PDGFA and atrial fibrillation: In addition, we also showed that ED‐A fibronectin (ED‐A FN), platelet‐derived growth factor (PDGF)‐α and smooth muscle myosin heavy chain (SMemb) expression were obviously enhanced in AF‐control and AF‐AdNull groups; this change was attenuated by c‐Ski overexpression (Figure S1A‐C).