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KMID : 0380620130450050628
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Korean Journal of Food Science and Technology
2013 Volume.45 No. 5 p.628 ~ p.635
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Effects of Extracts of Unripe Black Raspberry and Red Ginseng on Cholesterol Synthesis
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Lee Su-Jung
Lee Min-Jung
Ko Young-Jong
Choi Hye-Ran
Jeong Jong-Tae
Choi Kyung-Min
Cha Jeong-Dan
Hwang Seung-Mi
Jung Hoo-Kil
Park Jong-Hyuk
Lee Tae-Bum
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Abstract
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We investigated the effects of water extracts of unripe black raspberry (UBR) and red ginseng (RG) on cholesterol synthesis, 3-hydroxy-3-methylglutaryl (HMG)-CoA reductase activity, and expression of low-density lipoprotein (LDL) or high-density lipoprotein (HDL)-related genes in HepG2 and Caco-2 (human hepatoma and intestinal cell lines, respectively). Our results showed that cholesterol synthesis and HMG-CoA reductase activity in HepG2 cells were inhibited by UBR and RG. Further, co-treatment with UBR and RG had a greater effect than did treatment with either UBR or RG. In Caco-2 cells, treatment with UBR and RG increased the expression of LDL-regulated genes, such as LDL receptor and SREBP-2, and also upregulated the level of HDL-associated ABCA1. Moreover, co-treatment with UBR and RG appeared to be more effective than treatment with either UBR or RG. Taken together, our results indicate that UBR and RG regulate the level of HDL-associated ABCA1 via signaling pathway, thereby preventing cholesterol synthesis.
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KEYWORD
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black raspberry, red ginseng, 3-hydroxy-3-methylglutaryl-CoA reductase, low-density lipoprotein, high-density lipoprotein
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