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Abstract Title:

Brain proteomic modifications associated to protective effect of grape extract in a murine model of obesity.

Abstract Source:

Biochim Biophys Acta. 2017 May ;1865(5):578-588. Epub 2017 Mar 6. PMID: 28268123

Abstract Author(s):

Selima Smine, Antoine Obry, Safwen Kadri, Julie Hardouin, Manuel Fréret, Mohamed Amri, Thierry Jouenne, Ferid Limam, Pascal Cosette, Ezzedine Aouani

Article Affiliation:

Selima Smine

Abstract:

In recent years, the obesity epidemic has developed into a major health crisis worldwide. With current treatments limited to expensive, high-risk surgery and minimally efficacious pharmacotherapy, new therapeutic options are urgently needed to fight against this alarming trend. Though brain dysfunction has been studied linked to high fat diet (HFD) and grape seed and skin extract (GSSE) correction, the proteomic modifications linking the two effects on brain lipotoxicity are not well understood. To this end rats were exposed for 8 weeks to HFD treatment, to GSSE (500mg/kg BW) and to binary mixture of HFD and GSSE to gain insight into the potential pathways altered with metabolic disease and the protection afforded by GSSE. Significant modifications of brain proteins were detected using mass spectrometry-based differential proteomics. These proteins were mainly related to oxidative stress, glycolysis and calcium signaling. Additionally, proteins involved in the cytoskeleton were also affected by HFD treatment. Interestingly, whether up- or down regulated protein abundances, GSSE corrected most of the disturbances of HFD treatment. These findings provide impetus for future therapeutic investigation on GSSE against other metabolic disorders.

Study Type : Animal Study

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Sayer Ji
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