Eicosapentaenoic acid (EPA)
metaboliteEPA is an anti-inflammatory omega-3 polyunsaturated fatty acid that reduces systemic inflammation, triglycerides and overall atherosclerotic cardiovascular risk.
Pathway placement
Cascade stepOff-pathway / systemic markers
Confidencemedium
RationaleOmega-3 fatty acid with anti-inflammatory and triglyceride-lowering effects; systemic risk modifier, not a direct cascade mechanistic marker.
Also acts inVascular inflammation
Druggability
Not assessed (no mapped human gene target).
Type I vs Type II discrimination
ScoresType-II-associated
R — rupture / Type-I—
C — confounder / Type-II50
A — assay feasibility42
E — evidence strength48
T1DI (composite)7
Specificity differential (R−C)-35
Confounder panel (Type-II drivers)
1sepsis / systemic inflammationn/a
2anemia / acute blood lossn/a
3hypovolemia / dehydrationn/a
4tachyarrhythmiamag 2
5hypoxemia / respiratory failuremag 2
6hypertensive emergencymag 1
7high-demand / peri-operative stressmag 1
Coverage: 4/7 confounders with evidence
Tier: deep-scored (abstract-extracted) · 7 supporting references. See the discrimination table for all markers.
Assay & specimen
Class-level default (no specific cleared assay)— generic method inferred from analyte class; confirm against a specific product insert before use.
Specimen
Serum, plasma or urine
Collection tube
Serum separator (gold/red-top, SST) · Lithium heparin (green-top) · Sterile urine container
Method / principle
LC-MS/MS (targeted metabolomics) or enzymatic colorimetric where available
Reagent / substrate
Stable-isotope-labeled internal standard (MS); or enzyme-coupled Trinder reagent
Platform
LC-MS/MS; some automated chemistry
Turnaround · availability
Send-out / research · Specialized / research
Literature evidence(3)
- Residual Cardiovascular Risk at Low LDL: Remnants, Lipoprotein(a), and Inflammation.Clinical chemistry · 2021 · PMID 33257928 · doi
- The eicosapentaenoic acid:arachidonic acid ratio and its clinical utility in cardiovascular disease.Postgraduate medicine · 2019 · PMID 31063407 · doi
- Biologic plausibility, cellular effects, and molecular mechanisms of eicosapentaenoic acid (EPA) in atherosclerosis.Atherosclerosis · 2015 · PMID 26253795 · doi
Clinical trials(1)
- Study of the Effect of Eicosapentaenoic Acid (EPA) on Markers of Atherothrombosis in Patients With Type-2 DiabetesNCT06129526 · PHASE4 · UNKNOWN · EPAVasc, Corn Oil