Anti-diabetic properties of Daphniphyllum macropodum fruit and its active compound
- Authors
- Koo, Hyun Jung; Kwak, Jong Hwan; Kang, Se Chan
- Issue Date
- Aug-2014
- Publisher
- TAYLOR & FRANCIS LTD
- Keywords
- Daphniphyllum macropodum; type 2 diabetes mellitus; adipocyte differentiation; 5,7-dihydroxychromone; peroxisome proliferator-activated receptor gamma
- Citation
- BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY, v.78, no.8, pp.1392 - 1401
- Journal Title
- BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY
- Volume
- 78
- Number
- 8
- Start Page
- 1392
- End Page
- 1401
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/12457
- DOI
- 10.1080/09168451.2014.923289
- ISSN
- 0916-8451
- Abstract
- We evaluated in vitro anti-diabetic activities of 497 native plants of Jeju Island (South Korea) by measuring the induction of adipocyte differentiation. Among the plants, Daphniphyllum macropodum fruit extract (DME) had the highest peroxisome proliferator-activated receptor gamma (PPAR gamma) agonist activity and was therefore selected as a potential source of antidiabetic agents. To elucidate the active components of DME, constituent compounds were purified and their effects on the adipocyte differentiation were studied. Using activity-guided fractionation, four compounds were isolated from DME and their adipogenic effects were evaluated. Among the compounds isolated, 5,7-dihydroxychromone potently induced the differentiation of mouse 3T3-L1 preadipocytes. DME and 5,7-dihydroxychromone increased PPAR gamma and liver X receptor alpha (LXR alpha) mRNA expression levels. To determine whether the adipogenic effects we observed might affect serum glucose levels, we undertook in vivo experiment using streptozotocin-/high-fat diet-induced type 2 diabetes mouse model. DME supplementation reduced serum glucose, total cholesterol, and triacylglycerol levels in diabetes mice. These results suggest that DME may be useful for the prevention and treatment of type 2 diabetes mellitus. Moreover, it was proposed that 5,7-dihydroxychromone isolated from DME is one of the active compounds that may contribute to regulate blood glucose levels.
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