نتایج جستجو برای: ampicillin
تعداد نتایج: 7710 فیلتر نتایج به سال:
In Vivo, after administration of treatment, concentrations of antimicrobial agents will reduce to sub-inhibitory levels (sub-MIC) and may therefore affect the properties of target bacteria. The purpose of the present study was to investigate the in vitro effect of sub-minimum inhibitory concentrations (sub-MIC) of ampicillin, gentamicin and nalidixin acid on morphology, growth, ammonium produc...
The in vitro antibacterial activity of cinoxacin was compared with that of ampicillin and chloramphenicol against 26 strains of nontyphoid Salmonella and 44 strains of Shigella. Cinoxacin was found to have a lower minimal inhibitory concentration than ampicillin and chloramphenicol against all Salmonella and Shigella sonnei strains. Cinoxacin had minimal inhibitory concentrations similar to tho...
A total of 104 strains of Haemophilus influenzae isolated from pediatric patients over a 1-year period were tested for susceptibility to moxalactam (LY127935), ampicillin, chloramphenicol, and ticarcillin. Of these strains, 30 produced beta-lactamase. LY127935 inhibited 99% of the strains at a concentration of 0.125 microgram/ml; the remaining strain was inhibited by this antibiotic at 0.25 mic...
Resistance of Escherichia coli to Penicillins I. Genetic Study of Some Ampicillin-Resistant Mutants.
Eriksson-Grennberg, Kerstin G. (University of Uppsala, Uppsala, Sweden), Hans G. Boman, J. A. Torbjörn Jansson, and Sone Thorén. Resistance of Escherichia coli to penicillins. I. Genetic study of some ampicillin-resistant mutants. J. Bacteriol. 90:54-62. 1965.-A number of ampicillin-resistant mutants have been isolated and characterized. Of these strains, two groups have been genetically invest...
The effects of teicoplanin (8 micrograms/ml), ampicillin (64 micrograms/ml), imipenem (32 micrograms/ml), and gentamicin (4 micrograms/ml), alone and in combination, against 13 unique blood isolates of vancomycin-resistance (MIC for 90% of isolates tested [MIC90], 512 micrograms/ml), teicoplanin-susceptible (MIC90, 2.0 micrograms/ml), ampicillin-resistant (MIC90, 128 micrograms/ml), and non-bet...
Ampicillin/Sulbactam is a combination of antibiotics made up of ampicillin, a betalactam and Sulbactam, a betalactamase inhibitor introduced in the eighties. The most frequent used combination is Ampicillin/Sulbactam (ratio 2:1) although the two agents are not synergetic. Ampicillin/Sulbactam has a wide range of antibacterial activity that includes Gram-positive and Gram-negative aerobic and an...
Synergistic antimicrobial effect of various ratios of ampicillin/cloxacillin combinations were investigated on susceptible clinical bacterial isolates of Staphylococcus aureus, Salmonella typhi, Escherichia coli and Proteus spp. Agar diffusion method was employed in the study to determine the potency of the varying ratios of ampicillin/cloxacillin combination. Variation in the zone diameters of...
Due to the emerging antibiotic resistance of Acinetobacter, which is the leading cause of ventilator-associated pneumonia (VAP) in critically ill patients, there is an urgent need for studies comparing various antibiotic regimens for its treatment. In this single blinded randomized clinical trial, adult patients with VAP due to multi drug resistant Acinetobacter (MDRA), were randomly assigned ...
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