Potential anti-dyslipidemia and hepatoprotection of functional food ‎components represented by tetracosanol and mixture of policosanol in Triton ‎X-100 induced dyslipidemic rats ‎

Document Type : Original Article

Authors

1 Department of nutrition and Food Sciences, National Research Centre, Cairo, Egypt

2 Nutrition and Food Sciences Department, National Research Centre, Cairo, Egypt.

Abstract

The elevated plasma triglycerides (TGs), total cholesterol (TC) and low density lipoprotein-cholesterol (LDL-C) with ‎concomitant reduction of high density lipoprotein-cholesterol (HDL-C) are designated as dyslipidemia. The aim of the ‎present research was to study the protective effect of tetracosanol and policosanol mixture towards triton X-100 induced ‎dyslipidemia along with their hepatoprotective effect in rats. The policosanol mixture was prepared from tetracosanol, ‎hexacosanol, octacosanol and heptacosanol in the ratio of 3:1:1:1. Rats were divided into 4 groups; a normal control (NC), ‎dyslipidemic control (DC) and two test groups with dyslipidemia and treated with either tetracosanol or policosanol mixture ‎in the form of emulsions. The determined biochemical parameters were plasma TGs, TC, LDL-C, HDL-C, malondialdehyde ‎‎(MDA) and the activities of alanine transaminase (ALT) and aspartate transaminase (AST). In addition to calculation of ‎TC/HDL-C and LDL-C/HDL-C as the elevation of such ratios are considered risk factors for cardiovascular diseases ‎‎(CVDs). Histopathological examination of liver was also carried out. Results showed significant dyslipidemia and elevated ‎LDL-C/HDL-C, TC/HDL-C, MDA, ALT and AST with liver histopatological changes in the DC group compared to the NC ‎group. Both tetracosanol and policosanol mixture reduced the risk factors for CVDs and improved the dyslipidemia, ‎oxidative stress and liver function. Tetracosanol was superior in reducing TC, ALT and AST and improving liver ‎histopathology while policosanol mixture was more efficient in reducing oxidative stress. ‎

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