Enzyme Is Key To Clogged Arteries, Scientists Find

Scientists have made an important discovery in understanding what causes arteries to clog up. They have discovered that an enzyme called matrix metalloproteinase-8 plays a crucial role in raising blood pressure and causing abnormal build-up of cells in the arteries -- both of which increase the risk of heart disease. The scientists say that their research could lead to new drugs for treating high blood pressure and preventing heart disease.