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The effect of aqueous extract of Embelia ribes Burm on serum homocysteine, lipids and oxidative enzymes in methionine induced hyperhomocysteinemia

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Author(s): Bhandari Uma | Ansari M | Islam F | Tripathi C

Journal: Indian Journal of Pharmacology
ISSN 0253-7613

Volume: 40;
Issue: 4;
Start page: 152;
Date: 2008;
Original page

Keywords: Embelia ribes | homocysteine | hyperlipidemia | methionine | oxidative stress

ABSTRACT
Objective: The present study was designed to evaluate the effect of the aqueous extract of Embelia ribes Burm fruits on methionine-induced hyperhomocysteinemia, hyperlipidemia and oxidative stress in albino rats. Materials and Methods: Adult male Wistar albino rats were fed with the aqueous extract of Embelia ribes (100 and 200 mg/kg, p.o.) for 30 days. Hyperhomocysteinemia was induced by methionine treatment (1 g/kg, p.o.) for 30 days and folic acid (100 mg/kg, p.o.) was used as a standard drug. The animals were evaluated for various biochemical parameters in serum and brain homogenates, followed by histopathological studies at the end of the study. Results: Administration of methionine (1 g/kg, p.o.) for 30 days to vehicle control rats produced significant increase (P < 0.01) in homocysteine, lactate dehydrogenase (LDH), total cholesterol, triglycerides, low density lipoprotein (LDL-C), very low density lipoprotein (VLDL-C) levels in serum and lipid peroxides (LPO) levels in brain homogenates, with reduction in high density lipoprotein (HDL-C) levels in serum, and glutathione (GSH) content in brain homogenates, as compared to vehicle control rats. Administration of the aqueous extract of Embelia ribes (100 and 200 mg/kg, p.o.) for 30 days, to hyperhomocysteinemic rats, significantly (P < 0.01) decreased the levels of homocysteine, LDH, total cholesterol, triglycerides, LDL-C and VLDL-C and increased the HDL-C levels in serum. In addition, a significant (P < 0.01) decrease in LPO levels with increase in GSH content was observed in hyperhomocysteinemic rats treated with the aqueous extract of Embelia ribes. The results were comparable to those obtained with folic acid, a standard antihyperhomocysteinemic drug. Conclusion: The present results provide clear evidence that the aqueous extract of Embelia ribes treatment enhances the antioxidant defense against methionine-induced hyperhomocysteinemia, hyperlipidemia and oxidative stress in brain.
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