Comparative histopathology of Biomphalaria glabrata, B. tenagophila and B. straminea with variable degrees of resistance to Schistosoma manzoni miracidia
Mem. Inst. Oswaldo Cruz
;
92(4): 517-22, July-Aug. 1997. ilus, tab
Article
Dans Anglais
| LILACS
| ID: lil-193158
ABSTRACT
A comparative histopathological study of three snails species - Biomphalaria glabata, B. tenagophila and B. straminea - which had been infected with Schistosoma mansoni miracidia reveled similar qualitative features, consisting of areas of sporocyst proliferation and differentiation associated with reactive host reaction, at the time they were actively eliminating great number of cercariae. However, in specimens that were exposed to miracidia but failed to eliminate cercariae later on, different histopathological pictures were observed in different snail species. While B. glabrata exhibited frequent focal (granulomatous) proliferation of amebocytes in several organs, B. tenagophila and B. straminea only rarely showed such reative changes, suggesting that the mechanism of resistance to miracidial infection probably follows different pathways in the snail species studied.
Texte intégral:
Disponible
Indice:
LILAS (Amériques)
Sujet Principal:
Schistosoma mansoni
/
Biomphalaria
Type d'étude:
Recherche qualitative
Limites du sujet:
Animaux
langue:
Anglais
Texte intégral:
Mem. Inst. Oswaldo Cruz
Thème du journal:
Médecine tropicale
/
Parasitologie
Année:
1997
Type:
Article
Documents relatifs à ce sujet
MEDLINE
...
LILACS
LIS