Semiprotective Effects of Hempseed Oil on Carbon Tetrachloride-induced Hepatotoxicity in Male Rats: An Ultra-short Toxicological Intervention



This study was designed to investigate the protective activity of hempseed oil on carbon tetrachloride (CCl4) hepatotoxicity in male rats at Islamic Azad University, Saveh Branch, Saveh, Iran in 2015. Normal control (NC) group was injected intraperitoneally (i.p.) with distilled water (0.5 ml/kg); CCl4-intoxicated group (TCC) injected CCl4; hempseed oil treated group (HSO) gavaged hempseed oil; TCC-HSO group was injected CCl4 prior to intake of hempseed oil and HSO-TCC group was gavaged hempseed oil prior to being injected with CCl4. In all treated groups, toxicity was induced by i.p. injection of CCl4 (0.5 ml/kg) for two consecutive days and hemp seed, oil was gavaged at 8 ml/kg in respective group once daily for one week. Plasma alanine aminotransferase (ALT) and aspartate transaminase (AST) levels increased in TCC. Protection against toxicity in HSO-TCC and TCC-HSO reduced AST and ALT activities compared to TCC. Plasma alkaline phosphatase activity in TCC-HSO and HSO-TCC increased as compared with other groups. CCl4 decreased plasma high-density lipoprotein cholesterol (HDL-C) in TCC. Hempseed oil decreased total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), very low-density lipoprotein cholesterol, and triacylglycerols in HSO compared to NC. Hempseed oil in TCC-HSO and HSO-TCC restored TC, HDL-C, and LDL-C levels to those of NC. Atherogenic index was lower in HSO in comparison to TCC. Based on histopathology, hempseed oil improved CCl4-induced-cardio- and hepatotoxicity in TCC-HSO and HSO-TCC; however, hempseed oil did not prevent CCl4-induced nephrotoxicity. To sum up, hempseed oil has mild protective effects against CCl4 toxicity in male rats.


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