Sirolimus differentially blocks the expression of structural proteins in angioplastied vessels. Protein expression for lamin A, vimentin, α-1-antitrypsin, and α-actin in control vessels, PTA+vehicle, and PTA+sirolimus using 2D-electrophoresis with computer assisted densitometry. (A) Magnification of gel spots for all three groups, (B) Densitometric analysis, the bars in the graph depict the mean±SEM for 5 independent experiments. *P<0.05.