Beta-adrenergic axis and heart disease.
Beta-adrenergic receptors (beta-ARs) belong to a large family of G-protein-coupled receptors (GPCRs) that form the interface between the sympathetic nervous system and the cardiovascular system. The beta-AR signal system is one of the most powerful regulators of cardiac function, mediated by the effects of the sympathetic transmitters epinephrine and norepinephrine. In a number of cardiac diseases, however, the biology of beta-AR signaling pathways is altered dramatically. Here we discuss the role of beta-AR signaling in the normal and abnormal heart and how the use of genetically engineered mouse models has helped in our understanding of the pathophysiology of cardiac disease.
Naga Prasad, SV; Nienaber, J; Rockman, HA
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