| bacterial survey of well water--tehran, iran. | one hundred twenty-one wells throughout the city of tehran were monitored during the four seasons of the year for the presence of bacterial indicators of fecal pollution. none of the sites monitored was connected to tehran's main water distribution system but represented drinking water sources for small communities, individual factories, hospitals, etc. only 17 samples showed no indication of fecal bacterial contamination throughout the study. the remaining sites were positive for at least one o ... | 1987 | 3608933 |
| phenotypic characteristics and population genetics of enterococcus faecalis cultured from patients in tehran during 2000-2001. | conventional bacteriology techniques were used to identify enterococci isolates cultured from patients at different hospitals in tehran during 2000-2001. the identification was confirmed using species-specific pcr targeting the d-alanyl-d-alanine ligase gene. a total of 59 isolates of enterococcus faecalis were identified. the rates of resistance to different antibiotics were in the following order: penicillin 84%, ciprofloxacin 42%, high-level gentamicin 30%, nitrofurantoin 14%, imipenem 4%, an ... | 2003 | 14663499 |
| evaluation of the 10th external quality assessment scheme results in clinical microbiology laboratories in tehran and districts. | we evaluated the performance of microbiology laboratories in the 10th run of the external quality assessment scheme (eqas) in tehran and districts. each laboratory was sent 2 species of bacteria for identification. of the 487 laboratories that participated, 437 returned their findings. while 77.0% and 69.9% correctly identified staphylococcus saprophyticus and citrobacter freundii respectively, only 29.8% correctly identified acinetobacter baumanii, 25.3% identified enterococcus faecalis and 35. ... | 2006 | 17037699 |
| prevalence of aminoglycoside-modifying enzymes genes among isolates of enterococcus faecalis and enterococcus faecium in iran. | disks containing 120 microg of gentamicin were used to detect high-level gentamicin-resistant phenotype (hlgr) among isolates of enterococcus faecalis (n = 79) and e. faecium (n = 35). these isolates were collected from three hospitals in tehran during 2002-2004. the macrobroth dilution assay was then used to determine the minimum inhibitory concentration (mic) of gentamicin. the susceptibility of isolates against amikacin, netilmicin, tobramycin, and kanamycin were also determined by kirby-baue ... | 2006 | 17227212 |
| distribution of enterococcal species and detection of vancomycin resistance genes by multiplex pcr in tehran sewage. | enterococci are important because of their role as the leading cause of nosocomial infections which have a significant role in the dissemination and persistence of antimicrobial resistance genes. | 2007 | 18051776 |
| characterization of glycopeptides, aminoglycosides and macrolide resistance among enterococcus faecalis and enterococcus faecium isolates from hospitals in tehran. | the prevalence of glycopeptides, aminoglycosides and erythromycin resistance among enterococcus faecalis and enterococcus faecium was investigated. the susceptibility of 326 enterococcal hospital isolates to amikacin, kanamycin, netilmicin and tobramycin were determined using disk diffusion method. the minimum inhibitory concentration (mic) of vancomycin, teicoplanin, gentamicin, streptomycin, and erythromycin were determined by microbroth dilution method. the genes encoding aminoglycoside modif ... | 2008 | 18646406 |
| anti-microbial resistance of enterococci isolated from urinary tract infections in iran. | during the last decade, enterococci have become important nosocomial pathogens, representing the second leading cause of urinary tract infections. this increasing prevalence has been paralleled by the occurrence of multi-drug resistant (mdr) and high-level gentamicin resistant (hlgr) strains. | 2008 | 18762823 |
| transposon tn5281 is the main distributor of the aminoglycoside modifying enzyme gene among isolates of enterococcus faecalis in tehran hospitals. | infections with high levels of gentamicin-resistant (hlgr) isolates of enterococcus faecalis are common in tehran hospitals. genes encoding such resistance are transmissible by conjugation at high frequency. the purpose of this study was to determine the existence of tn5281 and its flanking aminoglycoside modifying enzyme gene aac(6')-aph(2") among 102 hlgr isolates of e. faecalis cultured from patients at three hospitals in tehran, iran. these isolates were detected by disks containing 120 micr ... | 2008 | 18923558 |
| study of bacterial infections among the patients with suspected cutaneous leishmaniasis. | the main objective of this study was to evaluate the prevalence of secondary bacterial infections in the patients with cutaneous lesions. the patients admitted to leishmaniasis laboratory of faculty of health, tehran university of medical sciences from october 2004 to june 2005 were subjected in this study. clinical samples were analyzed using standard bacteriological and parasitological methods. one hundred seventy three patients were subjected to this study and leishmania was found in 84 (48.5 ... | 2007 | 19093532 |
| the homogeneity of vanb gene cluster among enterococcal isolates in iran. | this study aimed to analyse the diversity of the vanb gene cluster in enterococcal species isolated from sewage treatment plants (stp) in tehran, iran. | 2009 | 19141035 |
| identification of aminoglycoside resistance genes by triplex pcr in enterococcus spp. isolated from icus. | early detection of antibiotic-resistant enterococci is an important part of patient treatment. therefore, the aim of the present study was to evaluate the resistance patterns and simultaneously identify and characterise the resistance genes in enterococcus spp. using a triplex polymerase chain reaction (pcr) method. in all, 150 consecutive enterococcus spp were collected from several hospitals in tehran (iran) from january to december 2015. the enterococcus species were identified by standard ph ... | 2016 | 27668903 |
| clonal spread of vancomycin resistance enterococcus faecalis in an iranian referral pediatrics center. | vancomycin-resistant enterococci (vre) represent as an immediate threat to public health. since few active compounds are available for vre infections, rapid identification of these isolates are essential. in the absence of any report on the genetic relatedness of enterococcus faecalis especially vancomycin-resistant e. faecalis (vref) isolates in iran, we undertook this study to characterize these isolates using random amplification of polymorphic dna (rapd-pcr) genotyping method. in this study, ... | 2013 | 24396988 |
| molecular epidemiology and antibiotic resistance patterns of enterococcus faecalis isolates from hospitals in tehran. | enterococcus faecalis is one of the most important causative agents of nosocomial infections. control and prevention of these infections require appropriate epidemiological knowledge. this study investigated the correlation between molecular characteristics and drug resistance of e. faecalis isolates from local hospitals. a total of 125 isolates of enterococcus faecalis from two hospitals in tehran were identified by using culture and biochemical method. an antibiotic resistance assay was carrie ... | 2017 | 28603229 |