"High concentrations of magnesium modulate vascular endothelial cell behaviour in vitro", Biochimica et Biophysica Acta (BBA) - Molecular Basis of Disease, 2004

"...Our results demonstrate a direct role of magnesium in maintaining endothelial function. We therefore anticipate that magnesium may have a protective effect against atherosclerosis and could play a role in promoting the growth of collateral vessels in chronic ischemia. Moreover, because it induces the synthesis of nitric oxide, this cation could be a helpful tool in hypertension as well as in preventing thrombosis."
learn more/full paper: http://www.sciencedirect.com/science/article/pii/S0925443904000250

Magnesium supplementation has been reported to prevent cardiovascular diseases through the decrease of plasma lipids and to improve endothelial function in patients with coronary artery disease. In the present work, we evaluated whether high magnesium concentrations can directly affect the function…