The investigators will randomize 180 PAD patients that undergoing a revascularization operation in two groups: (1) an endovascular procedure or (2) an open bypass procedure. They are also planning to recruit 50 non-PAD healthy control subjects.
The goal is to answer the main hypothesis that miR-210 gene expression is a master regulator of oxidative stress and is associated with mitochondrial dysfunction, oxidative metabolism, walking function and quality of life.