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Hepatoprotective Activity of Polyherbal Formulation (Normeta ® ) in Oxidative Stress Induced by Alcohol, Polyunsaturated Fatty Acids and Iron in Rats
Author(s) -
Patere Shilpa N.,
Saraf Madhusudan N.,
Majumdar Anuradha S.
Publication year - 2009
Publication title -
basic and clinical pharmacology and toxicology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.805
H-Index - 90
eISSN - 1742-7843
pISSN - 1742-7835
DOI - 10.1111/j.1742-7843.2009.00418.x
Subject(s) - chemistry , thiobarbituric acid , oxidative stress , polyunsaturated fatty acid , antioxidant , lipid peroxidation , transaminase , superoxide dismutase , biochemistry , medicine , food science , fatty acid , enzyme
In recent years, oxidative stress has been implicated in the pathophysiology of a large number of diseases or disorders which are initiated and/or exacerbated by pro‐oxidants such as various drugs including alcohol and food additives. The present study was carried out to evaluate the effects of oral treatment with polyherbal formulation Normeta ® (2 ml and 4 ml/kg) on hepatic damage induced by alcohol 10–30% (blood alcohol was maintained at levels between 150 and 350 mg/dl), thermally oxidized oil (polyunsaturated fatty acids) (15% of diet) and carbonyl iron (1.5–2% of diet) for 30 days in rats. In vitro studies with 1, 1‐Diphenyl, 2‐Picrylhydrazyl (DPPH), Nitric oxide and Ferric chloride (Fe +3 ions) showed that Normeta ® possesses antioxidant and metal chelating activity. Alcohol, polyunsaturated fatty acids and iron feeding produced an increase in serum levels of iron, serum glutamate pyruvate transaminase and decrease in serum proteins. It was also associated with elevated lipid peroxidation (thiobarbituric acid reactive substances) and disruption of antioxidant defence mechanism in liver, decreased body weight and increased liver to body weight ratio. Oral administration of Normeta ® along with alcohol, polyunsaturated fatty acids and iron decreased the serum iron, serum glutamate pyruvate transaminase levels and increased serum protein levels. The levels of liver thiobarbituric acid reactive substances were decreased and the activities of antioxidant enzymes superoxide dismutase and catalase were increased. Improvement in body weight and liver to body weight ratio was also observed. The effects of Normeta ® on physico‐metabolic parameters were comparable with silymarin. This indicates that Normeta ® has favourable effect in bringing down the severity of hepatotoxicity.