Acute regional changes in myocardial strain may predict ventricular remodelling after myocardial infarction in a large animal model

D. S. Mansell, V. D. Bruno, E. Sammut, A. Chiribiri, T. Johnson, I. Khaliulin, D. Baz Lopez, H. S. Gill, K. H. Fraser, M. Murphy, T. Krieg, M. S. Suleiman, S. George, R. Ascione*, A. N. Cookson

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


To identify predictors of left ventricular remodelling (LVR) post-myocardial infarction (MI) and related molecular signatures, a porcine model of closed-chest balloon MI was used along with serial cardiac magnetic resonance imaging (CMRI) up to 5-6 weeks post-MI. Changes in myocardial strain and strain rates were derived from CMRI data. Tissue proteomics was compared between infarcted and non-infarcted territories. Peak values of left ventricular (LV) apical circumferential strain (ACS) changed over time together with peak global circumferential strain (GCS) while peak GLS epicardial strains or strain rates did not change over time. Early LVR post-MI enhanced abundance of 39 proteins in infarcted LV territories, 21 of which correlated with LV equatorial circumferential strain rate. The strongest associations were observed for D-3-phosphoglycerate dehydrogenase (D-3PGDH), cysteine and glycine-rich protein-2, and secreted frizzled-related protein 1 (sFRP1). This study shows that early changes in regional peak ACS persist at 5-6 weeks post-MI, when early LVR is observed along with increased tissue levels of D-3PGDH and sFRP1. More studies are needed to ascertain if the observed increase in tissue levels of D-3PGDH and sFRP1 might be casually involved in the pathogenesis of adverse LV remodelling.

Original languageEnglish
Article number18322
Pages (from-to)18322
JournalScientific Reports
Issue number1
Publication statusPublished - 15 Sept 2021


  • Animals
  • Biomarkers
  • Computational Biology/methods
  • Data Analysis
  • Data Interpretation, Statistical
  • Disease Models, Animal
  • Disease Susceptibility
  • Female
  • Image Processing, Computer-Assisted
  • Magnetic Resonance Imaging/methods
  • Myocardial Infarction/diagnostic imaging
  • Myocardium/metabolism
  • Proteome
  • Proteomics/methods
  • Reproducibility of Results
  • Swine
  • Translational Research, Biomedical
  • Ventricular Function, Left
  • Ventricular Remodeling


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