Background:
Busulfan (Bu) is an anticancer drug with a variety of adverse effects for
cancer patients. Oxidative stress has been considered as a common pathological mechanism and it
has a key role in the initiation and progression of liver injury by Bu.
Aim:
The study aimed to evaluate the antioxidant impact of L-Carnitine and Coenzyme Q10 and
their protective role against oxidative stress damage in liver tissues.
Methods and Material:
Thirty-six albino rats were divided equally into six groups. G1 (con), received
I.P. injection of DMSO plus 1 ml of distilled water daily by oral gavages; G2 (Bu), received
I.P. injection of Bu plus 1 ml of the distilled water daily; G3 (L-Car), received 1 ml of L-Car orally;
G4 (Bu + L-Car) received I.P. injection of Bu plus 1 ml of L-Car, G5 (CoQ10) 1 ml of CoQ10 daily;
and G6 (Bu + CoQ10) received I.P. injection of Bu plus 1 ml of CoQ10 daily.
Results:
The recent data showed that Bu induced significant (P<0.05) elevation in serum ALT,
AST, liver GSSG, NO, MDA and 8-OHDG, while showing significant (P<0.05) decrease in liver
GSH and ATP. On the other hand, L-Carnitine and Coenzyme Q10 ameliorated the negative effects
prompted by Bu. Immunohistochemical expression of caspase-3 in liver tissues reported pathological
alterations in Bu group while also showed significant recovery in L-Car more than CoQ10.
Conclusion:
L-Car, as well as CoQ10, can enhance the hepatotoxic effects of Bu by promoting energy
production in oxidative phosphorylation process and by scavenging the free radicals.