Short-term feeding of conjugated linoleic acid does not induce hepatic steatosis in C57BL/6J mice

Yu Ming Wang, Koji Nagao, Yoko Ujino, Kotaro Sakata, Kouki Higa, Nao Inoue, Teruyoshi Yanagita

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

We investigated the effect of short-term feeding of conjugated linoleic acid (CLA) on adipose tissue weights, liver weight, hepatic lipid metabolism, and serum lipoprotein profiles in C57BL/6J mice. Mice were fed semi-synthetic diets containing either 6% high-linoleic safflower oil (HL-SAF) or 4% HL-SAF+2% CLA for 1 wk. Short-term feeding of CLA showed an anti-obesity effect without inducing hepatomegaly in mice. In addition to the decline of hepatic triglyceride concentration, significant inhibition of Δ9 desaturation of fatty acid in the total liver lipids was found in CLA-fed mice. The CLA diet significantly increased the activities of peroxisomal β-oxidation and decreased the activities of diacylglycerol acyltransferase, a triglyceride synthesis-related enzyme, in the liver. Moreover, serum lipoprotein profiles of CLA-fed mice showed preferable changes in the atherogenic indices. However, serum leptin and adiponectin were drastically decreased by CLA feeding, suggesting that prolonged administration of CLA would induce further decrease of serum adipocytokine levels, which may be a cause of lipodystrophy in mice. These results show that short-term feeding of CLA does not induce adverse effect in C57EL/6J mice.

Original languageEnglish
Pages (from-to)440-444
Number of pages5
JournalJournal of nutritional science and vitaminology
Volume51
Issue number6
DOIs
Publication statusPublished - 2005 Dec
Externally publishedYes

Keywords

  • C57BL/6J mice
  • Conjugated linoleic acid
  • Diacylglycerol acyltransferase
  • Hepatic steatosis

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Nutrition and Dietetics

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