7 research outputs found

    Risk of Fungemia Due to Rhodotorula and Antifungal Susceptibility Testing of Rhodotorula Isolates

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    Rhodotorula infections occur among patients with immunosuppression and/or central venous catheters. Using standardized methods (NCCLS M27-A), we determined the antifungal susceptibilities of 10 Rhodotorula bloodstream infection isolates. Patient information was collected for clinical correlation. The MICs of amphotericin B and posaconazole were the lowest, and the MICs of triazoles and echinocandins were higher than those of other antifungal agents

    Calcineurin Is Essential for Candida albicans Survival in Serum and Virulence

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    Calcineurin is a calcium-activated protein phosphatase that is the target of the immunosuppressants cyclosporin A and FK506. In T cells, calcineurin controls nuclear import of the NF-AT transcription factor and gene activation. In plants and fungi, calcineurin functions in stress responses (e.g., temperature, cations, and pH) and is necessary for the virulence of the fungal pathogen Cryptococcus neoformans. Here we show that calcineurin is also required for the virulence of another major fungus that is pathogenic to humans, Candida albicans. C. albicans calcineurin mutants had significantly reduced virulence in a murine model of systemic infection. In contrast to its role in C. neoformans, calcineurin was not required for C. albicans survival at 37°C. Moreover, C. albicans calcineurin mutant strains exhibited no defects in known Candida virulence traits associated with host invasion, including filamentous growth, germ tube formation, and adherence to and injury of mammalian cells. C. albicans calcineurin mutant strains failed to colonize and grow in the kidneys of infected animals and were unable to survive when exposed to serum in vitro. Our studies illustrate that calcineurin has evolved to control aspects of the virulence of two divergent fungal pathogens via distinct mechanisms that can be targeted to achieve broad-spectrum antifungal action

    How does a succession influence investment decisions, credit financing and business performance in small and medium-sized family firms?

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    We examine the influence of succession in small and medium-sized family businesses by focusing on investment decisions, credit financing, and business performance. Using data on German SMEs, we find that the succession event affects investment behavior negatively before but positively after the transfer takes place when compared to firms without any succession intentions. With respect to performance, we show that firms’ growth rates increase after succession has taken place. Although hypothesized, we find no empirical evidence to suggest that banks tend to reject successors more often than they reject other business owners when deciding to extend credit to firms for investment purposes

    Cyberlaundering: Concept & Practice

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    Regulating Cyberlaundering

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