Effect of the hyperlipemic diet and chronic antigen-induced arthritis (AIA) on serum content. A, Schematic representation of the experimental model. B, Total cholesterol (Total Chol), high density lipoprotein (HDL) cholesterol and triglycerides levels (mg/dl) in the sera of healthy rabbits, high-fat diet (HFD) rabbits, AIA rabbits and AIA + HFD rabbits. C, Concentration of C reactive protein (µg/ml) in the sera of experimental rabbits. Bars show the mean and SEM (n = 7 to 9 rabbits per group). OVA, Ovalbumin.