作者: I. B. LUMHOLTZ , J. FABER , C. KIRKEGAARD , K. SIERSBÆK-NIELSEN , T. FRIIS
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摘要: The effect of D,L-propranolol (80 mg daily) on the peripheral monodeiodination rT3, 3',5'-diiodothyronine (3',5'-T2), 3,3'-diiodothyronine (3,3'-T2), and 3'-monoiodothyronine (3'-T1) was studied in seven out-patients with severe pretreatment hypothyroidism. patients were maintained euthyroid a constant L-T4 replacement therapy. A bolus injection technique used; MCR, production rate (PR), conversion determined using noncompartmental kinetic model. During D,L-propranolol, serum rT3 3',5'-T2 increased (P less than 0.02), 3,3'-T2 seemed to decrease. MCRs 3',5'-T2, 0.02) decreased during drug treatment. MCR PR 3'-T1 reduced, albeit not significantly 0.10). reduced whereas PRs unaltered. No changes seen apparent distribution volumes iodothyronines studied. results are compatible assumption that or metabolite thereof, inhibits 5'-deiodination all iodothyronines.