PMID: 1190731May 1, 1975Paper

[Proceedings: Kinetics and disposal rate of triiodothyronine in patients with atuonomous hot nodular goiter, with or without thyrotoxicosis (author's transl)].

Annales d'endocrinologie
J MirouzeL Radjohnson

Abstract

Eight female patients are studied, four of them without hyperthyroidism. The following were measured before and after surgery = hormonal iodine by column, serum concentrations of T T3, AF T3, TSH, total T3 distribution space, T3 pool size T3 fractional turnover rate. T T3 is measured in the serum of peripheral venous blood, nodular venous blood and of jugular venous blood of the opposite side of the adenoma. Before surgery, the mean of T T3 in patients with hyperthyroidism is increased in serum obtained from brachial and not nodule venous blood. Are also increased AF T3 and T3 production rate. In patients without hyperthyroidism, T T3, AF T3 are increased in two subjects only, but T3 production rate is rised among three of them. After surgery the previous values are not different with normal values. These data are in good agreement with the hypothesis that, in patients without thyrotoxicosis, there is an increase in T3 production from not nodular goiter. There phenomena may explain unresponsiveness to TRH test and inactivity of normal thyroid. Absence of hyperthyroidism may be due to a lack of sensitivity of peripheral tissues to the increase of T3.

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