Effects of fish oil on lipid metabolism and its molecular biological regulators in chronic ethanol-fed rats

Hsiao Yun Wang, Hsiang Chi Peng, Yi Wen Chien, Ya Ling Chen, Nien Shan Lu, Suh Ching Yang

Research output: Contribution to journalArticle

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Abstract

The purpose of this study was to clarify the hepatoprotective mechanisms of fish oil in ethanol-fed rats based on lipid metabolism. Thirty eight-week-old male Wistar rats were divided into six groups: C (control), CF25 (control diet with 25% fish oil substitution), CF57 (control diet with 57% fish oil substitution), E (ethanol-containing diet) group, EF25 (ethanol-containing diet with 25% fish oil substitution), and EF57 (ethanol-containing diet with 57% fish oil substitution) groups. All of the groups were pair-fed an isoenergetic diet based on E group. Rats were sacrificed after eight weeks. When compared with C group, the plasma aspartate transaminase (AST) activity and hepatic steatosis and inflammatory cell infiltration were significantly higher, while plasma adiponectin level and hepatic AMP-activated protein kinase α (AMPKα) protein expression was significantly lower in the E group. However, the hepatic damage, including steatosis and inflammation were ameliorated in the EF25 and EF57 groups. Moreover, mRNA levels of fatty acid-oxidative enzymes, such as medium-chain acyl-coenzyme A dehydrogenase (MCAD) and carnitine palmitoyltransferase I (CPT-1) were significantly elevated in the EF57 group than those in E group. Partial replacement with fish oil might improve the fatty acid oxidation by raising mRNA levels of downstream transcription factors, finally inhibit the ethanol-induced hepatic steatosis in rats.

Original languageEnglish
Article number802
JournalNutrients
Volume10
Issue number7
DOIs
Publication statusPublished - Jul 1 2018

Fingerprint

Fish Oils
fish oils
Lipid Metabolism
lipid metabolism
Ethanol
ethanol
Diet
rats
diet
Liver
fatty liver
Fatty Acids
Acyl-CoA Dehydrogenase
acyl coenzyme A
Carnitine O-Palmitoyltransferase
carnitine palmitoyltransferase
AMP-activated protein kinase
Messenger RNA
liver
AMP-Activated Protein Kinases

Keywords

  • Adiponectin
  • Ethanol-induced hepatic steatosis
  • Fatty acid oxidation
  • Fish oil
  • Wistar rats

ASJC Scopus subject areas

  • Food Science
  • Nutrition and Dietetics

Cite this

Effects of fish oil on lipid metabolism and its molecular biological regulators in chronic ethanol-fed rats. / Wang, Hsiao Yun; Peng, Hsiang Chi; Chien, Yi Wen; Chen, Ya Ling; Lu, Nien Shan; Yang, Suh Ching.

In: Nutrients, Vol. 10, No. 7, 802, 01.07.2018.

Research output: Contribution to journalArticle

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