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Título

An extra virgin olive oil rich diet intervention ameliorates the nonalcoholic steatohepatitis induced by a high-fat “Western-type” diet in mice

AutorJurado-Ruíz, Enrique; Varela, Lourdes; Luque, Amparo; Berná, Genoveva; Cahuana, Gladys M. ; Martínez-Force, Enrique ; Gallego-Durán, Rocío; Soria Escoms, Bernat ; Roos, Baukje de; Romero-Gómez, Manuel; Martín, Franz
Palabras claveTriolein
Inflammation
Nonalcoholic fatty liver disease
High-fat diet
Extra virgin olive oil (EVOO)
Fecha de publicación2017
EditorWiley-VCH
CitaciónMolecular Nutrition and Food Research 61(3): 1600549 (2017)
Resumen[Scope]: We evaluated the protective effect of extra virgin olive oil (EVOO) in high-fat diets (HFDs) on the inflammatory response and liver damage in a nonalcoholic fatty liver disease (NAFLD) mouse model. [Methods and results]: C57BL/6J mice were fed a standard diet or a lard-based HFD (HFD-L) for 12 wk to develop NAFLD. HFD-fed mice were then divided into four groups and fed for 24 wk with the following: HFD-L, HFD-EVOO, HFD based on phenolics-rich EVOO, and reversion (standard diet). HFD-L-induced metabolic disorders were alleviated by replacement of lard with EVOO. EVOO diets improved plasma lipid profile and reduced body weight, plasma and epididymal fat INF-γ, IL-6 and leptin levels, and macrophage infiltration. Moreover, NAFLD activity scores were reduced. The liver lipid composition showed an increase in MUFAs, especially oleic acid, and a decrease in saturated fatty acids. Hepatic adiponutrin and Cd36 gene expression was upregulated in the EVOO groups. Liver ingenuity pathway analysis revealed in EVOO groups regulation of proteins involved in lipid metabolism, small molecule biochemistry, gastrointestinal disease, and liver regeneration. [Conclusion]: Dietary EVOO could repair HFD-induced hepatic damage, possibly via an anti-inflammatory effect in adipose tissue and modifications in the liver lipid composition and signaling pathways.
URIhttp://hdl.handle.net/10261/165422
Identificadoresdoi: 10.1002/mnfr.201600549
e-issn: 1613-4133
issn: 1613-4125
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