Back to Search Start Over

Effect of Supplementation with Omega-3 Polyunsaturated Fatty Acids on Metabolic Modulators in Skeletal Muscle of Rats with an Obesogenic High-Fat Diet

Authors :
Mara Patricia Chávez-Ortega
Julio Cesar Almanza-Pérez
Fausto Sánchez-Muñoz
Enrique Hong
Elihu Velázquez-Reyes
Rodrigo Romero-Nava
Santiago Villafaña-Rauda
Alfredo Pérez-Ontiveros
Gerardo Blancas-Flores
Fengyang Huang
Source :
Pharmaceuticals, Vol 17, Iss 2, p 222 (2024)
Publication Year :
2024
Publisher :
MDPI AG, 2024.

Abstract

Previous studies provided evidence of the benefits of omega-3 polyunsaturated fatty acids (ω-3 PUFA) on the cardiovascular system and inflammation. However, its possible effect on skeletal muscle is unknown. This study aimed to evaluate whether ω-3 PUFA reverses the dysregulation of metabolic modulators in the skeletal muscle of rats on a high-fat obesogenic diet. For this purpose, an animal model was developed using male Wistar rats with a high-fat diet (HFD) and subsequently supplemented with ω-3 PUFA. Insulin resistance was assessed, and gene and protein expression of metabolism modulators in skeletal muscle was also calculated using PCR-RT and Western blot. Our results confirmed that in HFD rats, zoometric parameters and insulin resistance were increased compared to SD rats. Furthermore, we demonstrate reduced gene and protein expression of peroxisome proliferator-activated receptors (PPARs) and insulin signaling molecules. After ω-3 PUFA supplementation, we observed that glucose (24.34%), triglycerides (35.78%), and HOMA-IR (40.10%) were reduced, and QUICKI (12.16%) increased compared to HFD rats. Furthermore, in skeletal muscle, we detected increased gene and protein expression of PPAR-α, PPAR-γ, insulin receptor (INSR), insulin receptor substrate 1 (ISR-1), phosphatidylinositol-3-kinase (PI3K), and glucose transporter 4 (GLUT-4). These findings suggest that ω-3 PUFAs decrease insulin resistance of obese skeletal muscle.

Details

Language :
English
ISSN :
14248247
Volume :
17
Issue :
2
Database :
Directory of Open Access Journals
Journal :
Pharmaceuticals
Publication Type :
Academic Journal
Accession number :
edsdoj.86d59f4a24184ec284eccee21f3408f4
Document Type :
article
Full Text :
https://doi.org/10.3390/ph17020222