(From Duke Health). Researchers have connected age-related damage and clotting of arteries (atherosclerosis) with the decline of a particular type of stem cell in the body. This raises the strong possibility of a regenerative therapy similar to that trialed successfully for heart damage in recent months. The patient's own stem cells could be extracted, cultured and returned to the body in greater numbers to help repair damaged tissue. If, that is, the FDA doesn't step in to block this therapy as well.