An ellagic acid isolated from Clerodendrum viscosum leaves ameliorates iron-overload induced hepatotoxicity in Swiss albino mice through inhibition of oxidative stress and the apoptotic pathway - 25/08/18
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Graphical abstract |
Highlights |
• | Isolation of ellagic acid from Clerodendrum viscosum leaves. |
• | EA showed in vitro free radical scavenging and promising iron chelation properties. |
• | EA treatment restores the level of serum markers, ROS and antioxidant enzymes. |
• | EA re-established cellular morphology, inhibits iron deposition and liver fibrosis. |
• | EA treatment regulates the expression of Bax/bcl-2, caspase 3 and PARP proteins. |
Abstract |
Iron is a vital element required for normal cellular physiology in animal systems, but excess iron accumulation in the biological system accelerates oxidative stress, cellular toxicity, tissue injury and organ fibrosis, which ultimately leads to the generation of chronic liver diseases including cancer. A natural antioxidant, ellagic acid (EA) has been previously reported for its pharmacological properties; however, there is no significant evidence available that could illustrate its protective potential against iron-overload induced hepatotoxicity. In the present work, EA was evaluated for its in vitro free radical scavenging and iron chelation potentials. Further, EA was tested in vivo for its protective activity against iron overload-induced hepatotoxicity in Swiss albino mice by evaluating liver iron content, reactive oxygen species (ROS), liver antioxidant enzymes, serum marker levels, liver damage and fibrosis, histopathological study and finally western blotting analysis. EA treatment significantly decreased liver iron and serum ferritin levels. Elevated ROS levels, decreased antioxidant parameters and elevated serum markers were normalized upon treatment with EA. Cellular morphology, iron -overload and liver fibrosis were found to be effectively ameliorated. Finally, the protective effect of EA against iron overload-induced apoptosis was confirmed by western blotting when its treatment upregulated the expressions of caspase-3 and poly(ADP-ribose) polymerase (PARP) proteins. EA revealed hepatoprotective activity against iron overload-induced toxicity through scavenging free radicals, inhibiting excess ROS production, normalizing liver damage parameters and upregulating caspase-3, PARP expression. Collectively, our findings support the possible use of the natural antioxidant EA as a promising candidate against iron-overloaded diseases.
Le texte complet de cet article est disponible en PDF.Keywords : Iron toxicity, Liver damage, Serum ferritin, Histopathological analysis, Iron chelation, Hepato-protection
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Vol 106
P. 454-465 - octobre 2018 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
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