Key result
High-fat diet abolishes transmural conduction gradients in rats, linked to increased cardiomyocyte lipid content.
Why the study?
Cardiac adiposity may influence epicardial conduction and disrupt normal transmural activation gradients, but whether transmural conduction gradients are modified in pericardial adiposity remained to be determined.
Does a high-fat diet modify transmural conduction gradients in a rat model of pericardial adiposity?
Does a high-fat diet modify transmural conduction gradients in a rat model of pericardial adiposity?
High-fat diet-induced pericardial adiposity abolishes the protective transmural conduction gradient via localized cardiomyocyte lipid accumulation, revealing a novel mechanism for ventricular arrhythmia vulnerability.
No takes yet. Share an insight, caveat, or question.
May link pericardial adiposity to arrhythmia vulnerability; hypothesis-generating and requires human validation.
Wells et al. (2023) studied Pericardial adiposity. High-fat diet vs. Control diet was evaluated on Transmural conduction gradients and conduction velocity. A high-fat diet for 15 weeks abolished the transmural conduction gradient in rats, with slowed epicardial conduction strongly correlating with increased cardiomyocyte lipid content.
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