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Coronary artery disease (CAD) is a narrowing of the small blood vessels that supply blood and oxygen to the heart. CAD is the most common form of heart disease in the Western world and is one of the leading causes of death in the United States. In addition to lifestyle and environmental factors which are major aetiologic determinants, there is considerable familial clustering of the disease indicating a genetic component in its causation. Although the total genetic contribution to CAD risk can be quantified, the determination of the size and number of contributing effects is impossible without identifying all CAD susceptibility genes. However, identifying clinically useful genetic markers for a complex disease like CAD has been challenging. Epidemiological evidence points to an approximate 50% genetic susceptibility to CAD. Many different genetic associations with CAD have been identified through family and population-based analysed, and genetic risk markers may be important for better defining individuals at risk for and cardiovascular events. In future advances in genomic research provide the valuable tools for understanding the genetic predisposition to coronary artery disease.
About the author
Both the authors are Assistant Professor at Chettinad Academy of Research and Education Chennai. The authors are potentially involved in research areas are Molecular Cytogenetics and System Biology.
