Résumé
Selenium administration resulted in a marked decrease in the activity levels of the liver succinate dehydrogenase, malate dehydrogenase, and lactate dehydrogenase while pyruvate dehydrogenase increased significantly (P<0.001) in the wistar rat. The degree of decrease of these enzymes was significantly less (P<0.001) when rats were treated with curcumin, a natural constituent Curcuma longa. Curcumin seems to prevent oxidative damage mediated through selenium and protect the dehydrogenases possibly through its anti-oxidative property.
Sujets)
Administration par voie orale , Animaux , Antioxydants/administration et posologie , Curcumine/administration et posologie , Antienzymes/administration et posologie , L-Lactate dehydrogenase/antagonistes et inhibiteurs , Foie/effets des médicaments et des substances chimiques , Malate dehydrogenase/antagonistes et inhibiteurs , Mâle , Rats , Rat Wistar , Sélénium/toxicité , Succinate Dehydrogenase/antagonistes et inhibiteursRésumé
Acephate, an organophosphorus insecticide (60 mg/day/rat) disturbed the carbohydrate metabolism in albino rats (wt. between 100-150 gms). Changes in the enzyme activities in the liver were estimated in the rats after oral administration of Acephate. The specific activities of succinic dehydrogenase was decreased in experimental rats than control. A gradual decrease in blood and liver glutathione was also observed. Increase in total lactate dehydrogenase was also noted. It has been observed that in the liver homogenate of treated rats, the isoenzymes LDH4+5 were increased, LDH1+2 were decreased while LDH3 remain unchanged with respect to control value.