine the frequency and antibiotic resistance pattern of common ESBL-producing gram negative bacilli isolated from clinical specimens of hospitalized patients in Falsafi Hospital in Gorgan. Methods: In this ...
Background and Purpose: Candida parapsilosis is a predominant species found in nosocomial infection, particularly in hospitalized patients. The molecular epidemiology of the clinical strains of this species has not been well studied. The present study was performed with the aim of investigating the microsatellite genotyping of Candida parapsilosis among the Iranian clinical isolates. Materials...
Background and purpose: The prevalence of antibiotic resistance in Acinetobacter baumannii is increasing worldwide, causing significant clinical problems. This study aimed to determine the antibiotic resistance pattern of clinical A. baumannii isolated from different different wards in Sari hospitals. Materials and methods: This study was performed on 100 clinical A. baumannii isolated from Sa...
Background & Objectives: Staphylococcus aureus is one of the most common nosocomial pathogens with high mortality rates. The Biofilm-dependent methicillin-resistant S. aureus remains a major clinical concern in this group of patients. The aim of this study was to investigate the icaABCD forming biofilm genes in methicillin resistant isolates of S. aureus. Materials and Methods: In study was per...
Introduction: Extended spectrum beta-lactamase (ESBL) producing Escherichia coli generate a major problem for clinical therapeutics and epidemiological study. The incidence of ESBL producing strains among clinical isolates has been steadily increasing during the past few years, and remains an important cause of failure of therapy with cephalosporins. The aim of this study was to determine the a...
conclusions our results indicated that the dissemination of pi-1 was widespread in s. pneumoniae isolates, although no pi-2 isolates were detected. furthermore, the frequency of rlra and rrgc of clinical isolates was significantly more than that of normal flora isolates. results the results confirmed the presence of rlra and rrgc genes in both clinical (n = 39) and normal flora (n = 26) isolate...
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