Metabolomic Approach in STEMI-Patients Undergoing Left Ventricular Remodeling

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Gabriel Garcia1,2,3, Juan Manuel Chao de la Barca1,2,4, Delphine Mirebeau-Prunier1,2,4

  • 1Institut Mitovasc, University of Angers, University Hospital of Angers, 49000 Angers, France.

International Journal of Molecular Sciences
|January 16, 2019
PubMed

Insights

A metabolomic approach did not identify new biomarkers for left ventricular remodeling (LVR) after ST-segment elevation myocardial infarction (STEMI). However, infarct size and inflammatory markers effectively distinguished patients with and without LVR.

Area of Science:

  • Cardiology
  • Metabolomics
  • Biomarker Discovery

Background:

  • Left ventricular remodeling (LVR) is a frequent and severe complication following ST-segment elevation myocardial infarction (STEMI).
  • Identifying reliable biomarkers for post-STEMI LVR is crucial for risk stratification and therapeutic interventions.

Purpose of the Study:

  • To investigate the potential of a metabolomic approach in discovering novel biomarkers associated with LVR after STEMI.
  • To compare metabolomic profiles between patients with and without LVR post-STEMI.

Main Methods:

  • A cohort of 192 STEMI patients with successful revascularization was analyzed.
  • Patients were categorized into LVR (n=32) and no-LVR (n=32) groups based on cardiac magnetic resonance imaging over 12 months.
  • Blood samples were analyzed using a metabolomic approach, alongside measurements of creatine kinase, inflammatory markers, leukocyte, and neutrophil counts.

Main Results:

  • Patients with LVR exhibited significantly higher peak creatine kinase levels, C-reactive protein, leukocyte, and neutrophil counts compared to the no-LVR group.
  • While sphingomyelin C20:2 and symmetrical dimethylarginine were elevated in the LVR group, they did not reach statistical significance after correction.
  • The metabolomic analysis did not significantly discriminate between patients with and without LVR.

Conclusions:

  • The metabolomic approach, in this study, did not identify novel discriminating biomarkers for post-STEMI LVR.
  • Traditional markers of infarction severity, including infarct size and inflammatory markers, remain significant indicators differentiating LVR development.

Keywords:
cardiac magnetic resonanceleft ventricular remodelingmetabolomicsmyocardial infarction

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