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Published on: February 17, 2023
Ventricular Arrhythmias and Myocardial Infarction: Electrophysiological and Neuroimmune Mechanisms
Meng Zheng1,2,3, Zhen Zhou1,2,3, Ke-Qiong Deng1,2,3
1Department of Cardiology, Zhongnan Hospital of Wuhan University, 169 Donghu Road, Wuhan 430071, China.
Insights
Ventricular arrhythmias after myocardial infarction remain a major cause of death. New research explores the neuroimmune and electrophysiological mechanisms, offering novel therapeutic targets for these dangerous heart rhythm disturbances.
Area of Science:
- Cardiology
- Neuroimmunology
- Electrophysiology
Background:
- Ventricular arrhythmias (VAs) post-myocardial infarction (MI) are a leading cause of cardiovascular mortality despite current treatments.
- Understanding the underlying mechanisms of VAs after MI is crucial for developing improved therapeutic strategies.
Purpose of the Study:
- To review the electrophysiological and neuroimmune mechanisms contributing to VAs following MI.
- To highlight the interplay between the sympathetic nervous system, immune cells, and cardiovascular health.
Main Methods:
- Literature review focusing on neuroimmune pathways and electrophysiological changes in post-MI VAs.
- Analysis of the bidirectional communication between the sympathetic nervous system and immune responses.
- Examination of the influence of lifestyle factors (sleep, exercise) on neuroimmune cardiovascular regulation.
Main Results:
- The sympathetic nervous system (SNS) regulates immune cells via neuroendocrine molecules.
- Immune cells modulate the SNS through cytokine and chemokine release.
- Factors like sleep, health, and exercise impact cardiovascular health via neuroimmune pathways.
Conclusions:
- The neuroimmune axis plays a significant role in the development and persistence of VAs after MI.
- Interdisciplinary approaches combining electrophysiology and neuroimmunology are essential for novel therapeutic discoveries.
- Targeting neuroimmune interactions presents a promising avenue for managing post-MI VAs.
Abstract:
Ventricular arrhythmias (VAs) after myocardial infarction (MI) are still one of the most important causes of cardiovascular death, though patients receive timely vascular recanalization and drug treatment. And it requires further exploring the mechanism and new therapeutics of VAs induced by MI. Here, we review the electrophysiological and neuroimmune mechanisms of VAs induced by MI. Immune cells are regulated by combining with neuroendocrine molecules released by the sympathetic nervous system (SNS), and, in turn, they modulate SNS both at the paraventricular nucleus of the hypothalamus and stellate ganglion by releasing cytokines or chemokines. In addition, 'life essentials' such as sleep, physiological health, and exercise can also influence cardiovascular health through neuroimmune mechanisms. Those factors and mechanisms provide us with new perspectives for understanding the occurrence and maintenance of VAs after MI. Exploring the crosstalk between electrophysiology and neuroimmunology will contribute to finding new therapeutics for VAs after MI.
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