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  • Title: Moderate chronic administration of Vineatrol-enriched red wines improves metabolic, oxidative, and inflammatory markers in hamsters fed a high-fat diet.
    Author: Romain C, Bresciani L, Gaillet S, Feillet-Coudray C, Calani L, Bonafos B, Vidé J, Rugani N, Ramos J, Del Rio D, Cristol JP, Rouanet JM.
    Journal: Mol Nutr Food Res; 2014 Jun; 58(6):1212-25. PubMed ID: 24585438.
    Abstract:
    SCOPE: High-fat (HF) diets contribute to the development of cardiovascular diseases and the metabolic syndrome. This study was undertaken to investigate the beneficial effects of Vineatrol®-enriched red wines on blood lipids, oxidative stress and inflammation, and the role of some metabolic pathway regulatory proteins. METHODS AND RESULTS: Golden Syrian hamsters received an HF diet for 13 wk, in the presence or absence of red wines supplemented with Vineatrol® (RWV) or not. The HF diet increased plasma cholesterol, triglycerides, glucose, and insulin, which were attenuated by RWV treatment. RWV protected against the HF-induced increase in liver nicotinamide adenine dinucleotide phosphate (NADPH) oxidase activity and spared antioxidant enzyme activities. RWV did not reduce either liver steatosis or increased plasma leptin due to the HF diet, but greatly improved adiponectinemia. In the liver, RWV affected the inflammatory response by decreasing polymorphonuclear cell number and lowering TNF-α and IL-6 levels. Moreover, the increase in NF-κB activity in the HF group liver was prevented by RWV. Finally, RWV partially corrected low SIRT1 levels due to the HF diet but had no influence on SIRT3 or p-AMPK protein levels. CONCLUSION: Our studies suggest that RWV is capable of reversing the atherogenic process induced by an HF diet in hamster tissues.
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