WAC 2022 banner
IVES 9 IVES Conference Series 9 WAC 9 WAC 2022 9 4 - WAC - Oral presentations 9 A nutraceutical based on mediterranean diet with omega-3 fatty acid and resveratrol from grapewine counteracts ocular degenerative diseases

A nutraceutical based on mediterranean diet with omega-3 fatty acid and resveratrol from grapewine counteracts ocular degenerative diseases

Abstract

More recently, studies have shown that polyphenols could also prevent or improve vision in patients with ocular diseases and especially Age-related macular degeneration (AMD) which is an eye disease characterized by damage to the central part of the retina, the macula, and that affects millions of people worldwide. Despite therapeutic advances thanks to the use of anti-vascular endothelial growth factor (VEGF), many resistance mechanisms have been found to accentuate the visual deficit. In the present study, we explored whether a nutraceutical supplementation based on mediterranean diet associating polyphenols from red wine and omega-3 fatty acids was able to counteract laser-induced choroidal neovascularization (CNV) in mice and moleular mechanism involved in neaovasculariation of AMD. We highlight that nutraceutical formulation, Resvega®, composed of DHA/EPA and resveratrol, significantly reduced CNV in mice and a proteomic approach confirmed that Resvega® could counteract the progression of AMD through a pleiotropic effect targeting key regulators of neoangiogenesis in retina cells in vivo. These events were associated with an accumulation of resveratrol metabolites within the retina. A molecular analysis revealed that Resvega®, inhibited VEGF-A secretion in vitro by disrupting the dissociation of the VEGF-R2/Cav-1 complex into rafts and subsequently preventing MAPK activation. Moreover, DNA ChIP analysis reveals that this combination prevents the interaction between AP-1 and vegf-a and vegf-r2 gene promoters. Therefore, a supplementation of omega-3/resveratrol could improve the management or slow the progression of AMD in patients with this condition.

This work was supported by grants from the ANRT N°2016/0003, by a French Government grant managed by the French National Research Agency under the program “Investissements d’Avenir”, reference ANR-11-LABX-0021, the Conseil Régional Bourgogne, Franche-Comte (PARI grant) and the FEDER (European Funding for Regional Economic Development).

DOI:

Publication date: June 14, 2022

Issue: WAC 2022

Type: Article

Authors

Dominique Delmas, Flavie Courtaut, Virginie Aires, Niyazi Acar, Lionel Bretillon, Alessandra Scagliarini, Clarisse Cornebise, Ida Chiara Guerrera, Cerina Chhuon, Jean-Paul Pais de Barros, Céline Olmiere

Presenting author

Dominique Delmas – Inserm Research Center U1231, University of Bourgogne

Inserm Research Center U1231, University of Bourgogne | Inserm Research Center U1231, University of Bourgogne | Eye and Nutrition Research Group, Centre des Sciences du Goût et de l’Alimentation, AgroSup Dijon | Eye and Nutrition Research Group, Centre des Sciences du Goût et de l’Alimentation, AgroSup Dijon | Inserm Research Center U1231, University of Bourgogne | Inserm Research Center U1231, University of Bourgogne | Proteomics Platform Necker, Université de Paris | Proteomics Platform Necker, Université de Paris | Lipidomic Analytical Platform, 21000 Dijon | Laboratoires Thea, 12 Rue Louis-Blériot, 63000 Clermont-Ferrand

Contact the author

Keywords

Resveratrol, fatty acids, mediterranean supplementation, ocular disease

Tags

IVES Conference Series | WAC 2022

Citation

Related articles…

Contribution of viticultural and oenological factors to the aromatic potential of white Colombard wines from the south west of France Gascony vineyard

The aim of this work is to determine the influence of viticultural and oenological factors to the aromatic potential of white wines from Colombard variety in the south west of France Gascony vineyard.

WINE SWIRLING: A FIRST STEP TOWARDS THE UNLOCKING OF THE WINE’STASTER GESTURE

Right after the pouring of wine in a glass, a myriad of volatile organic compounds, including ethanol, overwhelm the glass headspace, thus causing the so-called wine’s bouquet [1]. Otherwise, it is worth noting that during wine tasting, most people automatically swirl their glass to enhance the release of aromas in the glass headspace [1]. About a decade ago, Swiss researchers revealed the complex fluid mechanics underlying wine swirling [2]. However, despite mechanically repeated throughout wine tasting, the consequences of glass swirling on the chemical space found in the headspace of wine glasses are still barely known.

WINE AS AN EMOTIONAL AND AESTHETIC OBJECT: IMPACT OF EXPERTISE

Wine tasting has been shown to provide emotions to tasters (Coste et al. 2018). How will expertise impact this emotional response? Burnham and Skilleås (2012) reported that the cultural, experiential, and aesthetic competencies characterize an expert in wine compared to a novice. Although there is no consensual definition of an aesthetic experience, Burnham and Skilleås (2012) reported that aesthetic appreciation is “disinterested, normative for others and communicable” in comparison to sensory pleasure.

Phenolic extraction during fermentation as affected by ripeness level of Syrah/R99 grapes

L’extraction phénolique au cours de la fermentation à partir de vendanges de différents degrees de maturité du cépage Syrah/R99 a été etudiée. Cette travail fait parti d’un projet focalisé sur la qualité du raisin et des vins obtenus au cours du millésime 2002. Les vignes sont situées à Stellenbosch (Afrique du Sud) sur un sol Glenrose

Adsorption of tetraconazole by organic residues and vineyard organically-amended soils 

Spain is the country with the largest wine-producing area in the EU and its productivity is largely controlled applying fungicides. However, residues of these compounds can move and contaminate surface and groundwater. The objective of this work was to evaluate the capacity of bioadsorbents from different origin to adsorb and immobilize tetraconazole by themselves or when applied as organic soil amendment, and to prevent soil and water contamination by this fungicide. The adsorption of tetraconazole by 3 organic residues: spent mushroom substrate (SMS), green compost (GC) and vine pruning sawdust (VP), as well as by vineyard soils unamended and amended individually with these residues at 1.5% (w/w) was evaluated using the batch equilibrium technique.