Mohammad Reza Arabestani

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BACKGROUND Pseudomonas aeruginosa is one of the most common nosocomial pathogens with high mortality rates. Organisms such as Pseudomonas aeruginosa have the ability to develop high level MDR (Multi drug resistance). The MexAB-OprM system is one of the largest multi-drug resistant efflux pumps with high levels of expression and the first finding of the RND(More)
A total of 200 cell lines including different human, monkey, mice, hamster and rat cell types were examined for mycoplasma infection status. PCR assay using generic-specific universal primers showed that 40 (20%) of the cell lines are contaminated with mycoplasma. Employment of species-specific primers within these infected cell lines revealed infection(More)
OBJECTIVES The aims of our study were to evaluate the prevalence of Staphylococcus aureus (S. aureus) strains in food samples of animal origin, examine their antibacterial susceptibility pattern, and to detect staphylococcal enterotoxin (SEs) genes and the mecA gene in isolated S. aureus strains using the polymerase chain reaction (PCR). . METHODS A total(More)
BACKGROUND Throughout the world, bloodstream infections (BSIs) are associated with high rates of morbidity and mortality. Rapid pathogens identification is central significance for the outcome of the patient than culture techniques for microbial identification. To develop an end point multiplex PCR to identify a group of bacteria including Enterococcus(More)
Background: Enteritis caused by Campylobacter is considered as the most common acute bacterial diarrhea around the world. In most cases, infection occurs as a result of consuming contaminated water or food, especially raw meat of fowls. Objectives: The purpose of the present study was to determine the prevalence and antibiotic resistance of campylobacter(More)
BACKGROUND Urinary tract infection (UTI) is one of the most common childhood bacterial infections and Escherichia coli is the major pathogen. Producing β-lactamase enzymes are the most common mechanism of bacterial resistance. OBJECTIVES This study aimed to determine the prevalence of Extended-Spectrum β-Lactamases (ESBLs) and Quinolone Resistance (qnr)(More)
BACKGROUND Pseudomonas aeruginosa is a common cause of nosocomial infections. It exhibits innate resistance to a wide range of antibiotics. This study was performed to determine clonal characteristic of P. aeruginosa isolated from clinical specimens, hospital means, and hospital personnel by PCR- ribotyping patterns. METHODS A total of 104 P. aeruginosa(More)
Streptococcus agalactiae is acommensalorganism, but it may cause infection in susceptible hosts. The aim of this study was to evaluate PCR assay compared with conventional culture method for direct detection of Streptococcus agalactiae. Total of 203 paired low vaginal swabs were collected from women at 35-37 weeks of pregnancy from June 2013 through(More)
OBJECTIVE Sepsis is a systemic inflammatory response associated with high mortality rates in the clinical setting. A multiplex endpoint polymerase chain reaction (PCR) based assay for rapid detection of enterobacteriaceae involved in septicemia, which included Internal Control (IC) and 16S rDNA, is presented here. To develop a panel of primers for DNA(More)
OBJECTIVES Integrons are thought to play an important role in the spread of antibiotic resistance. This study investigates class 1 and 2 integron-positive methicillin-resistant coagulase-negative staphylococci strains isolated in Iran and characterizes their patterns of antimicrobial resistance. METHODS Hundred clinical isolates of coagulase-negative(More)