The radioimmunoassay of triiodothyronine and its clinical application.
نویسندگان
چکیده
منابع مشابه
Positive interference in Radioimmunoassay determination of serum total T3
Introduction: Determination of thyrotropin, total and free thyroxine and triiodothyronine are widely used as diagnostic methods for thyroid function evaluation. There have been numerous reports of interferences in thyroid hormone immunoassays. Herein, a prominent positive interference is reported for a radioimmunoassay kit of total triiodothyronine. Materials and Methods: In this study, a total...
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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...
متن کاملRemoval of an endogenous antigen from an antibody to increase its effective affinity constant, as illustrated by triiodothyronine assay.
Antisera to triiodothyronine were shown to contain large quantities of the hormone, well in excess of normal circulating concentrations. Extracting the triiodothyronine from the antiserum with alkaline ethanol yielded an antibody of increased affinity. Use of this antibody in a radioimmunoassay resulted in a fourfold increase in sensitivity as compared with the unextracted material.
متن کاملSerum triiodothyronine: measurements in human serum by radioimmunoassay with corroboration by gas-liquid chromatography.
Serum triiodothyronine (T(3)) has been measured by radioimmunoassay and corroborated by analysis of the identical samples with a previously described gas-liquid chromatographic technique. Special features of the radioimmunoassay procedure which permit determinations in unextracted serum include the use of a T(3)-free serum preparation for the construction of the standard curve and of tetrachlor...
متن کاملStudy of the effects of Neuropeptide Y injections on plasma concentrations of Thyroxine and triiodothyronine in goat
Introduction: Neuropeptide Y (NPY) is the most abundant peptide present in mammals' brains. The majority of NPY-producing neurons is in arcuate and paraventricular nuclei of hypothalamus which affect hypophysiotrapic factors secretion. In this study we investigated the effect of intravenous injections of various doses of NPY on thyroxine (T4) and triiodothyronine (T3) serum concentrations. ...
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عنوان ژورنال:
- Journal of clinical pathology
دوره 28 3 شماره
صفحات -
تاریخ انتشار 1975