Hardening of the arteries, or atherosclerosis, is the primary cause of heart disease. It is caused by calcium accumulation in the blood vessels, which leads to arteries becoming narrow and stiff, obstructing blood flow and leading to heart complications. Although many risk factors for atherosclerosis have been identified, the cause is not known and there is currently no way to reverse it once it sets in. In a new study published 9th April in the open access journal PLOS Biology, researchers have characterized the cells responsible for driving this calcium build-up in vessel walls.
