Restenosis is the arterial wall's healing respone to mechanical injury, which emerges with PCI. According to a large number of studies, restenosis is closely related with thrombosis, elastic recoil, vessel remodeling, neointimal hyperplasia, and inflammation, in witch neointimal hyperplasia is considered as the major reason of restenosis after stenting, and vessel remodeling for PTCA. But mechanism leading to neointimal hyperplasia and vessel remodeling is still remains unknown. Compared with balloon angiop...