Chemokine System Polymorphisms and Risk of Atherosclerosis (CAD)

The purpose of this study is to identify genes associated with certain risk factors for atherosclerosis (hardening of the arteries) and its consequences, such as development of coronary artery disease, heart attack, other blood vessel disease and stroke.

People enrolled in the Framingham Heart Study in Framingham, Massachusetts, are eligible to participate in this study. They will undergo a medical history, including review of their medical records and a family history; evaluation of memory and mood; breathing test and electrocardiogram (EKG); blood and urine tests, including blood sample collection for DNA (genetic) testing; evaluation of gait (walking), balance and hand grip strength; and hearing test. They will also fill out questionnaires on their eating habits and general health.

Any patients who may suffer a stroke during the study will be examined during their hospitalization and at 3, 6, 12, and 24 months after the stroke. This examination includes a neurological evaluation, assessment of ability to perform daily living tasks and, possibly, magnetic resonance imaging (MRI) of the brain, a test that uses a strong magnetic field and radio waves to produce pictures of the brain.