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http://dx.doi.org/10.9799/ksfan.2015.28.4.650

Suppressive Effect of Acorn (Quercus acutissima Carr.) Extracts in 3T3-L1 Preadipocytes  

Kim, Ji-Yeon (The Graduate School of Alternative Medicine, Kyonggi University)
Lee, Jin (Dept. of Alternative Medicine, Kyonggi University)
Lee, Chang-Won (Dept. of Biotechnology, Catholic University)
Kim, Ae-Jung (The Graduate School of Alternative Medicine, Kyonggi University)
Publication Information
The Korean Journal of Food And Nutrition / v.28, no.4, 2015 , pp. 650-657 More about this Journal
Abstract
This study aimed to investigate the suppressive effect of acorn extracts, by evaluating 70% ethanol extract (AE) and hot water extract (AW) using 3T3-L1 preadipocytes. We applied various levels (0, 100, 200, 300 and $500 {\mu}g/mL$) of AE and AW to 3T3-L1 preadipocytes. The cell viability of the 3T3-L1 preadipocytes was not affected by up $300 {\mu}g/mL$ of extracts, but was suppressed by level $500{\mu}g/mL$ of both AE and AW by 20% and 9% respectively. The accumulation of lipid droplets in differentiated 3T3-L1 preadipocytes was dose-dependently suppressed by AE and AW. Especially, at high concentrations ($300{\mu}g/mL$), AE (42%) was more effective than AW (41%). Reactive oxygen species (ROS) was also dose-dependently suppressed by treatment with AE (58%) and AW (52%). With regard to the mRNA related to differentiated 3T3-L1 preadipocytes, $PPAR-{\gamma}$ and aP2 were suppressed by treatment with AE (54 and 40%) and AW (38 and 18%). From our results, acorn extract (AE) has more suppressive effects than AW in differentiated 3T3-L1 preadipocytes. We therefore concluded that acorn has suppressive effects against obesity in differentiated 3T3-L1 cells due to antioxidation.
Keywords
acorn; Quercus acutissima Carr; antiobesity; 3T3-L1 preadipocytes;
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