Plasma triiodothyronine at the end of pregnancy,in the cord blood and in the first days of the newborn |
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| Authors: | M. Hüfner R. -D. Hesch U. Heinrich D. Lüders |
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| Affiliation: | (1) Medizinische Poliklinik Heidelberg, Heidelberg, Germany;(2) Medizinische Klinik Göttingen, Göttingen, Germany;(3) Kinderklinik Heidelberg, Heidelberg, Germany;(4) Kinderklinik Göttingen, Göttingen, Germany |
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| Abstract: | Triiodothyronine (T3) and Thyroxine (T4) were measured in women after delivery, in the cord blood of their children and in the first days of life. Furthermore TSH was determined in the cord blood. Women immediately after delivery showed T3 and T4 concentrations in the upper normal range. In the cord blood T4 was normal, TSH elevated (9.2±7.4 uU/ml) and T3 in the hypothyroid range (0.5±0.17ng/ml). T3 increased to normal concentrations in most cases within 24 hrs; possible explanations of the low T3 levels under fetal conditions are discussed.Über Teile dieser Arbeit wurde am 19. Symposion der Deutschen Gesellschaft für Endokrinologie (Berlin 1973) vorgetragen. |
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| Keywords: | Fetal thyroid function Triiodothyronine |
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