Postmyocardial infarct remodeling and heart failure: potential contributions from pro- and antiaging factors

Area of Science:

• Cardiology
• Gerontology
• Regenerative Medicine

Background:

• Myocardial infarction (MI) and subsequent adverse cardiac remodeling in older individuals are associated with poor outcomes.
• Normal aging processes can exacerbate post-MI cardiac dysfunction and remodeling, necessitating a deeper understanding of age-related contributions.

Purpose of the Study:

• To review how normal aging processes influence post-myocardial infarction (MI) events and cardiac remodeling.
• To explore the interplay between aging factors and post-MI remodeling, including stem cell repair efficacy in aged populations.

Main Methods:

• Literature review and perspective synthesis on aging processes and their impact on cardiovascular function.
• Analysis of factors influencing aging, such as immunosenescence, stem cell aging, telomere shortening, oxidative stress, and hormonal changes (klotho, melatonin).
• Examination of the potential of genomics and proteomics in developing novel therapies for post-MI remodeling and heart failure in the elderly.

Main Results:

• Normal aging processes, including cellular senescence and altered stem cell function, can negatively affect cardiac repair after MI.
• Factors like oxidative damage, telomere shortening, and changes in anti-aging hormones (klotho, melatonin) play a role in accelerated aging and impaired cardiac recovery.
• The aging of stem cells presents a challenge for stem cell-based therapies aimed at mitigating post-MI remodeling.

Conclusions:

• Age-related changes significantly influence the pathophysiology of post-myocardial infarction remodeling and heart failure.
• Further research into the aging of stem cells and the integration of multi-omics approaches (genomics, proteomics) is essential for developing effective therapeutic strategies for aged individuals post-MI.