Methods to model epicardial adipose tissue-mediated atrial fibrillation

Area of Science:

• Cardiology
• Metabolic Diseases
• Molecular Biology

Background:

• Obesity is a significant risk factor for atrial fibrillation (AF).
• Epicardial adipose tissue (EAT), abundant in obesity, is implicated in AF pathogenesis.
• The precise mechanisms linking EAT to AF remain incompletely understood.

Purpose of the Study:

• To review current research on the role of EAT in AF.
• To explore the cellular and molecular interactions between EAT and the myocardium.
• To identify potential therapeutic targets for AF in the context of obesity.

Main Methods:

• Narrative review of existing literature.
• Inclusion of data from animal models, human tissue studies, and in vitro experiments.
• Focus on cellular and molecular mechanisms.

Main Results:

• EAT volume and characteristics are associated with AF prevalence and severity.
• EAT influences myocardial electrophysiology and structure through paracrine and endocrine signaling.
• Inflammatory and metabolic alterations in EAT contribute to AF substrate.

Conclusions:

• EAT plays a direct role in mediating AF in obese individuals.
• Understanding EAT-myocardial crosstalk is crucial for developing targeted therapies.
• Further research into EAT-derived factors may reveal novel treatment strategies for AF.