objectives we aimed to assess the prevalence of autoimmune thyroid disorders among patients with vitiligo who referred to sina hospital of hamadan in west of iran in 2008. patients and methods this case-control study comprised 45 patients with vitiligo and 45 healthy individuals (control group). data on age, gender, family history of vitiligo, distribution pattern and duration of the disease we...

Different indexes of thyroid function were determined in conjunction with values obtained with a new commercial radioimmunoassay kit for serum free thyroxin, in 49 apparently healthy subjects, 87 pregnant women, and 142 outpatients attending the thyroid clinic. The results indicate a diagnostic success rate of 88% when free thyroxin was measured instead of estimating the so-called free thyroxin...

We used an enzyme immunoassay to determine the normal reference intervals for thyroxin, triiodothyronine, and thyrotropin in groups of children, ranging from newborns to 15-year-olds. Results compared well with those by radioimmunoassay. There were no substantial differences between plasma and serum samples for thyroxin and triiodothyronine, but thyrotropin concentrations differed significantly...

In concentrations of 1:10(4), 1:10(5), 1:10(6), in alkaline solution with a hydrogen ion concentration approximating that characteristic of normal human blood, thyroxin acts like total thyroid in accelerating certain metabolic processes in Paramecium, notably those connected with the phenomena of excretion. Unlike total thyroid, thyroxin depresses the division rate of Paramecium, the degree of ...

We evaluated a new thyroxin analog-based assay for free thyroxin (FT4) (Corning Medical), finding it technically simple and precise (between-assay CVs of 3.3 and 4.2% for FT4 concentrations of 12 and 25 ng/L, respectively). We measured FT4 in a total of 325 serum samples from euthyroid patients; patients receiving replacement thyroxin; patients receiving estrogens or who were pregnant; hyperthy...

We assessed the clinical utility of measuring thyrotropin (TSH) in serum by immunoradiometry and of measuring total thyroxin (TT4), total triiodothyronine (TT3), free thyroxin (FT4), and free triiodothyronine (FT3). We used a group of 110 healthy volunteers, 45 ill hypoalbuminemic patients, and 42 ill normoalbuminemic patients. In addition, the free thyroxin index (FTI) and TT4:thyroxin-binding...

In a previous article (1) evidence was presented of increased susceptibility to chloroform poisoning produced in the albino rat by injection of crystalline thyroxin. The present study was undertaken to obtain data that might throw light on the mechanism of this phenomenon, and was centered on two points. First: Is the increased susceptibility to chloroform poisoning in the hyperthyroid rat due ...

10. Amino N, Nishi K, Nakatani K, et al. Effect of albumin concentration on the assay of serum free thyroxin by equilibrium radioimmunoassay with labeled thyroxin analog (Amerlex#{174} F’reeT4). Clin C/tern 29, 321-325 (1983). 11. Stockigt JR, Stevens V, White EL, Barlow JW. “Unbound analog” radioimmunoassay methods for free thyroxin measure the albumin-bound hormone fraction. Clin C/tern 29, 1...