نتایج جستجو برای: clinical strains
تعداد نتایج: 1293004 فیلتر نتایج به سال:
patients and methods two-hundred and fifty-five clinical specimens were collected from four major provinces of iran. samples were cultured and the mrsa strains were subjected to polymerase chain reaction (pcr). the patterns of antibiotic resistance were determined using the disk diffusion method. results seventy-four out of 255 (29.01%) clinical samples were positive for mrsa. of the 74 mrsa st...
background : unfortunately, antibiotic resistance has become an increasingly critical problem in many countries like iran. since there are very few published data on antibiotics resistance in alborz province, the aim of this study was to survey the pattern of antimicrobial resistance and prevalence detection of tem-type beta-lactamases among clinical isolates of escherichia coli using univer...
Pseudomonas aeruginosa possesses a polar flagellum made up of flagellin subunits that encoded by fliC gene. Flagellin from several strains of P. aeruginosa on the basis of reaction with polyclonal antibodies and apparent molecular weight was divided into a or b types. Material and Methods: After extraction of the genomic DNA from two standard strains 8821M (Type a) and PAO1 (Type b) and some c...
objective: methicillin-resistant staphylococcus aureus is a major cause of nosocomial and community-acquired infections. aminoglycosides are potent bactericidal agents that are often used in combination with either a β-lactam or a glycopeptide, especially in the treatment of staphylococcal endocarditis. the main mechanism of aminoglycoside resistance in staphylococci is drug inactivation by cel...
background and objective: methicillin resistance in staphylococcus aureus is an increasingly important clinical problem. a chromosomal gene, meca, mediates resistance to penicillinase-resistant penicillins such as methicillin and oxacillin in staphylococcus aureus. we evaluated the validity of disk diffusion test by using oxacillin, methicillin and cefoxitin disks with consideration of the pres...
background: to asses the status of two representative genes of cag pai i.e caga and cage of helicobacter pylori strains infecting iranian patients suffered from various clinical outcomes using one-step pcr. methods: a total of 120 h. pylori infected patients including non-ulcer dyspepsia, nud (n=81), peptic ulcer disease, pud (n=17), and gastric carcinoma, gc (n= 22) referred for endoscopy or g...
Backgrounds and Objectives: True cholera with typical clinical features nearly always occurs by serologic groups O1 and O139 but the non-O1 group can produce a disease with same clinical characteristic sporadically. According to the important of climate and environmental conditions in the distribution and abundance of Vibrio cholera, in this study, the distribution of the serologic group was ev...
Background and Objectives: Methicillin-resistant Staphylococcus aureus (MRSA) is a major cause of nosocomial and community acquired infections. Detection of MRSA in laboratories is very important for treatment and appropriate infection control. The aim of this study was to evaluate cefoxitin disk diffusi...
Background and Objectives: Staphylococcal enterotoxin D as a supper antigen is produced by infected samples of human and animal sources. The aim of this study was to standardize the detection methods for the Staphylococcus strain producing enterotoxin D. Materials and Methods: A PCR method was set up for detection of enterotoxin D gene (ent D) in Staphylococcus aureus samplesisolated from the h...
Background and Aims: The most important factor for pathogenicity of Staphylococcus epidermidis is the ability to produce biofilm. Identification of biofilm-forming strains using an appropriate method and recognizing the mechanisms of biofilm formation can help understand the proper use of artificial medical equipment and prevent increased drugs resistance . The aim of this study was to 1) evalu...
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