arginine
metaboliteArginine dysregulation impairs endothelial NO synthesis, reducing vasodilation and promoting endothelial dysfunction while delaying myocardial recovery from ischemic injury.
Pathway placement
Cascade stepEndothelial activation & erosion
Confidencemedium
RationaleNOS substrate; arginine dysregulation impairs endothelial NO production and contributes to myocardial ischemic injury recovery.
Also acts inMyocardial injury
Druggability
Not assessed (no mapped human gene target).
Type I vs non-Type I discrimination
ScoresIndeterminate
R — rupture / Type-I—
C — non-Type-I47
A — assay feasibility42
E — evidence strength73
T1DI (composite)11
Specificity differential (R−C)-31.7
Non-Type-I axis panel
Does this marker also move in each non-Type-I setting? mag 0–3; higher means less Type-I-specific. n/a = no evidence retrieved, which is not the same as no change.
2sepsis / systemic inflammationmag 2
2anemia / acute blood lossn/a
2hypovolemia / dehydrationn/a
2tachyarrhythmian/a
2hypoxemia / respiratory failuren/a
2hypertensive emergencymag 2
2high-demand / peri-operative stressn/a
3sudden cardiac deathmag 1
4aPCI-related periproceduralmag 0
4bstent thrombosisn/a
4cin-stent restenosisn/a
5CABG-relatedmag 2
Coverage: 5/12 axes with evidence
Tier: deep-scored (abstract-extracted) · 17 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(5)
- Metabolomic profiles of body shapes and their associations with the risks of incident cardiovascular diseases in Chinese adults.Nutrition, metabolism, and cardiovascular diseases : NMCD · 2025 · PMID 40216564 · doi
- Relationship between amino acid metabolism and inflammation in coronary heart disease (Review).International journal of molecular medicine · 2025 · PMID 40476584 · doi
- Targeted arginine metabolomics combined with metagenomics revealed the potential mechanism of Pueraria lobata extract in treating myocardial infarction.Journal of chromatography. A · 2024 · PMID 38387153 · doi
- Pilot study of myocardial ischemia-induced metabolomic changes in emergency department patients undergoing stress testing.PloS one · 2019 · PMID 30707740 · doi
- Improvement of myocardial infarction risk prediction via inflammation-associated metabolite biomarkers.Heart (British Cardiac Society) · 2017 · PMID 28255100 · doi