Effect of pathogenic yeasts on human platelet aggregation



Título del documento: Effect of pathogenic yeasts on human platelet aggregation
Revista: The brazilian journal of infectious diseases
Base de datos: PERIÓDICA
Número de sistema: 000290765
ISSN: 1413-8670
Autors: 1
Institucions: 1Universidade Federal de Santa Catarina, Centro de Ciencias da Saude, Florianopolis, Santa Catarina. Brasil
Any:
Període: Dic
Volum: 7
Número: 6
Paginació: 370-374
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental
Resumen en inglés We investigated the effects of Candida albicans, Cryptococcus neoformans and the respective culture supernatants on human platelet aggregation (PA). Both yeasts were unable to aggregate the platelets directly. On the other hand, cells of these yeasts significantly (P < 0.01) inhibited PA at concentrations equal to or higher than 1 x 10(6) cells/mL for C. albicans and equal to or higher than 1 x 10(5) cells/mL for C. neoformans. When the supernatants of one-week broth cultures were added to the activated platelets no inhibition in aggregation was observed. Apparently somatic components of these yeasts, but not their metabolic products, exert an antagonistic effect on the aggregation of human platelets, possibly aiding the fungi in their evasion of the microbicidal defense system during vascular dissemination
Disciplines Biología,
Química,
Medicina
Paraules clau: Hongos,
Bioquímica,
Hematología,
Candida albicans,
Cryptococcus neoformans,
Agregación plaquetaria
Keyword: Biology,
Chemistry,
Medicine,
Fungi,
Biochemistry,
Hematology,
Candida albicans,
Cryptococcus neoformans,
Platelet aggregation
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