Balloon injury-induced activation of PCNA and p-Akt in common carotid arteries. (A) Representative Western blot for PCNA, Akt and p-Akt in GK and Wistar rats at day 7 after balloon injury and control groups. (B) Bar diagrams depicting the relative protein level of PCNA after normalization to β-actin. (C) Bar diagrams showing the ratio of p-Akt to Akt. Data represent the mean±SD, n=3. * indicates Wistar control versus Wistar day 7, # indicates GK control versus GK day 7, $ indicates Wistar day 7 versus GK day 7. p<0.01.