Effects of EEP on serum lipid in ApoE−/−mice fed a high-fat diet. Serum lipid concentrations after a 14-week supplementation period with EEP (160 mg/kg/d) in ApoE−/− mice on a high-fat diet. A, total cholesterol (mmol/L); B, triglycerides (mmol/L); C, non-HDL-C (mmol/L). Data are presented as means ± SD (n=8 per group). *P<0.05 versus model group. EEP, ethanolic extract of propolis; HDL-C, high-density lipoprotein cholesterol.