Objective: The aim of the study is to evaluate the effectiveness of resin infiltration in the treatment of postorthodontic white spot lesions. Materials and Methods: This was clinical trial. 9 subjects with mean age 18.25 with multiple white spot lesions in incisors and premolars area were included in this study. Lesions (44 lesions) were treated by ICON-Infiltrant with assessment of the lesion...

The present study was designed to compare the Thyopac and Triosorb triiodothyronine uptake tests. A normal range was established for the two procedures. Neither test was affected by iodine-containing drugs or contrast media but abnormal results were obtained during pregnancy and in subjects receiving oestrogens. Both tests proved satisfactory in the diagnosis of hypo- and hyperthyroidism, givin...

Simultaneous advances in detector technology and solid-phase separation systems, as well as the availability of powerful desktop computers, have made possible the development of "second-generation" solid-phase immunoassays. These retain the advantages of classical solid phase while significantly accelerating reaction kinetics. Hapten assays--such as for digoxin, thyroxin, and triiodothyronine u...

In order to compare the acute effects of three kinds of antithyroid agents of iodide (I-), propylthiouracil (PTU) and PTU combined with iodide (PTU+I-) on thyroid function in hyperthyroid patients with diffuse goiter, serum concentrations of thyroxine (T4), triiodothyronine (T3), T3-resin sponge uptake (T3-RU) and free thyroxine index (FT4I) were employed as thyroid function parameters. In the ...

A new method for the estimation of the maximal T4-binding capacity of TBG (max. TBG) in serum (dextran-coated charcoal-triosorb method) was devised. Thyroxine (T4) concentration in test sera were determined by the Tetrasorb method and then T3 resin sponge uptake (T3 RSU) was determined after extraction of 70% of the endogenous T4 with dextran-coated charcoal. The binding capacity of unsaturate...

BACKGROUND The thyroid hormones influence on all metabolic pathways. After heart surgery using cardiopulmonary bypass (CPB), serum T3 decreases and remains low for at least 24 hours. Several studies on pediatric have reported reduction of thyroid hormones after heart surgery. This study aimed to investigate the status of thyroid function tests in children with CPB surgery. METHODS This study ...

The effect of isoflurane (Forane) anaesthesia and surgery on thyroid function was investigated in nine male patients. Isoflurane anaesthesia alone for 30 minutes prior to the start of surgery increased plasma triiodothyronine uptake (T3U) and thyroxine (T4) level by 18 and 20 per cent, respectively. Free thyroxine index (FTI) values in blood increased by 62 per cent during the same period. One ...

BACKGROUND: Many patients using warfarin may be at risk of international normalized ratio fluctuations. This may cause severe massive gastrointestinal or cerebral bleeding. Subclinical hypothyroidism in our population is highly prevalent (range from 3.1% to 8.4% for males and females respectively). Overt hypothyroidism diminishes the effect of warfarin but there is a lack of results on the effe...

     The aim of the present research was to study the effects of weak cation exchange resins, polacrilex with exchangeable H+ and polacrillin potassium and strong cation exchange resin sodium polystyrene sulfonate on water uptake behavior of ranitidine hydrochloride. Drug resin complexes (DRC) were prepared and evaluated for the percentage of moisture gain when placed in a humidity c...