9p21 (CVD Risk)
The 9p21 locus is the strongest common genetic risk region for coronary artery disease, carried in the DNA you are born with. A preventive practice tests it once because risk variants raise cardiovascular risk independently of cholesterol, helping calibrate how aggressively to pursue prevention.
What It Measures
Strongest known common genetic risk locus for CAD.
Optimal vs. Lab Range
Target range for optimal health and longevity based on research.
Population-based reference range from standard labs.
Why It Matters
Risk alleles increase coronary artery disease independent of lipids.
When Low
—
When Optimal
0 → baseline risk.
When High
2 → elevated CAD risk; consider CAC scan earlier.
How to Optimize
Standard CVD prevention with earlier imaging surveillance.
Key Interventions & Linked Compounds
Moderate (6/10)Key Interventions
Curated from clinical literature. Individual results vary; consult a qualified clinician before changing a protocol.
Ordering Notes
Specimen
Buccal swab or whole blood (EDTA)
Patient prep
No fasting required. Maintain usual diet and medications unless advised.
Recommended cadence
Re-test every 3–6 months when actively optimizing; annually for monitoring.
Reporting unit
genotype
Pre-analytic notes
Standardize draw time of day, hydration, and recent exercise. Note any acute illness, supplements, or hormonal therapies on the requisition.
Recommended Follow-Up Actions
- 1
Confirm the result is reliable
Repeat abnormal values before acting — preferably from the same lab, same time of day, and under consistent prep. Rule out acute illness, recent intense exercise, or medication effects that can shift 9p21 (CVD Risk).
- 2
Compare against optimal, not just lab range
Use the optimal window above as the target. Lab "normal" is built from the general population and often misses early dysfunction.
- 3
Pair with related markers
Order a complementary panel covering metabolic, inflammatory, and hormonal context to interpret this marker properly.
- 4
Discuss interventions with a clinician
Use the interpretation guidance above to frame the conversation. Bring trends, not just one datapoint, to your visit.
- 5
Re-test on a defined cadence
If a change is implemented, re-measure in 8–12 weeks for fast-moving markers, or 3–6 months for slower ones, to confirm response before escalating.
Quick Actions
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