Hemolytic activity of Trichomonas vaginalis and Titrichomonas foetus
Mem. Inst. Oswaldo Cruz
;
91(1): 107-10, Jan.-Feb. 1996. tab
Article
Dans Anglais
| LILACS
| ID: lil-164145
RESUMO
The hemolytic activity of live isolates and clones of Trichomonas vaginalis and Tritrichomonas foetus was investigated. The isolates were tested against human erythrocytes. No hemolytic activity was detected by the isolates of T. foetus. Whereas the isolates of T. vaginalis lysed erythrocytes from all human blood groups. No hemolysin released by the parasites could be detected. Our preliminary results suggest than hemolysis depend on the susceptibility of red cell membranes to destabilization and the intervention of cell surface receptors as a mechanism of the hemolytic activity. The mechanism could be subject to strain-species-genera specific variation of trichomonads. The hemolytic activity of T. vaginalis is not due to a hemolysin or to a product of its metabolism. Pretreatment of trichomonads with concanavalin A reduced levels of hemolysis by 40 por cento.
Texte intégral:
Disponible
Indice:
LILAS (Amériques)
Sujet Principal:
Trichomonas vaginalis
/
Concanavaline A
langue:
Anglais
Texte intégral:
Mem. Inst. Oswaldo Cruz
Thème du journal:
Médecine tropicale
/
Parasitologie
Année:
1996
Type:
Article
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