Coenzyme Q10 (
CoQ10) is a component of the mitochondrial electron transport chain and regarded as a strong
anti-oxidant agent. In this study, we focused on the mechanistic insights involved in the hepato-protective effects of
CoQ10 against hepatic
ischemia reperfusion (IR) injury. Our results revealed that
CoQ10 significantly improved hepatic dysfunctions and oxidative stress caused by IR injury. Interestingly, as compared to IR subjected rat,
CoQ10 inhibited apoptosis by marked down-regulation of both Bax and PUMA genes while the level of Bcl-2 gene was significantly increased. Moreover,
CoQ10 up-regulated PI3K, Akt and
mTOR protein expressions while it inhibited the expression of both GSK-3β and β-
catenin. Additionally,
CoQ10 restored
oxidant/
antioxidant balance via marked activated Nrf-2
protein as well as up-regulation of both Sirt-1 and FOXO-3 genes. Moreover,
CoQ10 strongly inhibited inflammatory response through down-regulation of NF-κB-p65 and decrease both JAK1 and STAT-3
protein expressions with a subsequent modulating circulating inflammatory
cytokines. Furthermore, histopathological analysis showed that
CoQ10 remarkably ameliorated the histopathological damage induced by IR injury. Taken together, our results suggested and proved that
CoQ10 provided a hepato-protection against hepatic IR injury via inhibition of apoptosis, oxidative stress,
inflammation and their closed related pathways.