Effect of pathogenic yeasts on human platelet aggregation
Braz. j. infect. dis
; Braz. j. infect. dis;7(6): 370-374, dez. 2003. tab, graf
Article
in En
| LILACS
| ID: lil-357647
Responsible library:
BR1.1
ABSTRACT
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.
Full text:
1
Collection:
01-internacional
Database:
LILACS
Main subject:
Candida albicans
/
Platelet Aggregation
/
Cryptococcus neoformans
Limits:
Humans
Language:
En
Journal:
Braz. j. infect. dis
Journal subject:
DOENCAS TRANSMISSIVEIS
Year:
2003
Document type:
Article
Affiliation country:
Brazil
Country of publication:
Brazil