The impact of age on cardiac function and extracellular matrix component expression in adverse post-infarction remodeling in mice

Felix Nagel, David Santer, Stefan Stojkovic, Christoph Kaun, Anne-Kristin Schaefer, Martin Krššák, Dietmar Abraham, Péter Bencsik, Péter Ferdinandy, Eva Kenyeres, Tamara Szabados, Johann Wojta, Karola Trescher, Attila Kiss, Bruno K Podesser

Research output: Journal article (peer-reviewed)Journal article

6 Citations (Scopus)


The aim of this study was to describe the potential associations of the expression of matricellular components in adverse post-infarction remodeling of the geriatric heart. In male geriatric (OM, age: 18 months) and young (YM, age: 11 weeks) OF1 mice myocardial infarction (MI) was induced by permanent ligation of the left anterior descending coronary artery. Cardiac function was evaluated by MRI. Plasma and myocardial tissue samples were collected 3d, 7d, and 32d post-MI. Age and MI were associated with impaired cardiac function accompanied by left-ventricular (LV) dilatation. mRNA expression of MMP-2 (7d: p < 0.05), TIMP-1 (7d: p < 0.05), TIMP-2 (7d: p < 0.05), Collagen-1 (3d and 7d: p < 0.05) and Collagen-3 (7d: p < 0.05) in LV non-infarcted myocardium was significantly higher in YM than in OM after MI. MMP-9 activity in plasma was increased in OM after MI (3d: p < 0.01). Tenascin-C protein levels assessed by ELISA were decreased in OM as compared to YM after MI in plasma (3d: p < 0.001, 7d: p < 0.05) and LV non-infarcted myocardium (7d: p < 0.01). Dysregulation in ECM components in non-infarcted LV might be associated and contribute to adverse LV remodeling and impaired cardiac function. Thus, targeting ECM might be a potential therapeutic approach to enhance cardiac function in geriatric patients following MI.

Original languageEnglish
Pages (from-to)193-202
Number of pages10
JournalExperimental Gerontology
Publication statusPublished - May 2019


  • Aging/genetics
  • Animals
  • Disease Models, Animal
  • Extracellular Matrix/metabolism
  • Magnetic Resonance Imaging
  • Male
  • Matrix Metalloproteinase 2/genetics
  • Matrix Metalloproteinase 9/blood
  • Mice
  • Myocardial Infarction/genetics
  • RNA, Messenger/genetics
  • Tenascin/blood
  • Tissue Inhibitor of Metalloproteinase-1/genetics
  • Tissue Inhibitor of Metalloproteinase-2/genetics
  • Ventricular Remodeling/genetics


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