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  • Title: Plant originated glycoprotein has anti-oxidative and anti-inflammatory effects on dextran sulfate sodium-induced colitis in mouse.
    Author: Oh PS, Lim KT.
    Journal: J Biomed Sci; 2006 Jul; 13(4):549-60. PubMed ID: 16586048.
    Abstract:
    We investigated the preventive effect of glycoprotein (27 kDa) isolated from Gardenia jasminoides Ellis (GJE) fruits on colitis in dextran sulfate sodium (DSS, 3%)-induced A/J mice which were administrated orally for 7 days. Anti-inflammatory activity of GJE glycoprotein was assessed by neutrophil infiltration and colonic lipid peroxidation, and determined by myeloperoxidase (MPO) activity and levels of thiobarbituric acid reactive substances (TBARS), respectively in DSS treatment system. The activities of antioxidative enzymes [catalase (CAT), superoxide dismutase (SOD), and glutathione peroxidase (GPx)], activation of inflammation related mediators (iNOS, COX-2, and NF-kappaB), and production of nitric oxide (NO) and reactive oxygen species (ROS) were also measured. The results of this study showed that GJE glycoprotein (80 microg/ml) has a scavenging property to inhibit the intracellular ROS production in RAW 264.7 cells and that GJE glycoprotein (80 mg/kg BW) significantly suppressed the increase in the MPO activity, TBARS level, and NO production, inflammation related mediators [iNOS, COX-2, and NF-kappaB (p50)] activity in DSS-induced mice. Interestingly, the activities of CAT, SOD, and GPx were gradually augmented after a supplement of GJE glycoprotein. Therefore, we suggest that GJE glycoprotein is preventive and therapeutic agent for the ulcerative colitis.
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