Postnatal development of rat alpha- and beta-adrenergic receptors: A comparison between tissues
International Journal of Developmental Neuroscience : the Official Journal of the International Society for Developmental Neuroscience
M J Morris, E A Woodcock
The rates of development of rat kidney α- and β-adrenoceptors were compared with those of heart and lung adrenoceptors in the same animals by direct binding studies using [(3)H]WB4101 (α1), [(3)H]yohimbine (α2) and [(125)I]HYP (β). Kidney α1 and β-adrenoceptors had reached adult concentrations 7 days after birth, while the α2-adrenoceptor concentration plateaued at 21 days. Lung β-adrenoceptor concentration was stable initially, then increased rapidly to adult levels by 18 days. In contrast, heart α1-and β-adrenoceptor concentrations were at mature levels at birth. In all tissues studied the increase in noradrenaline concentration was slower than the increases in adrenoceptor concentrations.
Adrenergic receptor trafficking is an active physiological process where adrenergic receptors are relocated from one region of the cell to another or from one type of cell to another. Discover the latest research on adrenergic receptor trafficking here.