Abstract
Alcohol-induced oxidative stress plays a crucial role in the pathological development of alcoholic liver disease. The aim of this study was to investigate the effects of triterpenoid from Schisandra chinensis on oxidative stress in alcohol-induced liver injury in rats. We found that the administration of triterpenoid attenuated alcohol-induced oxidative stress in multiple organs including liver. Moreover, the impaired liver function and histological changes resulted from alcohol consumption was improved by triterpenoid treatment. Finally, we found that pretreatment with triterpenoid from Schisandra chinensis to alcohol-fed rats increased the expression level of haem oxygenase-1 (HO-1) while inhibited the induction of cytochrome P-450 2E1 (CYP2E1) in liver microsomes. Further assays revealed that the microsomal activity of HO-1 was accordingly induced whereas CYP2E1 was suppressed in rats received triterpenoid intervention. Our findings suggest that triterpenoid from Schisandra chinensis may protect against alcohol-induced liver injury through ameliorating oxidative stress in rats.
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