Ischemia-modified albumin
ALBproteinIschemia-modified albumin (IMA) is an early albumin modification arising from myocardial ischemia that serves as a sensitive early ACS biomarker preceding troponin elevation.
Pathway placement
Cascade stepMyocardial injury (shared endpoint)
Confidencehigh
RationaleEarly post-translational modification marker of myocardial ischemia.
Druggability
DruggableYes
Known drugs / candidates0
Small-molecule tractableYes
Antibody tractableYes
EnsemblENSG00000163631
Type I vs Type II discrimination
ScoresShared / rises in both
R — rupture / Type-I67
C — confounder / Type-II50
A — assay feasibility84
E — evidence strength65
T1DI (composite)32
Specificity differential (R−C)+16.7
Confounder panel (Type-II drivers)
1sepsis / systemic inflammationmag 2
2anemia / acute blood lossmag 1
3hypovolemia / dehydrationmag 2
4tachyarrhythmian/a
5hypoxemia / respiratory failuren/a
6hypertensive emergencyn/a
7high-demand / peri-operative stressmag 1
Coverage: 4/7 confounders with evidence
Tier: deep-scored (abstract-extracted) · 20 supporting references. See the discrimination table for all markers.
Assay & specimen
Validated clinical assay
Specimen
Serum or plasma; urine (microalbumin)
Collection tube
Serum separator (gold/red-top, SST) · Lithium heparin (green-top) · Sterile urine container
Method / principle
Dye-binding (BCG/BCP) or immunoturbidimetric (urine)
Reagent / substrate
Bromocresol green/purple; anti-albumin latex for urine
Platform
Automated analyzer
Turnaround · availability
Routine · Universal
Human genetic evidence
0.018
Open Targets association (STEMI)
Literature evidence(7)
- Association of albumin, fibrinogen, and modified proteins with acute coronary syndrome.PloS one · 2022 · PMID 35881574 · doi
- Association between serum lipoprotein-associated phospholipase A2, ischemic modified albumin and acute coronary syndrome: a cross-sectional study.Heart and vessels · 2019 · PMID 30963302 · doi
- Identification of Malonylation, Succinylation, and Glutarylation in Serum Proteins of Acute Myocardial Infarction Patients.Proteomics. Clinical applications · 2019 · PMID 31532912 · doi
- Novel risk factors related to stable angina.Current pharmaceutical design · 2013 · PMID 23016718
- Novel biomarkers in diagnosing cardiac ischemia in the emergency department: a systematic review.Resuscitation · 2011 · PMID 22200578 · doi
- The role of existing and novel cardiac biomarkers for cardioprotection.Current opinion in investigational drugs (London, England : 2000) · 2007 · PMID 17729182
- [New perspectives in the diagnostic approach to acute coronary syndrome].Recenti progressi in medicina · 2005 · PMID 15932030