Species distribution and antimicrobial susceptibility of gram-negative aerobic bacteria in hospitalized cancer patients [PDF]
Nosocomial infections pose significant threats to hospitalized patients, especially the immunocompromised ones, such as cancer patients.This study examined the microbial spectrum of gram-negative bacteria in various infection sites in patients with leukemia and solid tumors.
Ashour, Hossam M, El-Sharif, Amany
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Poplar Lignin Decomposition by Gram-Negative Aerobic Bacteria [PDF]
Eleven gram-negative aerobic bacteria ( Pseudomonadaceae and Neisseriaceae ) out of 122 soil isolates were selected for their ability to assimilate poplar dioxane lignin without a cosubstrate. Dioxane lignin and milled wood lignin degradation rates ranged between 20 and 40% of initial content
Odier, E. +2 more
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In vitro activity of ciprofloxacin against aerobic gram-negative bacteria [PDF]
For 177 gram-negative isolates, the MICs for ciprofloxacin ranged from 0.02 microgram/ml (Escherichia coli) to 0.31 microgram/ml (Pseudomonas aeruginosa). In time-kill curves, ciprofloxacin at 8 X the MIC almost completely killed 10(6) CFU of P. aeruginosa by 24 h.
J E, Rudin, C W, Norden, E M, Shinners
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Detection of alternative nitrogenases in aerobic gram-negative nitrogen-fixing bacteria [PDF]
Strains of aerobic, microaerobic, nonsymbiotic, and symbiotic dinitrogen-fixing bacteria were screened for the presence of alternative nitrogenase (N2ase) genes by DNA hybridization between genomic DNA and DNA encoding structural genes for components 1 of three different enzymes.
E, Fallik, Y K, Chan, R L, Robson
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Objective: The purpose of the present study was to isolate, characterize, and evaluate Gram-negative antibiotic bacteria isolated from different clinical samples. Methods: The Clinical and Laboratory Standard Institute guidelines were used to isolate and identify microbial isolates on Muller–Hinton agar using standard bacteriological techniques and to ...
PURIMITLA USHARANI
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Evaluation of Cathra system for identifying gram negative aerobic bacteria. [PDF]
The Cathra system is a commercial multipoint inoculation method for the identification of aerobic Gram negative bacteria. The system uses a replicator technique in which 21 different agar media can be inoculated simultaneously with 36 organisms. Identifications are made by use of a special computer database.
J M, Ling +3 more
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In Vitro Activities of Membrane-Active Peptides against Gram-Positive and Gram-Negative Aerobic Bacteria [PDF]
ABSTRACT Four peptides, cecropin P1, magainin II, indolicidin, and ranalexin, were evaluated against 202 clinical isolates of gram-positive and gram-negative aerobic bacteria by a microbroth dilution method. The gram-negative isolates were more susceptible to cecropin P1.
A, Giacometti +4 more
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Epidemiology of pharyngeal colonization of infants with aerobic gram-negative rod bacteria [PDF]
By using a selective medium, pharyngeal colonization with gram-negative rod (GNR) bacteria was determined in a cohort of 49 normal infants monitored from birth to 6 months of age. Culture swabs were diluted in 1 ml of saline for quantitation. The prevalence of GNR in the first 72 h of life was 8% and rose to 29% during the first month, 52% at 2.5 ...
R S, Baltimore +3 more
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Effect of High Oxygen Tensions on the Growth of Selected, Aerobic, Gram-negative, Pathogenic Bacteria [PDF]
The in vitro effects of high O 2 tensions (P O 2 ) on aerobic, enteric pathogens were examined at pressures of up to 3 atm absolute. Organisms from the genera Salmonella, Shigella , and Vibrio were ...
S F, Gottlieb, L M, Pakman
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HR 756, a New Cephalosporin Active Against Gram-Positive and Gram-Negative Aerobic and Anaerobic Bacteria [PDF]
The in vitro activity of HR 756, 7-[2-(2-amino-4-thiazolyl)-2-(Z)-(methoximino)acetamido] cephalosporanic acid, was investigated against 659 isolates. HR 756 inhibited Neisseria and Haemophilus species at concentrations similar to those needed with ampicillin.
H C, Neu +3 more
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