نتایج جستجو برای: broth microdilution tests
تعداد نتایج: 348078 فیلتر نتایج به سال:
Rifaximin is a rifampicin derivative, poorly absorbed by the gastro-intestinal tract. We studied the in vitro susceptibility to rifamixin of 1082 Clostridium difficile isolates; among these, 184 isolates from a strain collection were tested by an in-house rifaximin disc (40 µg) diffusion test, by an in-house rifaximin broth microdilution test, by rifampicin Etest and by rpoB gene sequencing. In...
The surge in the prevalence of Multidrug-Resistant (MDR) Gram-negative bacterial infections with limited treatment led to colistin reusing treat MDR infections. This study aimed determine economical, simple, and reliable susceptibility testing methods as an alternative microdilution technique. We compared seven methods, including quantitative qualitative, namely: Disk diffusion, E-test, ComASPT...
Comparison of three methods for in vitro susceptibility testing of Candida species with flucytosine.
Optimal methods for susceptibility testing of Candida spp. with flucytosine have not been determined. Breakpoints were recommended in 1984, but never validated. In this study, we compared the 1984 recommended macrodilution broth method (using an 80% endpoint) with a modification of the more recent NCCLS-recommended microdilution broth method with three endpoints-spectrophotometric 50% and 80% a...
Background and Objective: Efflux pumps are one of the major resistance mechanisms in Pseudomonas aeruginosa that inhibit the accumulation of antibiotics in bacterial cells. The aim of this study was determining the effect of carbonyl cyanide 3-chlorophenyl hydrazone (CCCP) and detecting the overexpression of pump MexCD-oprJ in P. aeruginosa isolated from burn patients in Shahid Motahari hospita...
objective(s) rapidly growing mycobacteria (rgm) are capable of producing diseases in humans. since mycobacteria vary in their susceptibility, precise identification is critical for adoption of correct drug therapy. the main aim of this study was molecular identification and evaluation of antimicrobial susceptibility pattern of iranian clinically isolated myocbacterium fortuitum. materials and m...
Several Flavobacterium species, comprising a heterogeneous group of gram-negative bacilli that are capable of causing opportunistic infections in humans, have recently been reclassified as Chryseobacterium or Myroides species. Intrinsically resistant to a number of antibiotics, these organisms have been reported to be susceptible to vancomycin and certain other drugs that are normally active ag...
A multicenter study was conducted to assess the inter- and intralaboratory reproducibility of the Etest for susceptibility testing of the rapidly growing mycobacteria. The accuracy also was evaluated by comparing Etest results to those obtained by broth microdilution. Ten isolates (four of the Mycobacterium fortuitum group, three of Mycobacterium abscessus, and three of Mycobacterium chelonae) ...
A multicenter study was conducted to expand the generation and analysis of data that supports the proposal of a reference method for the antifungal susceptibility testing of filamentous fungi. Broth microdilution MICs of amphotericin B and itraconazole were determined in 11 centers against 30 coded duplicate pairs of Aspergillus spp., Fusarium spp., Pseudallescheria boydii, and Rhizopus arrhizu...
In this study, we have evaluated the broth microdilution method (BMM) for susceptibility testing of Mycobacterium tuberculosis. A total of 43 clinical isolates of M. tuberculosis and H37Rv as a control strain were studied. All isolates were tested by the proportion method and the BMM for isoniazid (INH), rifampicin (RIF), streptomycin (STR), and ethambutol (ETM). The proportion method was carri...
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