نتایج جستجو برای: cryptococcus neoformans
تعداد نتایج: 7372 فیلتر نتایج به سال:
Nylon wool-nonadherent splenic cells from 7- to 8-week-old CBA mice were further fractionated on discontinuous Percoll gradients. Enrichment of natural killer (NK) cells in Percoll fractions 1 and 2 was confirmed by morphological examination, by immunofluorescent staining, and by assessing the cytolytic activity of each Percoll cell fraction against YAC-1 targets in the 4-h51Cr release assay. C...
Two cases of Cryptococcus neoformans infection are described, both complicating chronic renal failure. In one case the use of prednisone and immunosuppressive drugs may have predisposed to infection.
The global mortality due to cryptococcosis caused by Cryptococcus neoformans or C. gattii is unacceptably high. Currently available therapies are decades old and may be impacted by drug resistance. Therefore, the need for more effective antifungal drugs for cryptococcosis is evident. A number of Cryptococcus virulence factors have been studied in detail, providing crucial information about the ...
Latex beads coated with anti-Cryptococcus neoformans antibody were agglutinated by serum from a bone marrow transplant recipient having a disseminated infection caused by Trichosporon beigelii. The cryptococcal latex agglutination titer in the serum of the patient rose to 1:2,560 by the time of his death. Necropsy confirmed the disseminated Trichosporon infection and absence of C. neoformans. C...
Cryptococcosis is a major fungal disease caused by members of the Cryptococcus gattii and Cryptococcus neoformans species complexes. After more than 15 years of molecular genetic and phenotypic studies and much debate, a proposal for a taxonomic revision was made. The two varieties within C. neoformans were raised to species level, and the same was done for five genotypes within C. gattii. In a...
Objetivo: El objetivo de este estudio fue aislar levaduras pertenecientes al complejo especies Cryptococcus neoformans los excrementos paloma Castilla (Columba livia) recolectados plazas y parques públicos Salvador. Métodos: Las muestras se sembraron en medios cultivos convencionales a las colonias confirmadas les efectuó una tipificación mediante la técnica restricción enzimática del gen URA5....
Background: C. neoformans traverse across the BBB to penetrate into the brain. Results: C. neoformans activates RhoGTPases and subsequently PKC, FAK and ezrin in HBMEC. Conclusion: Activation of host signaling proteins promotes Cryptococcus crossing across the BBB. Significance: Elucidation of the host signaling events that contributes to cryptococcal BBB traversal is important for a better un...
Cryptococcosis caused by encapsulated yeast Cryptococcus neoformans most commonly presents as disease of the central nervous system. Cryptococcus is a non-mycelial budding yeast found in soil, pigeon droppings and their nesting places. The three 'classic' virulence factors of cryptococci are: polysaccharide capsule, melanin production and growth at 37°C. Here, we present a rare case of cryptoco...
BACKGROUND Both Cryptococcus neoformans and Cryptococcus gattii have been isolated from a variety of environmental sources in Colombia. AIM To determine the viability of C. neoformans/C. gattii isolates in stored soil samples, filtrates and bird droppings from which these yeasts were previously recovered. METHODS A total of 964 samples collected between 2003 and 2009, and kept at room tempe...
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