A Mix of Dietary Fibres Changes Interorgan Nutrients Exchanges and Muscle-Adipose Energy Handling in Overfed Mini-Pigs

• Published in: Nutrients Vol. 13; no. 12; p. 4202
• Main Authors: Mohamed, Ahmed Ben, Rémond, Didier, Gual-Grau, Andreu, Bernalier-Donnadille, Annick, Capel, Frédéric, Michalski, Marie-Caroline, Laugerette, Fabienne, Cohade, Benoit, Hafnaoui, Noureddine, Béchet, Daniel, Coudy-Gandilhon, Cécile, Gueugneau, Marine, Salles, Jerome, Migné, Carole, Dardevet, Dominique, David, Jérémie, Polakof, Sergio, Savary-Auzeloux, Isabelle
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 23.11.2021; MDPI
• Subjects: Adaptation; Adipose tissue; Adipose Tissue - metabolism; Amino acids; Amino Acids - metabolism; Animals; Bread; Catabolism; Coronary vessels; Crosstalk; Diet; Dietary Fiber - administration & dosage; dietary fibres; Dietary Supplements; Digestive system; Disease Models, Animal; Energy; Energy Metabolism - drug effects; Fatty Acids, Volatile - metabolism; Feces - chemistry; Female; Fermented Foods; Fluxes; Food and Nutrition; gene expression; Glucose - metabolism; Hogs; Incretins - metabolism; inter-organ metabolism; Intestine; Intestines - metabolism; Lactic acid; Lactic Acid - metabolism; Life Sciences; Lipids; Metabolism; Microbiota; Mitochondria; Mitochondrial uncoupling protein 2; muscle metabolism; Muscle, Skeletal - metabolism; Muscles; Nutrients; Nutrition research; overfeeding; Overnutrition - metabolism; Oxidation; Phenotypes; Plasma; SCFA; Swine; Swine, Miniature; Transcription factors; Urea; Urea - metabolism; Veins & arteries; France; United States > US; inter-organ metabolism; muscle metabolism; dietary fibres; overfeeding; SCFA; gene expression; obesity; métabolisme inter-organes; suralimentation; obésité; métabolisme musculaire; l'expression du gène; fibres alimentaires
• ISSN: 2072-6643; 2072-6643
• DOI: 10.3390/nu13124202

This study evaluates the capacity of a bread enriched with fermentable dietary fibres to modulate the metabolism and nutrients handling between tissues, gut and peripheral, in a context of overfeeding. Net fluxes of glucose, lactate, urea, short chain fatty acids (SCFA), and amino acids were recorded in control and overfed female mini-pigs supplemented or not with fibre-enriched bread. SCFA in fecal water and gene expressions, but not protein levels or metabolic fluxes, were measured in muscle, adipose tissue, and intestine. Fibre supplementation increased the potential for fatty acid oxidation and mitochondrial activity in muscle ( , , and , < 0.05) as well as main regulatory transcription factors of metabolic activity such as , and . All these features were associated with a reduced muscle fibre cross sectional area, resembling to controls (i.e., lean phenotype). SCFA may be direct inducers of these cross-talk alterations, as their feces content (+52%, = 0.05) was increased in fibre-supplemented mini-pigs. The SCFA effects could be mediated at the gut level by an increased production of incretins (increased mRNA, < 0.05) and an up-regulation of SCFA receptors (increased mRNA, < 0.01). Hence, consumption of supplemented bread with fermentable fibres can be an appropriate strategy to activate muscle energy catabolism and limit the establishment of an obese phenotype.