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  • Title: Hypolipidemic effect and antioxidant activity of glycoprotein isolated from Ulmus davidiana Nakai in Triton WR-1339-treated mouse.
    Author: Ko JH, Lee SJ, Lim KT.
    Journal: Cell Biochem Funct; 2007; 25(5):495-500. PubMed ID: 16927415.
    Abstract:
    The glycoprotein isolated from Ulmus davidiana Nakai (UDN) (UDN glycoprotein) has a molecular weight of 116 kDa and consists of 78.65% carbohydrate content and 21.35% protein content. In the present study, we investigated the hypolipidemic effect of UDN glycoprotein on Triton WR-1339-induced mice. With pretreatment with UDN glycoprotein, the triacylglycerol (TAG), total cholesterol and low density lipoprotein-cholesterol (LDL-C) concentrations were significantly reduced, whereas high density lipoprotein-cholesterol (HDL-C) concentration was increased in the plasma of Triton WR-1339-induced mice. With respect to antioxidative activity, UDN glycoprotein significantly decreased the level of thiobarbituric acid reactive substances (TBARS) and improved activities of catalase and glutathione peroxidase (GPx), without an apparent change of superoxide dismutase (SOD) activity. Also UDN glycoprotein significantly increased nitric oxide (NO) production in Triton WR-1339-induced mice. These results indicate that UDN glycoprotein has a hypolipidemic effect, possesses antioxidant activity and has an ability to stimulate NO production. Thus, we speculate that UDN glycoprotein is an example of natural compound that lowers plasma lipid level together with having an antioxidant function in Triton WR-1339-induced mice.
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