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Title: Characterization of the Anti-Diabetic and Antioxidant Effects of Rehmannia Glutinosa in Streptozotocin-Induced Diabetic Wistar Rats
Authors: Waisundara, V.Y.
Huang, M.
Hsu, A.
Huang, D. 
Tan, B.K.-H.
Keywords: C-Reactive Protein
Traditional Chinese Medicine
Issue Date: 2008
Citation: Waisundara, V.Y., Huang, M., Hsu, A., Huang, D., Tan, B.K.-H. (2008). Characterization of the Anti-Diabetic and Antioxidant Effects of Rehmannia Glutinosa in Streptozotocin-Induced Diabetic Wistar Rats. American Journal of Chinese Medicine 36 (6) : 1083-1104. ScholarBank@NUS Repository.
Abstract: This study investigated the effects of Rehmannia glutinosa individually as well as in combination with the oral hypoglycemic agent, metformin in streptozotocin (STZ)-induced diabetic Wistar rats. R. glutinosa ethanolic extract was prepared and the constituents were characterized using fractionation by column chromatography, followed by high performance liquid chromatography-mass spectrometry. STZ (65 mg/kg) was injected intraperitoneally to induce diabetes in Wistar rats. The diabetic rats were divided into the following groups (each n = 6) and received the respective treatments for 30 days: (1) metformin (500 mg/kg), (2) R. glutinosa (200 mg/kg), (3) metformin (500 mg/kg) and R. glutinosa (200 mg/kg) and (4) diabetic control (DC). A reduction in plasma glucose levels caused by the herb was not as significant as metformin compared to the diabetic control (p < 0.05). However, R. glutinosa -treated group showed reductions in plasma C-reactive protein (CRP) levels compared to the diabetic controls (p < 0.05) as well as metformin-treated group (p < 0.05). An enhanced reduction in CRP concentration was observed in the group receiving both herb and metformin compared to metformin-treated group (p < 0.05). Reduction in CRP levels suggests an anti-inflammatory activity of the herb. © 2008 World Scientific Publishing Company.
Source Title: American Journal of Chinese Medicine
ISSN: 0192415X
DOI: 10.1142/S0192415X08006594
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