Cited by 51Fatty Acid Research and HealthLiver Disease Diagnosis and TreatmentDiet, Metabolism, and Disease

Reversal of high-fat diet-induced hepatic steatosis by n-3 LCPUFA: Role of PPAR-α and SREBP-1c

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Dossi, Camila G., Tapia, Gladys S., Espinosa, Alejandra, Videla, Luis A., D'Espessailles, Amanda·2014·The Journal of Nutritional Biochemistry

Abstract

Nonalcoholic fatty liver disease is characterized by an abnormal accumulation of triacylglycerides in the liver in absence of significant alcohol consumption. Under these conditions, it has been observed an impaired bioavailability of hepatic n-3 long-chain polyunsaturated fatty acids (LCPUFAs). The aim of this study was to test the reversion of the prosteatotic and proinflammatory effects of high-fat diet (HFD) in the mouse liver by changing to normocaloric diet and n-3 LCPUFA supplementation. Male C57BL/6J mice were given either control diet (CD) or HFD for 12 weeks. Control and HFD groups were divided into subgroups that continue with CD or subjected to CD plus n-3 LCPUFA for 8 additional weeks. After this time, blood and liver samples were taken and metabolic, morphologic, oxidative stress, inflammatory and signaling parameters were analyzed. The dietary change from HFD to a normocaloric diet with n-3 LCPUFA supplementation significantly reduced insulin resistance and liver steatosis when compared to switching HFD to normocaloric diet alone. In addition, HFD-induced increases in adiposity, adipocyte enlargement and liver oxidative stress and inflammatory cytokine expression were suppressed by n-3 LCPUFA to control values. Importantly, n-3 LCPUFA supplementation abolish HFD-induced enhancement in hepatic SREBP-1c/PPAR-α ratios, suggesting a change in the metabolic status of the liver from a lipogenic condition to one favoring fatty acid oxidation and steatosis attenuation. These findings may provide the rational basis for the use of normocaloric diets supplemented with n-3 LCPUFA in patients with liver steatosis.

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Crossref · 10.1016/j.jnutbio.2014.04.011

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Authors
Dossi, C. G., Tapia, G. S., Espinosa, A., Videla, L. A., & D'Espessailles, A.
Affiliations
University of Chile (CL)
Venue
The Journal of Nutritional Biochemistry
Publisher
Elsevier BV
Published
2014-09
Volume
25
Issue
9
Pages
977-984
ISSN
0955-2863 (ISSN-L)
OpenAlex
W1973134318
Cited by
51
References
55
Citations by year
2026: 1 · 2025: 2 · 2024: 1 · 2023: 1 · 2022: 2 · 2021: 2 · 2020: 8 · 2019: 6 · 2018: 10 · 2017: 9 · 2016: 6 · 2015: 3
FWCI
5.59
Type
journal article
Language
en
Open access
Locations
  • The Journal of Nutritional Biochemistry (publishedVersion)
  • PubMed (publishedVersion)
  • Americanae (AECID Library) (submittedVersion, other-oa)
  • LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (submittedVersion, other-oa)
  • Universidad de Chile (submittedVersion, cc-by-nc-nd)
Topics
  • Health Sciences › Nursing › Nutrition and Dietetics › Fatty Acid Research and Health
  • Health Sciences › Medicine › Epidemiology › Liver Disease Diagnosis and Treatment
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diet, Metabolism, and Disease
Keywords
non-alcoholic fatty liver disease, hepatic steatosis, n-3 long-chain polyunsaturated fatty acids, high-fat diet, PPARα, SREBP-1c, insulin resistance, oxidative stress, adiposity, inflammatory cytokines, fatty acid oxidation
MeSH terms
Animals, Base Sequence, Fatty Liver, Male, Mice, Inbred C57BL, Fatty Acids, Omega-3, Polymerase Chain Reaction, DNA Primers, Dietary Supplements, PPAR alpha, Mice, Sterol Regulatory Element Binding Protein 1, Diet, High-Fat

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