Interference of enalaprilat on glomerular permeability to macromolecules (IGG) in acute unilateral ureteral obstruction in rats
Int. braz. j. urol
;
32(2): 216-221, Mar.-Apr. 2006. ilus
Artículo
en Inglés
| LILACS
| ID: lil-429024
RESUMO
INTRODUCTION: Unilateral ureteral obstruction breaks out events that cause the transitory increase of glomerular permeability to macromolecules, both in the obstructed kidney and in the contralateral kidney, suggesting the presence of some factor, with a systemic action, liberated as a response to the obstruction. We know that the rennin-angiotensin system is activated by acute ureteral obstruction. We have developed an experiment to assess the role of angiotensin II on the glomerular permeability to IgG due to acute ureteral obstruction, using enalaprilat, an angiotensin enzyme conversion inhibitor, to block the effects of the activation of the rennin-angiotensin system. MATERIALS AND METHODS: We have used 45 adult Wistar female rats, distributed into 3 main groups: a control group with 5 animals and 2 experiment groups each one with 10 animals submitted to unilateral ureteral obstruction and nephrectomy at 60 and 120 minutes. Each experiment group had its simulation correspondent (sham). We have studied both kidneys through the direct immunofluorescence method. RESULTS: We have found positive permeation in animals without enalaprilat in both kidneys and negative permeation in those in which the drug was used. CONCLUSION: We have concluded that enalaprilat interferes in this alteration of permeability, suggesting that angiotensin II is involved in the loss of selectivity of the glomerular membrane.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Obstrucción Ureteral
/
Inmunoglobulina G
/
Inhibidores de la Enzima Convertidora de Angiotensina
/
Enalaprilato
/
Sustancias Macromoleculares
/
Tasa de Filtración Glomerular
Tipo de estudio:
Estudio pronóstico
Límite:
Animales
Idioma:
Inglés
Revista:
Int. braz. j. urol
Asunto de la revista:
Urología
Año:
2006
Tipo del documento:
Artículo
País de afiliación:
Brasil
Institución/País de afiliación:
Universidade Federal do Rio de Janeiro/BR
Similares
MEDLINE
...
LILACS
LIS