نتایج جستجو برای: antibiotic marker free strains
تعداد نتایج: 848093 فیلتر نتایج به سال:
Background: Staphylococcus aureus is a facultative anaerobic Gram-positive coccal bacterium which is frequently found as part of the normal flora on the skin and nasal passages. S. aureus can cause a range of illnesses from minor skin infections to life-threatening diseases. The organism is able to developresistance to a wide range of antibiotics. Resistance to antibiotic is one of th...
Background: Pseudomonas aeruginosa is an opportunistic pathogen and a major cause of nosocomial infections. The aim of this study was to evaluate the frequency and determine the antimicrobial resistance in clinical strains of Pseudomonas aeruginosa isolated from different parts of Tehran hospitals in 2013. Methods: In this cross-sectional study, during the six-month period, 180 samples were ...
The present study was done to evaluate the presence of antibiotic resistance genes in Lactococcus garvieae isolated from cultured rainbow trout, West Iran.The isolates were examined for antimicrobial resistance using disc diffusion method. Of the 24 strains tested, 21 were resistant to ampicillin (87.5%), 9 to erythromycin (37.5%) and 19 to tetracycline (79.1%). Fourteen strains were resistant ...
In our previous study, we demonstrated that the use of the autoluminescent Mycobacterium tuberculosis as a reporter strain had the potential to drastically reduce the time, effort, animals and costs consumed in evaluation of the activities of drugs and vaccines in live mice. However, the strains were relatively unstable and lost reporter with time without selection. The kanamycin selection mark...
Background and Objective: Klebsiella pneumoniae is known as one of the opportunistic pathogens. The prevalence of antibiotic resistance, emergence of multidrug resistant strains, and multiple virulence factors contribute to the development of various infections. In this regard, the aim of this study was to evaluate the frequency of fimH, magA, and rmpA genes among Klebsiella pneumoniae isolates...
In this study a multidisciplinary approach was applied in order to determine the diffusion of resistant bacteria and selected antibiotic resistance genes antibiotic-free conventional broiler farms. Litter samples coming from two farming types surface sponges obtained carcasses at slaughterhouse level were screened by end-point PCR targeting specific for tetracycline, ampicillin, sulfonamide, am...
The pfcrt allelic type and adjacent microsatellite marker type were determined for 82 Plasmodium falciparum isolates from the Philippines. Mutant pfcrt allelic types P1a and P2a/P2b were dominant in different locations. Microsatellite analysis revealed that P2a/P2b evolved independently in the Philippines, while P1a shared common ancestry with Papua New Guinea chloroquine-resistant parasites.
Background: Escherichia coli (E.coli) bacteria are member of Enterobacteriaceae which are one of the common causes of urinary tract infections. Beta-lactamase enzymes are important factors for antibiotic resistance of beta-lactam family in gram-negative bacteria. According to increasing rate of urinary tract infections due to antibiotic resistant E. coli, the aim of this study was to study the ...
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