Schistogram changes after administration of antischistosomal drugs in mice at the early phase of Schistosoma mansoni infection
Mem. Inst. Oswaldo Cruz
; 108(7): 881-886, 1jan. 2013. tab
Article
en En
| LILACS
| ID: lil-696010
Biblioteca responsable:
BR1.1
ABSTRACT
Mice infected with Schistosoma mansoni were treated with oxamniquine, praziquantel, artesunate at the pre-patent phase, aiming at observing schistogram alterations. Half of the animals were perfused five days post-treatment for counting and classification of immature worms, based on pre-established morphological criteria (schistogram); the remaining animals were evaluated 42 or 100 days after infection and perfusion of the portal-system was performed for collection and counting of adult worms and oogram. It was observed that oxamniquine and artesunate treatment administered at the pre-postural phase causes significant reduction in the number of immature and adult worms. However, there was little reduction with praziquantel when used at the dose of 400 mg/kg for treatments administered 14, 15, 21 or 23 days post-infection. Artesunate was responsible for significant alterations in development of young worms, as well as for a higher number of worms presenting intestinal damages. Immature adult worms were detected in mice treated with artesunate or oxamniquine at the pre-patent phase of infection and recovered by perfusion 100 days after infection. Schistogram proved to be a very useful tool for experimental evaluation of the activity of antischistosomal drugs and a good model to identify the most sensitive stages to drugs.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
LILACS
Contexto en salud:
3_ND
Problema de salud:
3_neglected_diseases
/
3_zoonosis
Asunto principal:
Schistosoma mansoni
/
Esquistosomicidas
/
Esquistosomiasis mansoni
/
Artemisininas
Tipo de estudio:
Prognostic_studies
Límite:
Animals
Idioma:
En
Revista:
Mem. Inst. Oswaldo Cruz
Asunto de la revista:
MEDICINA TROPICAL
/
PARASITOLOGIA
Año:
2013
Tipo del documento:
Article
País de afiliación:
Brasil