نتایج جستجو برای: coccidioides
تعداد نتایج: 720 فیلتر نتایج به سال:
Urease produced by Coccidioides posadasii contributes to the virulence of this respiratory pathogen.
Urease activity during in vitro growth in the saprobic and parasitic phases of Coccidioides spp. is partly responsible for production of intracellular ammonia released into the culture media and contributes to alkalinity of the external microenvironment. Although the amino acid sequence of the urease of Coccidioides posadasii lacks a predicted signal peptide, the protein is transported from the...
Uncovering the correct phylogeny of closely related species requires analysis of multiple gene genealogies or, alternatively, genealogies inferred from the multiple alleles found at highly polymorphic loci, such as microsatellites. However, a concern in using microsatellites is that constraints on allele sizes may occur, resulting in homoplasious distributions of alleles, leading to incorrect p...
Posaconazole (SCH 56592) was tested against 25 strains of Coccidioides immitis to determine their in vitro susceptibilities. The geometric mean 48-h MIC of posaconazole (POSA) was 0.5 microg/ml, the MIC range was 0.25 to 1 microg/ml, and the MIC at which 50% of the isolates tested are inhibited (MIC50) and the MIC90 were 0.5 and 1 microg/ml, respectively. The geometric mean 48-h MIC of itracona...
Detection of antibody to Coccidioides immitis F antigen is of proved value in the diagnosis of coccidioidomycosis. This antibody is demonstrable by use of an immunodiffusion assay with reference coccidioidin antigen and antiserum to C. immitis. Using a combination of lectin affinity and immunoaffinity chromatography, we isolated the F antigen from coccidioidin and prepared monospecific antibody...
We report the case of a 16-year-old female with genetic immunodeficiency in whom pulmonary coccidioidomycosis became disseminated. Most infections due to Coccidioides immitis are self-limited and resolve over a period of weeks to months without specific treatment. In rare cases, especially those associated with immunodeficiency, the disease is found outside the confines of the chest cavity. In ...
The ubiquinone (coenzyme Q) systems of eleven strains of Coccidioides immitis were determined by high performance liquid chromatography (HPLC). The ubiquinone profile of the fungi was shown to be homogeneous: in all of the strains, ubiquinone-10 (Q-10) was demonstrated to be the major component, with Q-9 as a minor component. The results imply that the ubiquinone system may serve as an addition...
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