Deficiency of cardiac beta-adrenergic receptor in streptozocin-induced diabetic rats.


The number of beta-adrenergic receptors in cardiac myocytes isolated from rats made diabetic with streptozocin (STZ) for 10 wk was measured by use of a hydrophilic nonselective antagonist [3H]CGP 12177 and was found to decrease to 59% of the number in control rats (P less than .05), without any change in affinity. Similarly, using [125I]iodocyanopindolol as… (More)


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