alexa The Hypolipidemic and Hypoglycemic Activities of Fermen
ISSN: 2155-9600

Journal of Nutrition & Food Sciences
Open Access

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Research Article

The Hypolipidemic and Hypoglycemic Activities of Fermented Brown Rice Fibers by Regulating PPARα and ChREBP in the Livers of C57BL/6J Mice

Se-Young Kim1,, Jong-Ho Kim1,2,, Yaoyao Jia1, Ji Hae Lee1, Chunyan Wu1, Kwang-Soon Shin3, Byung Serk Hurh2, Yong Ho Choi2and Sung- Joon Lee1*

1Department of Biotechnology, Graduate School of Life Sciences and Biotechnology, Korea University, Seoul 136-713, Korea

2Sempio Foods Company, 183 Osongsaengmyeong 4ro, Osongeup, Cheongwongun, Chungcheongbukdo 363-954, Korea

3Department of Food Science and Biotechnology, Kyonggi University, Suwon, Gyeonggi-do 443-760, Korea

These authors contribute equally to this study

*Corresponding Author:
Sung-Joon Lee
Department of Biotechnology
Graduate School of Life Sciences and Biotechnology
Korea University, Seoul 136-713, Korea
Tel: +82-2-3290-3029
Fax: +82-2-3290-3653
E-mail: [email protected]

Received date: July 29, 2014; Accepted date: August 25, 2014; Published date: August 29, 2014

Citation: Kim SY, Kim JH, Jia Y, Lee JH, Wu C, et al. (2014) The Hypolipidemic and Hypoglycemic Activities of Fermented Brown Rice Fibers by Regulating PPARa and ChREBP in the Livers of C57BL/6J Mice. J Nutr Food Sci 4: 307 doi: 10.4172/2155-9600.1000307

Copyright: © 2014 Kim SY, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.



The fermentation of brown rice produces black vinegar that has been suggested with beneficial metabolic effects; however, the mechanisms of actions of fermented brown rice have not been studied. We found that fermented brown rice extracts, especially a fraction of fermented brown rice fibers (FBRF), exhibited hypolipidemic and hypoglycemic activities in vivo. The oral administration of FBRF to C57BL/6J mice reduced plasma cholesterol, triglycerides, lowdensity- lipoprotein cholesterol levels, hepatic lipid accumulation and adipocyte size. The activation and induction of hepatic PPARα and subsequent regulation of its target gene expressions in fatty acid uptake and oxidation were the major mechanism for reducing plasma and hepatic triglyceride concentrations. In addition, FBRF improved glucose tolerance and insulin sensitivity. FBRF feeding reduced the expressions of hepatic ChREBP, a key transcription factor in gluconeogenesis, and pro-inflammatory cytokines, thus improved insulin resistance. These results demonstrated that FBR, especially FBRF, shows potent hypolipidemic and anti-diabetic activities through regulating the expression of genes associated with lipid, glucose metabolism and inflammatory cytokines.

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