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Morphometric analysis. A) Intima/media area ratios in all groups at 21 d. Data are presented as means ± sem; n = 7. B) Representative cross-sections at 21 d of denuded CCA in the saline and PEI+TSP-2 siRNA groups. Sections were stained with Verhoef-van Giesson. Intima was defined by the area between lumen and inner elastic lamina, whereas the area between the inner and outer elastic lamina represents the media. Original magnification, ×40. Scale bars, 200 μm. *P < 0.05.
