Monogenic Testing for Heart Disease
- What It Looks For:
- Rare mutations in a single genethat cause inherited heart conditions.
- Examples of Monogenic Heart Conditions:
- Familial Hypercholesterolemia (FH):
- Caused by mutations in genes like LDLR, APOB, or PCSK9. This leads to very high cholesterollevels from a young age, increasing the risk of early heart disease.
- How It’s Used:
- If someone has a family history of early heart diseaseor sudden cardiac death, monogenic testing can identify specific mutations. A positive test can guide early treatment (like cholesterol-lowering meds in FH) or lifestyle adjustments.
Polygenic Testing for Heart Disease
- What It Looks For:
- Many genetic variants(often hundreds or thousands) that each have a small effect on heart disease risk.
- Example of Polygenic Influence:
- Common conditions like Coronary Artery Disease (CAD)are influenced by a mix of genes affecting cholesterol levels, blood pressure, inflammation, etc.
- A Polygenic Risk Score (PRS)sums up the impact of these genes to estimate your overall risk for heart disease.
- How It’s Used:
- Even if you don’t have a family historyor monogenic mutations, polygenic testing can help predict your risk. It’s useful for guiding lifestyle choices (diet, exercise) and might influence how aggressively doctors manage your cholesterol or blood pressure.



