The Hepatoprotective Effects of Vitamin C and Micronized Vitamin C against Paracetamol Induced Hepatotoxicity in Rats: A Comparative Study

Document Type : Original Article

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Department of Biochemistry, Faculty of Veterinary Medicine, Beni-Suef Universit, Beni-Suef, Egypt

Abstract

Micronization of chemical compounds is a new promising field as it reduces the size of the particles thus it increases their penetration power. Many theories prove that micronized particles are more effective even in very low concentration as compared to its normal size. Paracetamol is a commonly used effective analgesic and antipyretic agent for relief of mild and moderate pain. However, deliberate overdose or accidental overdose can cause hepatotoxicity. In the present study, we have evaluated and compared between the hepatoprotective and antioxidant effects of
vitamin C and micronized vitamin C against paracetamol induced hepatotoxicity in rats. Activities of liver enzymatic markers (Alanine amino transferase "ALT", Aspartate amino transferase "AST", Alkaline Phosphatase "ALP") and total protein "TP" concentration were estimated in serum. Lipid peroxidation "MDA" and antioxidant status (reduced glutathione "GSH " concentration, glutathione reductase "GR", catalse and super oxide dismutase "SOD" activities) were measured in tissue  homogenates. Paracetamol administration (600 mg/ Kg B.wt.) significantly increased the liver enzymatic markers and decreased the total protein level. It also increased hepatic lipid peroxidation “MDA” and the activities of both catalase and SOD while it decreased GSH content and glutathione reductase (GR) activity. Treatment of vitamin C and micronized vtamin C restore the measured parameters nearly to their normal levels. Finally, micronized vitamin C has a more potent effect than ordinary vitamin C. 

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