Abstract Title:

Hepatoprotective and antioxidant properties of the aqueous extract of Olea europaea leaves against Diclofenac-induced liver damages in mice.

Abstract Source:

Appl Physiol Nutr Metab. 2018 Apr 20. Epub 2018 Apr 20. PMID: 29677459

Abstract Author(s):

Rawya Soussi, Najla Hfaiedh, Fatma Guesmi, Mohsen Sakly, Khémais Ben Rhouma

Article Affiliation:

Rawya Soussi


Historically, olive tree"Olea europaea"is one of the most important fruit trees in Mediterranean countries. Several studies suggest that olive leaf is a significant source of bioactive phenolic compounds compared to olive oil and fruits. This study was undertaken to investigate, the protective effect of the aqueous extract of« Chemlali » olive leaves against diclofenac-induced damages in liver and haematological alterations in swiss albinos mice. For this, twenty-eight mice were divided into four groups: a control group, a diclofenac-treated group (2.37 mg/kg) for 5 consecutive days, a group orally gavaged with aqueous extract of olive leaves, (3.3g/kg) during 28 days, and a group pre-treated with aqueous extract of olive leaves during 23 days then injected with diclofenac for 5 days. Results obtained from this study revealed that administration of diclofenac alone led to disturbance of some haematological parameters including red and white blood cells (RBC), (WBC) haemoglobin (Hb) and platelets content (PLT). However, diclofenac-treated mice group showed a increasing in the levels of cholesterol, triglyceride, glucose, creatinine, urea, aspartate aminotransferase (ASAT), and alanine aminotransferase (ALAT). Additionally we noted a state of oxidative stress in hepatic tissue indicated by the increasing of lipid peroxidation level (TBARS) and decreasing of superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPX). Interstingly, pre-treatment with olive leaves extract improved the haematological parameters and minimised the adverse effect on the hepatic function markers induced by diclofenac. The beneficial effect of olive leaves could be attributed to its antioxidant components as confirmed by phytochemical analysis.

Study Type : Animal Study

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