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Figure 6 (Top) Representative gelatin zymography used for the detection of gelatinolytic activity of the aortic rings. Displayed is the 72-kd band corresponding to pro-matrix metalloproteinase (MMP)-2. No gelatinolytic activity was seen at 92 kd (pro-MMP-9). (Bottom) Quantitative analysis of gelatinolytic activity is displayed as a bar graph. *p < 0.05 versus high-cholesterol (HC) diet group. #p < 0.05 versus normal chow (NC) (ND) diet group. AT = atherosclerosis; PPAR = perioxisomal proliferator-activated receptor.