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J Neurol Sci. 2007 Nov 15;262(1-2):77-84. Epub 2007 Aug 14.

Chlorogenic acid, a polyphenol from Prunus domestica (Mirabelle), with coupled anxiolytic and antioxidant effects.

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Ethnobotanique et Pharmacologie/ Anxiété, Stress Oxydant et Bioactivité, Université P. Verlaine Metz, BP 4102, 57040, Metz Cedex 01, France.



Oxidative stress is linked to neurodegenerative diseases, cancer, cardiovascular diseases and to some behaviors, such as anxiety and depression. In particular, recent research observed a close relationship between oxidative stress and anxiety.


We investigated the anxiolytic effect of chlorogenic acid, a dietary antioxidant present in fruits, in mouse models of anxiety including the light/dark test, the elevated plus maze and the free exploratory test. Moreover, the antioxidative effect of chlorogenic acid on peripheral blood granulocytes was investigated.


Chlorogenic acid (20 mg/kg) induced a decrease in anxiety-related behaviors suggesting an anxiolytic-like effect of this polyphenol. The anti-anxiety effect was blocked by flumazenil suggesting that anxiety is reduced by activation of the benzodiazepine receptor. In vitro, chlorogenic acid protected granulocytes from oxidative stress.


Chlorogenic acid is one of the most abundant polyphenols in fruits. We demonstrated in vivo and in vitro for the first time, that chlorogenic acid has anxiolytic effects coupled with antioxidant activity. Thus, fruits such as plums (Mirabelle), apples and cherries may provide health-promoting advantages to consumers.

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