EXPERIMENTAL EVIDENCES FOR THE PROMISING HERAPEUTIC ROLE OF VITIS VINIFERA SEED EXTRACT AGAINST NONALCOHOLIC STEATOHEPATITIS
Keywords:Nonalcoholic steatohepatitis, Vitis vinifera, Inflammation, Insulin resistine, Rats
Objective: The present study was planned to investigate the possible therapeutic effect of methanolic extract of Vitis vinifera seeds on high fat diet-induced nonalcoholic steatohepatitis (NASH) in forty adult female Wistar rats.
Methods: The animals were divided into four groups, (G1)was served as healthy control group and the other three groups received high fat diet for 32 weeks for induction of NASH were assigned as follow: (G2) in which the animals bearing NASH were left untreated, (G3) in which the animals bearing NASH were treated with Vitis vinifera seed extract in a dose of 0.28g/kg b. wt (GSH) and (G4) in which the animals bearing NASH were treated with Vitis vinifera seed extract in a dose of 0.14g/kg b. wt (GSL).
Results: The results revealed significant increase in serum ALT activity, plasma glucose, insulin levels, serum resist in, NF-ÎºB, TNF-Î±, HGF levels, hepatic TNF-Î± and HGF gene expression levels. While, serum albumin, adiponectin levels and hepatic adiponectin gene expression level were decreased significantly in NASH group. Conversely, treatment of NASH groups with GSH or GSL resulted in significant decrease in serum ALT activity, plasma glucose, insulin levels, serum resist in, NF-ÎºB, TNF-Î±, HGF levels, hepatic TNF-Î± and HGF gene expression levels. However, serum albumin, adiponectin levels and hepatic adiponectin gene expression level were increased significantly as a consequence of treatment with GSH or GSL.
Conclusions: The efficacy of Vitis vinifera extract against NASH might be attributed to its strong hepatoprotective potential and powerful anti-inflammatory activity in addition to its potent role in ameliorating insulin resistance indices.
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