Analytical performances achieved by the ‘Aria II’ automatic system in an interlaboratory survey triiodothyronine and thyroxine assays

A new chemiluminescence immunoassay for triiodothyronine and thyroxine: evaluation using quality control sera assayed in an interlaboratory survey.

A recently developed chemiluminescence immunoassay system (LIA-mat) for triiodothyronine and thyroxine, set up by Byk-Sangtec Diagnostica (Dietzenbach, Germany), has been evaluated and compared with radioimmunoassays and with a chemiluminescence enhanced enzyme immunoassay (Amerlite), using control materials circulated in a national interlaboratory quality control, as well as patient sera. The ...

Automated measurement of serum thyroxine with the "ARIA II," as compared with competitive protein binding and radioimmunoassay.

Two conventional serum thyroxine assays, run in separate laboratories, one by competitive protein binding and one by radioimmunoassay, were used to evaluate the automated ARIA II (Becton Dickinson Immunodiagnostics) serum thyroxine assay. Competitive protein binding as compared to ARIA II with 111 clinical serum samples gave a slope of 1.04 and a correlation coefficient of 0.94. The radioimmuno...

Evaluation of assays for thyroxine, triodotyronine and thyroid-stimulating hormone on the ARIA II automated radioimmunoassay instrument

The effect of baclofen on growth hormone, thyroxine, and triiodothyronine in Holstein cows

In this research study, the effect of baclofen (GABAB receptor agonist) on mean concentration of growth hormone, thyroxine, and triiodothyronine was examined. For this purpose, twelve Holstein Cows were divided into four groups. Then, each cow received daily injection of 25, 50, 75, and l00 mg/kg of baclofen for a period of four days. Blood samples were daily collected at one time point for eig...

Effect of thyroxine injection on female growth performance and hematological parameters of sterlet sturgeon (Acipenser ruthenus)

Thyroid hormones [triiodothyronine (T3) and thyroxine (T4)] are also known to play an important function in other biological processes such as growth, sexual development and metabolism in different fish species. Therefore, the objective of this study was to examine the effects of T4 injection on growth performance and hematological indices in sterlet sturgeon (Acipenser ruthenus) broodstock. Th...