Docosahexaenoic acid
lipidDocosahexaenoic acid, an omega-3 polyunsaturated fatty acid, accumulates differentially in stable versus rupture-prone atherosclerotic plaques and correlates with endothelial erosion.
Pathway placement
Cascade stepLipid retention & oxidation
Confidencemedium
RationaleOmega-3 PUFA with plaque-stabilizing properties; differentiates erosion from rupture phenotypes.
Also acts inEndothelial activation/erosion
Druggability
Not assessed (no mapped human gene target).
Type I vs Type II discrimination
ScoresLow-confidence (proxy)
R — rupture / Type-I68
C — confounder / Type-II86
A — assay feasibility40
E — evidence strength33
T1DI (composite)5
Specificity differential (R−C)-18.7
Confounder panel (Type-II drivers)
No confounder evidence retrieved.
Tier: light (literature co-occurrence proxy — lower confidence). 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 or plasma (EDTA to limit oxidation)
Collection tube
K2/K3-EDTA (lavender-top) · Serum separator (gold/red-top, SST)
Method / principle
LC-MS/MS lipidomics (targeted or shotgun)
Reagent / substrate
Deuterated lipid-class internal standards; MS/MS transitions
Platform
LC-MS/MS
Turnaround · availability
Research · Research-only
Literature evidence(3)
- Lipidomic Expression Analysis in Carotid Atherosclerotic Disease: A Systematic Review.Annals of vascular surgery · 2025 · PMID 39855383 · doi
- Combining metabolomics and OCT to reveal plasma metabolic profiling and biomarkers of plaque erosion and plaque rupture in STEMI patients.International journal of cardiology · 2023 · PMID 37517782 · doi
- Lipids, Lipoproteins, and Metabolites and Risk of Myocardial Infarction and Stroke.Journal of the American College of Cardiology · 2018 · PMID 29420958 · doi