Leukotriene B4
metaboliteLeukotriene eicosanoid recruiting leukocytes and amplifying vascular inflammation after MI.
Pathway placement
Cascade stepPlaque inflammation
Confidencehigh
RationalePotent leukotriene amplifying leukocyte recruitment and plaque inflammation post-MI.
Druggability
Not assessed (no mapped human gene target).
Type I vs Type II discrimination
ScoresLow-confidence (proxy)
R — rupture / Type-I57
C — confounder / Type-II80
A — assay feasibility42
E — evidence strength30
T1DI (composite)5
Specificity differential (R−C)-22.9
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, 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(4)
- Arachidonic acid fuels inflammation by unlocking macrophage protein phosphatase 5 after myocardial infarction.European heart journal · 2026 · PMID 40905492 · doi
- Molecular screening in a translational large animal trial identifies a differential inflammatory response for MINOCA.Basic research in cardiology · 2025 · PMID 40512240 · doi
- Metabolomics reveal dynamic changes in eicosanoid profile in patients with ST-elevation myocardial infarction after percutaneous coronary intervention.Clinical and experimental pharmacology & physiology · 2021 · PMID 33141433 · doi
- Omega-3 polyunsaturated fatty acid supplementation improves lipid metabolism and endothelial function by providing a beneficial eicosanoid-pattern in patients with acute myocardial infarction: A randomized, controlled trial.Clinical nutrition (Edinburgh, Scotland) · 2020 · PMID 33041091 · doi