Superoxide dismutase
proteinSOD catalyzes superoxide dismutation; reduced activity or expression reflects failed antioxidant defense in atherosclerotic inflammation and endothelial injury.
Pathway placement
Cascade stepPlaque inflammation
Confidencemedium
RationaleAntioxidant enzyme; altered activity reflects oxidative stress in inflamed plaque and dysfunctional endothelium.
Also acts inEndothelial activation/erosion
Druggability
Not assessed (no mapped human gene target).
Type I vs Type II discrimination
ScoresType-II-associated
R — rupture / Type-I—
C — confounder / Type-II53
A — assay feasibility68
E — evidence strength35
T1DI (composite)7
Specificity differential (R−C)-38.3
Confounder panel (Type-II drivers)
1sepsis / systemic inflammationmag 2
2anemia / acute blood lossn/a
3hypovolemia / dehydrationmag 1
4tachyarrhythmiamag 1
5hypoxemia / respiratory failuremag 2
6hypertensive emergencymag 2
7high-demand / peri-operative stressn/a
Coverage: 5/7 confounders with evidence
Tier: deep-scored (abstract-extracted) · 9 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 or plasma
Collection tube
Serum separator (gold/red-top, SST) · K2/K3-EDTA (lavender-top)
Method / principle
Sandwich immunoassay (ELISA) — research-grade unless a cleared assay exists
Reagent / substrate
Matched anti-target antibody pair (capture + labeled detection)
Platform
ELISA microplate or multiplex (Luminex/MSD)
Turnaround · availability
Send-out / research · Research-grade (no universal clinical assay)
Literature evidence(3)
- Enhancing Endothelial Function with Nutrient-Enriched Table Hen Eggs: A Randomized Study in Patients Recovering from Acute Coronary Syndrome.Clinical interventions in aging · 2024 · PMID 38807636 · doi
- Cigarette smoking induced oxidative stress may impair endothelial function and coronary blood flow in angiographically normal coronary arteries.Circulation journal : official journal of the Japanese Circulation Society · 2006 · PMID 16636496 · doi
- Role of oxygen free radicals in causing endothelial damage in acute myocardial infarction.The Journal of the Association of Physicians of India · 2000 · PMID 11273136