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May 31, 2026Biomarker ResearchOpen Access

EV troponin was negligible in necrosis-dominant conditions (MI, kidney disease) but constituted up to 40–60% of total troponin in chronic heart failure or hypertrophic cardiomyopathy.

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Why the study?

Can extracellular vesicle-associated (EV) troponin distinguish active, non-necrotic processes from acute injury across different cardiovascular disease cohorts?

Population

266 participants across acute and chronic heart failure, type 1 and type 2 MI, hypertrophic cardiomyopathy…

Design

Cross-sectional

Authors

MSMichail SpanosPGPriyanka GokulnathASAarush Singh

Discussion

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Overview

EV troponin predominance in chronic HF versus negligible levels in MI may refine hs-troponin interpretation; extends biomarker profiling beyond total assays.

Key Points

  • The study aims to examine the role of extracellular vesicle-associated troponin in differentiating cardiac conditions.
  • Analyzed plasma samples from 266 participants across various cardiovascular conditions.
  • Compared extracellular vesicle (EV) troponin to non-vesicular (NEV) troponin concentrations.
  • Investigated correlations of EV troponin with natriuretic peptides and renal indices.
  • EV troponin constituted up to 40-60% of total troponin in chronic heart failure and hypertrophic cardiomyopathy.
  • EV troponin was negligible in myocardial infarction and kidney disease.
  • Weak correlations were found between EV troponin and natriuretic peptides or renal indices.

Structured PICO

Can extracellular vesicle-associated (EV) troponin distinguish active, non-necrotic processes from acute injury across different cardiovascular disease cohorts?

P
Population
266 participants across acute and chronic heart failure, type 1 and type 2 MI, hypertrophic cardiomyopathy, end-stage kidney disease, healthy individuals, and exercise states
O
Outcome
Levels of extracellular vesicle-associated (EV) versus non-vesicular (NEV) troponinsurrogate

Extracellular vesicle-associated troponin constitutes a significant proportion of circulating troponin in chronic heart failure and hypertrophic cardiomyopathy, offering a potential biomarker to distinguish non-necrotic stress from acute myocardial infarction.

Cite This Study

Spanos et al. (2026) studied this question.

synapsesocial.com/papers/6a1bd2515783ba022b6fdc75https://doi.org/10.1186/s40364-026-00947-7
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1A Lysis- and Sonication-Based Method for the Quantification of Extracellular Vesicle-Bound Cardiac Troponin T Using a High-Sensitivity Immunoassay2026
  2. 2Cardiac Troponin Elevation Beyond Type 1 Myocardial Infarction: A Systematic Review of Prognostic Significance and Cardiovascular Risk Stratification2026
  3. 3Investigation of plasma-derived extracellular vesicles in hypertrophic cardiomyopathy patients2026
  4. 42-023 Troponin elevation post-COVID-192025
  5. 5CO24 | Extracellular vesicles profiles in patients with wild-type transthyretin amyloidosis2025