Mycobacterium Kansasii
Mostrando 37-48 de 206 artigos, teses e dissertações.
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37. Heterogeneity and clonality among isolates of Mycobacterium kansasii: implications for epidemiological and pathogenicity studies.
The reservoir and transmission route of Mycobacterium kansasii are largely unknown. In addition, culturing of M. kansasii from human sources is not proof of disease because it may represent colonization rather than infection. Unfortunately, investigation of the epidemiology and pathogenicity of M. kansasii is complicated by evidence of heterogeneity within t
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38. Evaluation of reformulated chemiluminescent DNA probe (AccuProbe) for culture identification of Mycobacterium kansasii.
A panel of 104 isolates belonging to the species Mycobacterium kansasii and 78 mycobacterial isolates belonging to other species was tested in parallel with the present commercially available DNA probe (AccuProbe; Gen-Probe) and with a new probe just developed by the same manufacturer. While the old version of the probe confirmed the previously reported low
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39. Pulmonary Mycobacterium kansasii infection: comparison of radiological appearances with pulmonary tuberculosis.
BACKGROUND: A study was undertaken to determine if there are differences in the radiological appearances at presentation between pulmonary infections caused by Mycobacterium kansasii and Mycobacterium tuberculosis. Correct recognition of the organism has important implications with regard to initial therapy and contact tracing. METHODS: The initial chest rad
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40. Mycobacterium kansasii: its presentation, treatment and outcome in HIV infected patients.
AIM: To report the clinical significance and treatment of Mycobacterium kansasii infection in the context of HIV disease. DESIGN/METHODS: Retrospective case review of all isolates of M kansasii until June 1994. RESULTS: Ten cases of M kansasii were isolated. All but one patient with this infection had clinical symptoms compatible with generalised infection.
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41. Identification of Mycobacterium kansasii by Susceptibility to Hydroxylamine
Among biochemical tests useful in the study of mycobacteria, the hydroxylamine test is shown to be an effective tool in the differentiation of Mycobacterium kansasii from saprophytic strains of group III acid-fast bacilli when combined with the photochromogen test.
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42. Carotenoid Pigments of Mycobacterium kansasii
Partitioned between aqueous methanol and petroleum ether, the unsaponifiable pigments of Mycobacterium kansasii were all epiphasic. Thin-layer chromatography of these carotenoids showed that M. kansasii formed at least nine pigments. These pigments were identified by their chromatographic properties and spectral characteristics as phytoene, ζ-carotene, neur
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43. Differential Identification of Mycobacterium kansasii and Mycobacterium marinum
This report deals with the differential diagnosis between Mycobacterium marinum and M. kansasii. We found that the two species could be differentiated by using six main tests, namely, the nitrate reduction test, the arylsulfatase test, the ability to grow in the presence of 10.0 μg of amithiazone per ml, the ability to grow in the presence of 5.0 μg of kan
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44. Aminoglycoside Resistance in Mycobacterium kansasii, Mycobacterium avium-M. intracellulare, and Mycobacterium fortuitum: Are Aminoglycoside-Modifying Enzymes Responsible?
Aminoglycoside acetyltransferase was detected in Mycobacterium kansasii and M. fortuitum but not in M. avium-M. intracellulare when they were screened by a radioassay. Aminoglycoside phosphotransferase and nucleotidyltransferase activities were absent from all three species tested. Acetyltransferases from both M. kansasii and M. fortuitum displayed relativel
American Society for Microbiology.
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45. Clinical Implications of Mycobacterium kansasii Species Heterogeneity: Swiss National Survey
Several subtypes of Mycobacterium kansasii have been described, but their respective pathogenic roles are not clear. This study investigated the distribution of subtypes and the pathogenicity of M. kansasii strains (n = 191) isolated in Switzerland between 1991 and 1997. Demographic, clinical, and microbiological information was recorded from clinical files.
American Society for Microbiology.
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46. Isolation of a DNA probe for identification of Mycobacterium kansasii, including the genetic subgroup.
In order to develop a DNA-based assay to identify all Mycobacterium kansasii clinical isolates, a specific DNA probe was isolated in plasmid p6123. A total of 145 M. kansasii clinical isolates were collected from several countries and were examined with three probes by DNA hybridization. Of the 145 isolates, 115 (79%) were positive with the previously descri
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47. Evaluation of nonradioactive DNA probes for identification of mycobacteria.
Commercial chemiluminescent DNA probes (Accuprobe; Gen-Probe, San Diego, Calif.) for the identification of Mycobacterium tuberculosis (MTB) complex, M. avium complex (MAC), M. gordonae, and M. kansasii were evaluated with 134 clinical isolates. These included 36 MTB complex, 40 MAC, 27 M. gordonae, 9 M. kansasii, and 22 Mycobacterium spp. The specificity was
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48. Improved technique for isolation of Mycobacterium kansasii from water.
A new concentration procedure, together with a new isolation medium, resulted in a 10- to 100-fold increase in the possibility of identifying Mycobacterium kansasii from water samples in comparison to a previously used procedure. In a survey which included both potable and natural water samples from many sites within the state of Texas, nine isolations of hi