L-arachidoyl carnitine
metaboliteL-arachidoyl carnitine accumulates in myocardial necrosis, serving as an early ischemia and cardiomyocyte damage marker.
Pathway placement
Cascade stepMyocardial injury (shared endpoint)
Confidencemedium
RationaleEarly AMI diagnostic biomarker reflecting cardiomyocyte lipid injury.
Druggability
Not assessed (no mapped human gene target).
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(1)
- Early diagnostic biomarkers for acute myocardial infarction unveiled by metabolomics, Mendelian randomization, and machine learning.Molecular biomedicine · 2026 · PMID 41526548 · doi