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cryptococcosis/protease
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[Stableness of the alkaline protease of the fungus Torula thermophila strain UzPT-1 to heating and the action of Ca2+ ions].
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Thermal stability of protease of the fungus Torula thermophila strain UzPT-1 was examined. The dependence of this property on the content of monomer and dimer forms in the preparation was also investigated. The preparations with a high content of the dimer form showed greater thermal stability in
[Multiplicity of molecular forms and thermostability of Torula thermophila UzPT-1 protease].
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Alkaline protease preparations with different ratio of molecular forms are isolated from cultural medium of thermophilic fungi Torula thermophila UzPT-1 by means of protein fractionation with (NJ/)2SO4 and gel filtration through Sephadex G-75. The enzyme preparations differ in their thermostability
[Partial purification and properties of protease from Torula thermophila].
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11-Fold purified protease preparation is isolated from cultural medium of Torula thermophila UzPT-1 by means of ammonium sulphate precipitation and gel chromatography through Sephadex G-100. Disc polyacrylamide gel electrophoresis revealed two portease components, one of them possessing proteolytic
Identification and characterization of an aspartyl protease from Cryptococcus neoformans.
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Cryptococcosis, caused by Cryptococcus neoformans, is an invasive infection often occurring in AIDS patients. Potent therapy against HIV, which includes protease inhibitors (PIs), has beneficial effects also on opportunistic infections by pathogens such as C. neoformans and C. albicans. PIs inhibit
Cutaneous cryptococcosis in athymic and beige-athymic mice.
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The dermotropism of Cryptococcus neoformans SLHA in congenitally athymic (nu/nu) and doubly immunodeficient beige-athymic (bg/bg-nu/nu) mice is described. Both bg/bg-nu/nu and nu/nu mice developed cutaneous cryptococcosis within 7 to 12 days following intravenous challenge with 10(4) encapsulated
Evidence for interference by immune complexes in the serodiagnosis of cryptococcosis.
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The latex agglutination test was used to compare cryptococcal antigen titers before and after protease treatment in 19 patients with pulmonary cryptococcosis. Antigen was detected by the LA test in 13 of 33 serum samples before protease treatment, and in an additional 13 samples following treatment.
[Mycological and serological diagnosis of cryptococcosis].
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Methods for the diagnosis of cryptococcosis have been established, including serotyping and serodiagnosis. Slide agglutination tests with factor sera, the phenol oxidase test, and the growth test at 37C are used for rapid identification of Cryptococcus neoformans. We identified 140 strains and found
Mediastinitis due to cryptococcal infection: a new clinical entity in the HAART era.
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OBJECTIVE
Highly active antiretroviral therapy (HAART) produces a rapid decline in plasma HIV-1 RNA levels with concomitant immune reconstitution. Probably due to the enhanced immune function, shortly after starting HAART, some latent opportunistic infections precipitated. The aim of this study was
Extracellular glycosylphosphatidylinositol-anchored mannoproteins and proteases of Cryptococcus neoformans.
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Extracellular proteins of Cryptococcus neoformans are involved in the pathogenesis of cryptococcosis, and some are immunoreactive antigens that may potentially serve as candidates for vaccine development. To further study the extracellular proteome of the human fungal pathogen Cry. neoformans, we
Frequency of oropharyngeal candidiasis in HIV-infected patients on protease inhibitor therapy.
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OBJECTIVE
The purpose of this study was to investigate the effect of HIV-1 protease inhibitors on the frequency of oropharyngeal candidiasis in HIV-infected patients.
METHODS
A clinical and analytic follow-up was carried out to determine the number of episodes of oropharyngeal candidiasis during
Induction of brain microvascular endothelial cell urokinase expression by Cryptococcus neoformans facilitates blood-brain barrier invasion.
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The invasive ability of the blood-borne fungal pathogen Cryptococcus neoformans can be enhanced through interactions with host plasma components, such as plasminogen. Previously we showed by in vitro studies that plasminogen coats the surface of C. neoformans and is converted to the active serine
The spleen in acquired immunodeficiency syndrome (AIDS).
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72 spleens from AIDS patients were studied by histologic and immunohistochemical methods. Apart from the opportunistic infections and malignancies typically occurring in AIDS patients (malignant lymphomas, Kaposi's sarcoma, mycobacterial infections, cryptococcosis, cytomegalovirus infections)
[Phenotype characterization of environmental Cryptococcus neoformans isolates].
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Cryptococcosis is caused by the three varieties of C. neoformans with physiological and virulence differences, some of which have been studied to determine biological aspects of this microorganism. The phenotypical aspects of environmental isolates from varieties grubii and gattii were evaluated to
Simple and rapid method for the detection of Filobasidiella neoformans in a probiotic dairy product by using loop-mediated isothermal amplification.
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Yeast contamination is a serious problem in the food industry and a major cause of food spoilage. Several yeasts, such as Filobasidiella neoformans, which cause cryptococcosis in humans, are also opportunistic pathogens, so a simple and rapid method for monitoring yeast contamination in food is
Encapsulation of Cryptococcus neoformans regulates fungicidal activity and the antigen presentation process in human alveolar macrophages.
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Our previous studies have shown that unstimulated alveolar macrophages (AM) play a predominant role as antigen-presenting cells in Cryptococcus neoformans infections, while the function as effector cells seems to be of minor relevance. The present study focuses on the role of encapsulation of C.
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