Radiation facilitates migration of monocytes to inner membranes, induces expression of inflammatory adhesion molecules, enhances adhesive capacity of monocytes, recruits monocyte chemotactic protein-1 into inner membranes, absorbs low-density lipoproteins, and promotes arteriosclerosis (58), which eventually leads to arterial stenosis and lower blood perfusion. This evidence concerns the gene CCL2 and Arterial stenosis.