BRG1 expression is positively correlated to the rate of apoptotic cells in aortic SMCs of TAD specimens. (A) Representative images of TUNEL staining in aortic media of TAD and normal tissues. The percentage of TUNEL positive cells was significantly higher in TAD than in normal tissues. Bar =50 μm. (B) Dot plots represent log10percentage of apoptotic cells against log10BRG1 protein expression level. The lines represent approximated curves. The correlation coefficient (r) and the P value indicate the statistical significance of the positive correlation between the x and y variables.