Cognitive decline in heart failure: Biomolecular mechanisms and benefits of exercise

Abdulbaset Maroofi1, Tatiana Moro2, Jacopo Agrimi2

  • 1Department of Exercise Physiology, Faculty of Physical Education & Sport Sciences, University of Guilan, Rasht, Iran.

Insights

Heart failure (HF) impairs cognitive function due to reduced blood flow and complex heart-brain signaling. Exercise may offer a protective strategy against this cognitive decline in HF patients.

Area of Science:

  • Cardiology
  • Neurology
  • Exercise Physiology

Background:

  • Heart failure (HF) affects systemic organ function, including the brain.
  • Reduced cardiac output in HF leads to cognitive impairment and reduced daily activity capacity.
  • A complex, bidirectional relationship exists between the heart and brain, involving hemodynamics, bioelectric, and endocrine signaling.

Purpose of the Study:

  • To explore known and hypothetical mechanisms by which exercise may prevent cognitive dysfunction in heart failure.
  • To highlight the need for a deeper understanding of cardio-cerebral interactions in HF.
  • To inform more effective prevention and treatment strategies for HF-related cognitive decline.

Main Methods:

  • Review of existing literature on heart failure, cognitive function, and exercise.
  • Analysis of physiological and signaling pathways connecting cardiac and cerebral health.
  • Exploration of potential exercise-based interventions for cardio-cerebral health.

Main Results:

  • Heart failure significantly impacts cognitive capacity through impaired hemodynamics and intricate signaling pathways.
  • Exercise presents a potential avenue for mitigating cognitive deficits associated with various forms of heart failure.
  • Further research is required to fully elucidate the mechanisms underlying exercise's cardioprotective and neuroprotective effects.

Conclusions:

  • Understanding the mechanisms of exercise's benefits is crucial for developing targeted interventions.
  • Enhanced knowledge of heart-brain interactions in HF can lead to improved patient outcomes.
  • Exercise may serve as a vital preventive and therapeutic tool for maintaining cognitive health in individuals with heart failure.

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