Flavusides A (1) and B (2), two new antibacterial cerebroside derivatives, and the previously described phomaligol A (3), kojic acid (4), methyl kojic acid (5), and dimethyl kojic acid (6) have been isolated from the extract of a marine isolate of the fungus Aspergillus flavus. The structure and absolute stereochemistry of two cerebrosides were assigned on the basis of NMR and Tandem FAB-MS/MS ...

objective(s) staphylococcus aureus is a common cause of human infection, and emergence of vancomycin-resistance s. aureus  is a great concern for treatment of methicillin-resistant s. aureus,(mrsa) in recent years (mrsa). here, we report the isolation of high-level vrsa. materials and methods s. aureus was isolated from foot ulcer of a diabetic woman in tehran, iran. antibiotic susceptibility w...

conclusions we report a high methicillin-resistant s. aureus rate in our hospital. additionally, t030 and t037 were the predominant spa-types among hospital-associated s. aureus. our findings emphasize the need for continuous surveillance to prevent the dissemination of multidrug resistance among different s. aureus protein a types in iran. background the incidence of nosocomial staphylococcus ...

OBJECTIVES We conducted this study to assess the rate of methicillin-resistant Staphylococcus aureus colonization and its association with infection among infants hospitalized in methicillin-resistant S aureus-endemic NICUs. METHODS Between March 2003 and February 2004, surveillance culture specimens from the nares, postauricular areas, axillae, and umbilicus of infants admitted to the NICUs ...

conclusions in the present study, we found a high prevalence of mrsa at the hospitals studied. the findings emphasized the increased prevalence of mrsa isolates containing different toxin and adhesion genes, probably accompanied by antimicrobial resistance. infection with such isolates worsens the clinical outcomes as well as the morbidity and mortality rates in hospitalized patients in icus. m...

Objective(s) Staphylococcus aureus is a common cause of human infection, and emergence of vancomycin-resistance S. aureus  is a great concern for treatment of methicillin-resistant S. aureus,(MRSA) in recent years (MRSA). Here, we report the isolation of high-level VRSA. Materials and Methods S. aureus was isolated from foot ulcer of a diabetic woman in Tehran, Iran. Antibiotic susceptibilit...

Plants used for traditional medicine contain a wide range of substances which can be used to treat various infectious diseases. Hence, antibacterial activities of ethanolic extracts of 19 plant species were studied against multi-drug resistant clinical isolates using agar well diffusion method. Extracts of Liquidambar orientalis, Vitis vinifera,?? ?????????????????????? ????????????????????,...

conclusion a high rate of mrsa in both community- and hospital-acquired infections were observed. background staphylococcus aureus (s.aureus) is an importantpathogen in human infections.some strains of s.aureusare methicillin-resistant (mrsa) andcause hospital- and community-acquired infections in children. the aims of this study were to determine nasalcarriage rate of s. aureus and susceptibil...

Background: Activity of norA efflux pump is one of the antibiotic resistance mechanisms in ciprofloxacin resistant Staphylococcus aureus. In this study, the effect of Artemisia ciniformis extract on reducing the expression of norA efflux pumps gene in ciprofloxacin-resistant Staphylococcus aureus isolates was studied. Materials and Methods: Ciprofloxacin resistant S. aureus isolates, were trea...

background clindamycin is a frequently used antimicrobial therapeutic medicine used for the treatment of skin and soft tissue infections caused by staphylococcus aureus strains. resistance to this antibiotic is either constitutive or inducible. constitutive resistance to clindamycin could be detected by standard susceptibility testing methods. inducible clindamycin resistance could not be detec...