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Objective: Norepinephrine (NE)-induced apoptosis in cardiomyocytes is an important cause of heart failure. Previous studies revealed that reactive oxygen species (ROS) are involved in apoptosis. Tumor necrosis factor-α (TNF), a well-known mediator that stimulates apoptosis, is not only produced by macrophages but also by cardiomyocytes. Until now, the role of TNF and its relationship to ROS in NE-induced...
Objectives: Heart failure is associated with increased plasma norepinephrine (NE) and endothelial apoptosis. Recent reports have suggested that endothelial dysfunction is an important target for future therapies of heart failure. However, whether NE can induce endothelial apoptosis and its mechanism remains unknown. Methods: Endothelial cells from neonatal rat heart were treated with various concentrations...
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