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Nutrients 2015, 7(1), 277-292; doi:10.3390/nu7010277

Effects of Black Adzuki Bean (Vigna angularis) Extract on Proliferation and Differentiation of 3T3-L1 Preadipocytes into Mature Adipocytes

1
Department of Food Science and Human Nutrition, Chonbuk National University, 664-14 Duckjin-dong, Jeonju, Jeonbuk 561-756, Korea
2
Department of Functional Crop, National Institute of Crop Science, Rural Development Administration, Miryang, Gyeongnam 627-803, Korea
*
Author to whom correspondence should be addressed.
Received: 13 August 2014 / Accepted: 17 December 2014 / Published: 6 January 2015
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Abstract

The aim of this work was to investigate the effects of black adzuki bean (BAB) extract on adipocytes, and to elucidate the cellular mechanisms. In order to examine the proliferation of preadipocytes and differentiating adipocytes, cell viability and DNA content were measured over a period of time. Lipid accumulation during cell differentiation and the molecular mechanisms underlying the effects of BAB on the transcriptional factors involved, with their anti-adipogenic effects, were also identified. We observed that BAB exhibits anti-adipogenic effects through the inhibition of proliferation, thereby lowering mRNA expression of C/EBPβ and suppressing adipogenesis during the early stage of differentiation. This, in turn, resulted in a reduction of TG accumulation in a dose- and time-dependent manner. Treating the cells with BAB not only suppressed the adipogenesis-associated key transcription factors PPARγ and C/EBPα but also significantly decreased the mRNA expression of GLUT4, FABP4, LPL and adiponectin. The expression of lipolytic genes like ATGL and HSL were higher in the treatment group than in the control. Overall, the black adzuki bean extract demonstrated an anti-adipogenic property, which makes it a potential dietary supplement for attenuation of obesity. View Full-Text
Keywords: adzuki bean; Vigna angularis; 3T3-L1; obesity; adipocyte; black bean adzuki bean; Vigna angularis; 3T3-L1; obesity; adipocyte; black bean
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Kim, M.; Park, J.-E.; Song, S.-B.; Cha, Y.-S. Effects of Black Adzuki Bean (Vigna angularis) Extract on Proliferation and Differentiation of 3T3-L1 Preadipocytes into Mature Adipocytes. Nutrients 2015, 7, 277-292.

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