SUR LES 3:3′:5′-TRIIODOTHYRONINE (T′3) ET 3:3′-DIIODOTHYRONINE (T′2) CONSIDEREES COMME CONSTITUANTS DE L'HORMONE THYROIDIENNE CIRCULANTE
- 1 September 1959
- journal article
- Published by Oxford University Press (OUP) in Acta Endocrinologica
- Vol. XXXII (I) , 142-150
- https://doi.org/10.1530/acta.0.xxxii0142
Abstract
Using radiochromatography, 3:3′-diiodothyronine (T′2) and 3:3′:5′-triiodothyronine (T′3) have been identified in plasma of rats injected with 131INa. These compounds are present in very small quantities. l-thyroxine represents in general three quarters of the hormonal iodine just as in the thyroid gland. 3:3′-diiodothyronine and 3:3′:5′-triiodothyronine are secreted into plasma by the gland. However the former, whose formation in the tissues from 3:5:3′-triiodothyronine has been established, can also be partly of peripheral origin and present together with very small quantities of various thyroid hormone metabolites which can accompany them in plasma.Keywords
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