introduction: listeria monosytogenes is a gram-positive organism, frequently found in the environment and is responsible for serious food-born diseases such as perinatal infections, septicaemia and meningoencephalitis in humans and animals. materials & methods: distribution of the ctpa determinant among l. monosytogenes isolated from environmental and clinical samples was investigated using pcr...

background: the main goal of the present study was to set up an axenic cultivation of acanthamoeba and assess the pathogenic ability of t4 genotypes from different clinical and environmental strains of acanthamoeba using two physical assays. methods: sixteen acanthamoeba isolates including 10 environmental and 6 clinical strains were cul-tured axenically. axenic cultivation was performed using ...

background rapid detection of resistant strains of helicobacter pylori in human clinical samples is of major importance in clinical settings. inability of conventional clinical laboratory techniques in detection of these strains usually leads to failure of prescribed therapeutic regimens. objectives the aim of this study was designing a simple and rapid allele-specific pcr (as-pcr)-based method...

a study was performed to determine the species and antimicrobial susceptibility of 100 enterococcus strains from various clinical specimens as etiological agents at the clinical microbiology laboratory, istanbul university, medical faculty hospital. out of 100 enterococcal isolates, 86 were identified as e. faecalis, 11 as e. faecium, 1 as e. avium and 2 as e. raffinosus. by the disk diffusion ...

Objective: In recent years, there has been an increasing interest in using herbal products to overcome bacterial resistance. The aim of this study was to investigate the effect of lemon verbena aqueous extract, verbascoside and caffeine in combination with gentamicin against standard and clinical isolates of Staphylococcus aureus and Escherichia coli strains. Materials and Methods: The MIC and ...

background the evidence of rapid spread of multidrug resistant mycobacterium tuberculosis (mdr–tb) strains especially in high risk communities, persuade clinicians to find new drugs for this problem. β– lactams with few or no side effects has been reviewed as an alternative drugs for this issue. this study carried out to determine the effectiveness of amoxicillin–clavulanate in a group of irani...

background and objective: nowadays, the presence of extended-spectrum β-lactamases (esbls) producing strains in serratia genus causes the emergence of resistance to many antibiotics. so, the lack of proper diagnosis of esbls strains can lead to failure in the treatment. the objective of the present study was to investigate esbls production in serratia strains isolated from the clinical blood sa...

conclusions pmf-dependent efflux mechanism appears to play an important role in the mdr phenotype of a. baumannii clinical strains. background multidrug-resistant (mdr) strains of acinetobacter baumannii have been increasingly reported as a major cause of nosocomial infections, and have created major therapeutic problems worldwide. objectives the aim of the present study was to evaluate the rol...

Background: Multi-drug resistant (MDR) Citrobacter freundii (C. freundii) as a causative agent of nosocomial infections is a health threat, especially in hospitals. This study was conducted to determine the prevalence of MDR C. freundii, considering isolation sites and a variety of utilized antibiotics. Materials and Methods: In this cross-sectional study, the clinical samples of C. freundii s...