Abstract Title:

Changes in liver proteins of rats fed standard and high-fat and sucrose diets induced by fish omega-3 PUFAs and their combination with grape polyphenols according to quantitative proteomics.

Abstract Source:

J Nutr Biochem. 2016 Dec 21 ;41:84-97. Epub 2016 Dec 21. PMID: 28064013

Abstract Author(s):

Lucía Méndez, Sergio Ciordia, María Soledad Fernández, Silvia Juárez, Antonio Ramos, Manuel Pazos, José M Gallardo, Josep Lluís Torres, M Rosa Nogués, Isabel Medina

Article Affiliation:

Lucía Méndez


This study considered the physiological modulation of liver proteins due to the supplementation with fish oils under two dietary backgrounds: standard or high in fat and sucrose (HFHS), and their combination with grape polyphenols. By using a quantitative proteomics approach, we showed that the capacity of the supplements for regulating proteins depended on the diet; namely, 10 different proteins changed into standard diets, while 45 changed into the HFHS diets and only scarcely proteins were found altered in common. However, in both contexts, fish oils were the main regulatory force, although the addition of polyphenols was able to modulate some fish oils' effects. Moreover, we demonstrated the ability of fish oils and their combination with grape polyphenols in improving biochemical parameters and reducing lipogenesis and glycolysis enzymes, enhancing fatty acid beta-oxidation and insulin signaling and ameliorating endoplasmic reticulum stress and protein oxidation when they are included in an unhealthy diet.

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