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Abstract Title:

Neuroprotective benefits of grape seed and skin extract in a mouse model of Parkinson's disease.

Abstract Source:

Nutr Neurosci. 2019 May 25:1-15. Epub 2019 May 25. PMID: 31131731

Abstract Author(s):

Sarah Ben Youssef, Guillaume Brisson, Hélène Doucet-Beaupré, Anne-Marie Castonguay, Charles Gora, Mohamed Amri, Martin Lévesque

Article Affiliation:

Sarah Ben Youssef

Abstract:

Parkinson's disease is a neurodegenerative disorder characterized by the progressive loss of midbrain dopaminergic (mDA) neurons in the substantia nigra pars compacta, and it involves oxidative stress. Our goal was to evaluate the neuroprotective effect ofred grape seed and skin extract (GSSE) in a model of Parkinson's disease. GSSE is very rich in phenolic compounds, such as flavonoids, anthocyanins, catechins and stilbenes, which are present in the pulp, seeds, and leaves of the fruit. GSSE is known for its antioxidant properties and has shown beneficial effects against oxidative injury in different organs, such as the kidneys, liver, heart and brain. In this study, we revealed the neuroprotective effect of GSSE on midbrain dopaminergic neurons bothand. We used the neurotoxin 6-hydroxydopamine (6-OHDA), which induces oxidative damage and mimics the degeneration of dopaminergic neurons observed in Parkinson's disease. We found that GSSE was effective in protecting dopamine neurons from 6-OHDA toxicity by reducing apoptosis, the level of reactive oxygen species (ROS) and inflammation. Furthermore, we found that GSSE treatment efficiently protected against neuronal loss and improved motor function in an6-OHDA model of Parkinson's disease (PD). Altogether, our results show that GSSE acts at multiple levels to protect dopamine neurons from degeneration in a model of PD.

Study Type : Animal Study

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