The Anti-inflammatory Effect of Polyphenolics Olive Leaf Extracts Olea europaea L.

This study was to evaluate the anti-inflammatory effect of the polyphenolic extract of olive leaves Olea europaea L. In vivo experiments were performed on the model of acute inflammation edema of the paw of male Wistar rats following inflammation induced by the injection of carrageenan. The anti-inflammatory effect is carried out by the injection of the polyphenolic extracts of olive leaves Olea europaea L. at different doses 50 mg/kg, 100 mg/kg and 150 mg/kg, the injection was carried out 30 min before induction of acute inflammation with carrageenan at 1%. The results obtained were compared with those of Diclofenac and those of the physiological control. Injection of carrageenan resulted in a significant increase in the claw leg volume of 46.24 ± 23.8%, 66.78 ± 29.69% and 90.31 ± 46.51%, respectively at 1 h, 2 h, and 3 h. The results showed that the inflammatory activity of the polyphenolic extracts of olive leaves was dose dependent. The 150 mg/kg Olea europaea L. extract of polyphenolic has an anti-inflammatory activity which results in an 88% decrease in edema. This decrease is significantly similar to that of Diclofenac® 97% confirmed that the polyphenolic extracts of Olea europaea L. leaves have anti-inflammatory activities comparable to that of Diclofenac® with a non-significant difference (p < 0.05), this anti-inflammatory effect remains lower than that of Diclofenac®.