Periódicos Brasileiros em Medicina Veterinária e Zootecnia

p. 247-254

Does alfa lipoic acid prevent liver from methotrexate induced oxidative injury in rats?

Çakır, TurulBaştürk, AhmetPolat, CemalAslaner, ArifDurgut, HimmetŞehirli, Ahmet ÕzerGül, MehmetVelioğlu Õğünç, AylizGül, SemirSabuncuoglu, Mehmet ZaferOruç, Mehmet Tahir

PURPOSE: To determine the antioxidant and anti-inflammatory effects of alfa lipoic acid (ALA) on the liver injury induced by methotrexate (MTX) in rats.METHODS:Thirty two rats were randomly assigned into four equal groups; control, ALA, MTX and MTX with ALA groups. Liver injury was performed with a single dose of MTX (20 mg/kg) to groups 3 and 4. The ALA was administered intraperitonealy for five days in groups 2 and 4. The other rats received saline injection. At the sixth day the rats decapitated, blood and liver tissue samples were removed for TNF-, IL-1, malondialdehyde, glutathione, myeloperoxidase and sodium potassium-adenosine triphosphatase levels measurement and histological examination.RESULTS: MTX administration caused a significant decrease in tissue GSH, and tissue Na+, K+ ATPase activity and which was accompanied with significant increases in tissue MDA and MPO activity. Moreover the pro-inflammatory cytokines (TNF-, IL- ) were significantly increased in the MTX group. On the other hand, ALA treatment reversed all these biochemical indices as well as histopathological alterations induced by MTX.CONCLUSION:Alfa lipoic acid ameliorates methotrexate induced oxidative damage of liver in rats with its anti-inflammatory and antioxidant effects.(AU)

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