Abstract
The protective effects of hesperidin against hypercholesterolemia and fatty liver were examined in male Wistar rats fed a high-cholesterol diet for 12 weeks. Compared with a standard diet, a high-cholesterol diet not only increased body weights, liver weights, and serum concentration of cholesterol, but also induced the fatty degeneration (steatosis) of liver. Hesperidin (0.08%) reduced levels of hepatic steatosis, adipose tissue and liver weights (P < 0.05), serum total cholesterol and retinol binding protein (RBP) 4 concentrations (P < 0.05) in rats fed with high-cholesterol diet, while reduction in low-density lipoprotein cholesterol levels and triglyceride concentrations was not significant. It also attenuated the marked changes in mRNA expression of lipid metabolism-related proteins: RBP, heart fatty acid-binding protein (H-FABP), and cutaneous fatty acid-binding protein (C-FABP), in liver and adipose tissue. According to the results of gas chromatography, serum concentrations of total cholesterol and biomarkers of cholesterol synthesis (lathosterol) and absorption (campesterol, β-sitosterol) were lower, and concentrations of cholesterol in feces were higher in the rats given hesperidin (P < 0.05). Hesperidin may improve hypercholesterolemia and fatty liver by inhibiting both the synthesis and absorption of cholesterol and regulating the expression of mRNA for RBP, C-FABP, and H-FABP.
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