Clinical physiology of adrenergic receptor regulation

Lefkowitz, R.J.

American Journal of Physiology 243(1): E43-E47

1982


ISSN/ISBN: 0002-9513
PMID: 6124130
Document Number: 187491
Radioligand binding studies now permit the direct investigation of the .alpha.- and .beta.-adrenergic receptors. The concentration of the receptors in cell membranes is modulated by a wide variety of physiological and pathophysiological variables and may be either increased or decreased in different conditions. Ligand binding techniques have also shed light on the ways in which the adrenergic receptors are coupled to other components of the hormone-sensitive adenylate cyclase system. This coupling is also a highly regulated step, control of which importantly influences catecholamine sensitivity of tissues.

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