A mixture of four dietary fibres ameliorates adiposity and improves metabolic profile and intestinal health in cafeteria-fed obese rats: an integrative multi-omics approach
Journal article, 2023
The aim of this study was to assess the effects of a mixture of four dietary fibers on obese rats. Four groups of male Wistar rats were fed with either standard chow (STD) or cafeteria diet (CAF) and were orally supplemented with either fibre mixture (2 g kg−1 of body weight) (STD+F or CAF+F groups) or vehicle (STD+VH or CAF+VH groups). We studied a wide number of biometric, biochemical, transcriptomic, metagenomic and metabolomic variables and applied an integrative multivariate approach based on multiple factor analysis and Pearson's correlation analysis. A significant reduction in body weight, adiposity, HbA1c and HDL-cholesterol serum levels, and colon MPO activity was observed, whereas cecal weight and small intestine length:weight ratio were significantly increased in F-treated groups compared to control animals. CAF+F rats displayed a significant enhancement in energy expenditure, fat oxidation and fresh stool weight, and a significant reduction in adiponectin and LPS serum levels, compared to control group. Animals in STD+F group showed reduced serum LDL-cholesterol levels and a significant reduction in total cholesterol levels in the liver compared to STF+VH group. The intervention effect was reflected at the metabolomic (i.e., production of short-chain fatty acids, phenolic acids, and amino acids), metagenomic (i.e., modulation of Ruminococcus and Lactobacillus genus) and transcriptomic (i.e., expression of tight junctions and proteolysis) levels. Altogether, our integrative multi-omics approach highlights the potential of supplementation with a mixture of fibers to ameliorate the impairments triggered by obesity in terms of adiposity, metabolic profile, and intestinal health.
Author
Núria Estanyol-Torres
University of Barcelona
Institute of Health Carlos III
Cristina Domenech-Coca
The Technology Centre of Catalonia (Eurecat)
Raúl González-Domínguez
Institute of Health Carlos III
University of Barcelona
Antonio Miñarro
Institute of Health Carlos III
University of Barcelona
Ferran Reverter
University of Barcelona
Institute of Health Carlos III
Jose Antonio Moreno-Muñoz
Laboratorios Ordesa
Jesús Jiménez
Laboratorios Ordesa
Manel Martín-Palomas
Laboratorios Ordesa
Pol Castellano-Escuder
Institute of Health Carlos III
University of Barcelona
Hamza Mostafa
Institute of Health Carlos III
University of Barcelona
Santi García-Vallvé
Rovira i Virgili University
Nerea Abasolo
The Technology Centre of Catalonia (Eurecat)
Miguel A. Rodríguez
The Technology Centre of Catalonia (Eurecat)
Helena Torrell
The Technology Centre of Catalonia (Eurecat)
Josep M del Bas
The Technology Centre of Catalonia (Eurecat)
Alex Sanchez-Pla
University of Barcelona
Institute of Health Carlos III
Antoni Caimari
The Technology Centre of Catalonia (Eurecat)
Anna Mas-Capdevila
The Technology Centre of Catalonia (Eurecat)
Cristina Andres-Lacueva
University of Barcelona
Institute of Health Carlos III
Anna Crescenti
The Technology Centre of Catalonia (Eurecat)
Journal of Nutritional Biochemistry
0955-2863 (ISSN) 18734847 (eISSN)
Vol. 111 January 2023 109184Subject Categories (SSIF 2025)
Biological Sciences
Other Natural Sciences
Areas of Advance
Life Science Engineering (2010-2018)
DOI
10.1016/j.jnutbio.2022.109184