Melatonin protects against renal oxidative stress after obstructive jaundice in rats.
Eur J Pharmacol
; 425(2): 135-9, 2001 Aug 10.
Article
em En
| MEDLINE
| ID: mdl-11502279
ABSTRACT
The goals of this study were to analyze the renal oxidative status in experimental biliary obstruction and to evaluate the impact of melatonin on renal oxidative stress. Cholestasis was done by double ligature and section of the extra-hepatic biliary duct. Melatonin was injected i.p. (500 microg/kg/day). Malondialdehyde, reduced glutathione, catalase, superoxide dismutase, glutathione reductase, glutathione peroxidase and glutathione transferase were determined in the renal tissue. After biliary obstruction, an increase in malondialdehyde (P<0.0001) and a fall in reduced glutathione (P<0.0001) were seen. Moreover, the scavenger enzyme activity had significantly diminished. After melatonin administration, the malondialdehyde fell significantly (P<0.0001), whereas reduced glutathione showed an important increase (P<0.0001) compared with the ligated bile duct group. Experimental bile duct obstruction was associated to an increase of renal oxidative stress. Treatment with melatonin decreased the renal lipid peroxidation, and both the reduced glutathione as well as the scavenger enzyme activity recovered.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Colestase
/
Substâncias Protetoras
/
Melatonina
/
Antioxidantes
Limite:
Animals
Idioma:
En
Revista:
Eur J Pharmacol
Ano de publicação:
2001
Tipo de documento:
Article
País de afiliação:
Espanha