Why the study?
The pathophysiological roles of the cardiac dopamine system remain unknown.
Does cardiomyocyte-specific deletion of dopamine D1 receptor prevent heart failure-associated ventricular arrhythmia?
Population
Heart failure model mice and heart failure patients with sustained ventricular tachycardia
Comparison
Cardiomyocyte-specific deletion vs overexpression of D1R
Design
Single-cell resolution preclinical translational study
Authors
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D1R targeting merits preclinical exploration as anti-arrhythmic strategy in HF; leaves open clinical translation pending human studies.
Does cardiomyocyte-specific deletion of dopamine D1 receptor prevent heart failure-associated ventricular arrhythmia?
Cardiac dopamine D1 receptor plays a pathophysiological role in triggering ventricular arrhythmias in heart failure, presenting a potential novel therapeutic target.
Yamaguchi et al. (2020) studied this question.
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