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http://dx.doi.org/10.3746/jkfn.2010.39.5.692

Anti-diabetic Activities of Kocat-D1 in 3T3-L1 Adipocytes and C57BL/KsJ-db/db Mice  

Yang, Ji-Hee (Division of Food Bioscience & Technology, College of Life Sciences and Biotechnology, Korea University)
Won, Hye-Jin (Division of Food Bioscience & Technology, College of Life Sciences and Biotechnology, Korea University)
Park, Ho-Young (Division of Food Bioscience & Technology, College of Life Sciences and Biotechnology, Korea University)
Nam, Mi-Hyun (Division of Food Bioscience & Technology, College of Life Sciences and Biotechnology, Korea University)
Lee, Hyun-Sun (Institute of Health Science, Korea University)
Lee, Joong-Ku (Korea Research Institute of Bioscience and Biotechnology)
Kim, Jong-Tak (KOCAT Inc.)
Lee, Kwang-Won (Division of Food Bioscience & Technology, College of Life Sciences and Biotechnology, Korea University)
Publication Information
Journal of the Korean Society of Food Science and Nutrition / v.39, no.5, 2010 , pp. 692-698 More about this Journal
Abstract
This study investigated anti-diabetic activity of Kocat-D1, which is a currently used traditional medicine for treatment of diabetes in Shandong, China. Insulin sensitizing activity was observed in a cell-based glucose uptake assay using 3T3-L1 adipocytes. The treatment of 0.2 mg/mL of hot water extract of Kocat-D1 with 0.2 nM insulin was associated with a significant increasing in glucose uptake ($165.0{\pm}0.7%$) over the treatment of 0.2 nM insulin. C57BL/KsJ-db/db mice (8 weeks of age) were separated into 3 groups: normal control (control, db/+ mice untreated), diabetic control (DM control, db/db mice untreated), Kocat-D1 (db/db mice treated with Kocat-D1 extract 350 mg/kg/day). After 16 weeks of treatment, body weight and total diet intake of Kocat-D1 group were significantly lower than DM control groups. Blood glucose levels of the Kocat-D1 group ($14.7{\pm}1.4\;mmol/L$) were significantly lower compared to the DM control group ($27.1{\pm}0.2\;mmol/L$). Furthermore, insulin level was significantly increased in the Kocat-D1 group ($0.17{\pm}0.02\;ng/mL$) compared with the DM control group ($0.05{\pm}0.02\;ng/mL$). The glomeruli in kidney was stained using periodic acid-shiff base (PAS) for confirming collagen accumulation. The glomeruli in kidney of Kocat-D1 group had significantly reduced PAS-positive compared with that of DM control.
Keywords
Kocat-D1; anti-diabetes; 3T3-L1; C57BL/KsJ-db/db mice; insulin;
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