Collagen External Scaffolds Mitigate Intimal Hyperplasia and Improve Remodeling of Vein Grafts in a Rabbit Arteriovenous Graft Model

Figure 5

Immunostaining revealed PCNA (a–c) and ClvCasp-3 (d–f) in no-graft veins and a sizable increase of the staining (brown, arrow) in graft veins ((a–c) and (d–f) represent no-graft group, graft group, and collagen external scaffold group, respectively).

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