Characterization of myometrial desensitization to beta-adrenergic agonists.


Continuous exposure of ovine myometrial strips exposed to isoproterenol (10 microM) resulted in only transient inhibition with contractions returning within 60 min. Rechallenging these strips with isoproterenol failed to induce inhibition, confirming the occurrence of desensitization. In contrast, exposure of myometrial tissue to isoproterenol for only 5… (More)


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