Reverse triiodothyronine (rT3), triiodothyronine (T3), thyroxine (T4), thyroxine binding globulin (TBG), and thyrotrophin (TSH) were measured in sera from placental cord blood in an unselected series of 272 deliveries. In this series the concentrations of rT3 (mean 3.33 nmol/l, 95% confidence limits 1.6--7.0 nmol/l), were log normally distributed and did not overlap the adult normal range (0.11...

The relative independence of serum T-3 from changes in thyroid binding protein levels makes it a more effective screening test for hyper- and hypothyroidism than the T-4 assay alone. In fact, its efficiency is comparable to that of the free T-4 index.

To establish their role in monitoring patients receiving thyroxine replacement biochemical tests of thyroid function were performed in 148 hypothyroid patients studied prospectively. Measurements of serum concentrations of total thyroxine, analogue free thyroxine, total triiodothyronine, analogue free triiodothyronine, and thyroid stimulating hormone, made with a sensitive immunoradiometric ass...

correct the name of the thyroid hormone in the title; " L-3,5,4'-Triiodothyronine " was corrected to read " L-3,5,3'-Triiodothyronine. " Please download this article again to view the correct version. The originally published, uncor-rected article and the republished, corrected article are provided here for reference. Copyright: © 2015 Westergard et al. This is an open access article distribute...

Erythrocytes are hemolyzed by myeloperoxidase, an H2O2-generating system (glucose + glucose oxidase; hypoxanthine + xanthine oxidase) and an oxidizable cofactor (chloride, iodide, thyroxine, triiodothyronine). The combined effect of chloride and either iodide or the thyroid hormones is greater than additive. Myeloperoxidase can be replaced by lactoperoxidase in the iodide-, thyroxine and triiod...

The aim of this research was to evaluate the role zinc supplementation on reduction heat stress in local lambs during hot season. In current experiment, twenty-seven were housed indoor individual pens (1.50 × 1.30m). Zinc added fresh drinking water three different levels namely T1 (0 mg Zn/day), T2 (36 Zn/day) and T3 (72 Zn/day). Serum (zinc; µmol/L), Alkaline phosphate (ALP; U/I), Alanine amin...

To the Editor: Iervasi et al1 report a strong correlation between low free biologically active triiodothyronine (fT3), a thyroid hormone, and all-cause and cardiovascular mortality in 573 consecutive patients with heart disease. The observations in this study are stimulating and may be of major clinical interest. However, the following points deserve to be clarified for better appreciating the ...

A radioimmunoassay procedure to measure triiodothyronine (T3) in unextracted urine is described. One hundred microliter of T3 standards or samples were incubated with 100 microliter of T3 antiserum (1:40,000), 100 microliter of tracer 125I-T3 and 700 microliter of 0.05 M borate buffer, pH 8.6. Separation of free from bound antigen was achieved by dextran coated charcoal. The cross-reaction of L...