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Histological analysis of PAK1 phosphorylation in arterial cross-sections obtained after balloon injury. Arterial sections obtained on day 14 after injury with infection of adenovirus encoding GFP or dnPAK1 were stained with a phospho-selective antibody, which detects PAK1-pThr423 phosphorylation, or with control IgG (x400 magnification). Representative sections (each from 3 to 5 sections, x400 magnification) are shown.
