1. Dietary Cocoa Flavanols Enhance Mitochondrial Function in Skeletal Muscle and Modify Whole-Body Metabolism in Healthy Mice
- Author
-
Daussin, Frédéric Nicolas, Cuillerier, Alexane, Touron, Julianne, Bensaid, Samir, Melo, Bruno, Al Rewashdy, Ali, Vasam, Goutham, Menzies, Keir, Harper, Mary-Ellen, Heyman, Elsa, Burelle, Yan, Université d'Artois (UA), Unité de Recherche Pluridisciplinaire Sport, Santé, Société (URePSSS) - ULR 7369 - ULR 4488 (URePSSS), Université d'Artois (UA)-Université du Littoral Côte d'Opale (ULCO)-Université de Lille, University of Ottawa [Ottawa], Unité de Nutrition Humaine (UNH), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Clermont Auvergne (UCA), Universidade Federal de Minas Gerais = Federal University of Minas Gerais [Belo Horizonte, Brazil] (UFMG), University of LilleBQRI-52-2017Region Hauts-de-France18001062, Physiotherapy, Human Physiology and Anatomy, and Human Physiology and Sports Physiotherapy Research Group
- Subjects
Male ,NAD metabolism ,glucose metabolism ,Oxidative Stress/drug effects ,Article ,Energy Metabolism/drug effects ,Mice ,Oxidation-Reduction/drug effects ,Sirtuin 3 ,Glucose/metabolism ,Animals ,TX341-641 ,skeletal muscle ,Muscle, Skeletal ,Flavonoids ,Mice, Knockout ,Flavonoids/chemistry ,Plant Extracts/chemistry ,Cacao ,Nutrition. Foods and food supply ,Plant Extracts ,Sirtuin 3/genetics ,cocoa flavanols ,Mitochondria, Muscle ,Mitochondria, Muscle/drug effects ,Oxidative Stress ,Glucose ,Cacao/chemistry ,Dietary Supplements ,Body Composition ,Muscle, Skeletal/drug effects ,Energy Metabolism ,Oxidation-Reduction ,[SDV.AEN]Life Sciences [q-bio]/Food and Nutrition ,Biomarkers ,mitochondrial mass - Abstract
Mitochondrial dysfunction is widely reported in various diseases and contributes to their pathogenesis. We assessed the effect of cocoa flavanols supplementation on mitochondrial function and whole metabolism, and we explored whether the mitochondrial deacetylase sirtuin-3 (Sirt3) is involved or not. We explored the effects of 15 days of CF supplementation in wild type and Sirt3-/- mice. Whole-body metabolism was assessed by indirect calorimetry, and an oral glucose tolerance test was performed to assess glucose metabolism. Mitochondrial respiratory function was assessed in permeabilised fibres and the pyridine nucleotides content (NAD+ and NADH) were quantified. In the wild type, CF supplementation significantly modified whole-body metabolism by promoting carbohydrate use and improved glucose tolerance. CF supplementation induced a significant increase of mitochondrial mass, while significant qualitative adaptation occurred to maintain H2O2 production and cellular oxidative stress. CF supplementation induced a significant increase in NAD+ and NADH content. All the effects mentioned above were blunted in Sirt3-/- mice. Collectively, CF supplementation boosted the NAD metabolism that stimulates sirtuins metabolism and improved mitochondrial function, which likely contributed to the observed whole-body metabolism adaptation, with a greater ability to use carbohydrates, at least partially through Sirt3.
- Published
- 2021