alexa The effects of oleuropein aglycone, an olive oil compound, in a mouse model of carrageenan-induced pleurisy.
Environmental Sciences

Environmental Sciences

International Journal of Waste Resources

Author(s): Impellizzeri D, Esposito E, Mazzon E, Paterniti I, Di Paola R,

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Abstract BACKGROUND & AIMS: Several olive oil phenolic compounds, such us oleuropein have attracted considerable attention because of their antioxidant activity, anti-atherosclerotic and anti-inflammatory properties. The aim of this study was to investigate the effects of oleuropein aglycone, a hydrolysis product of oleuropein, in a mouse model of carrageenan-induced pleurisy. METHODS: Mice were anaesthetized and subjected to a skin incision at the level of the left sixth intercostals space. The underlying muscle was dissected and saline or saline containing 2\% λ-carrageenan was injected into the pleural cavity. RESULTS: Injection of carrageenan elicited an acute inflammatory response characterized by: infiltration of neutrophils in lung tissues (P < 0.01 versus sham. P < 0.01 versus carrageenan) and subsequent lipid peroxidation (P < 0.01 versus sham. P < 0.01 versus carrageenan), increased production of tumor necrosis factor-α and interleukin-1β (P < 0.01 versus sham. P < 0.01 versus carrageenan), increased expression of adhesion molecules, increased synthesis of nitric oxide (P < 0.01 versus sham. P < 0.01 versus carrageenan), nitrotyrosine and poly-ADP-ribose (P < 0.01 versus sham. P < 0.01 versus carrageenan). Administration of oleuropein aglycone 30 min after the challenge with carrageenan, caused a significant reduction of all the parameters of inflammation measured. CONCLUSIONS: Thus, we propose that olive oil phenolic constituents may be useful in the treatment of various inflammatory diseases. Copyright © 2011 Elsevier Ltd and European Society for Clinical Nutrition and Metabolism. All rights reserved. This article was published in Clin Nutr and referenced in International Journal of Waste Resources

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