نتایج جستجو برای: free t4
تعداد نتایج: 526786 فیلتر نتایج به سال:
Background: To investigate thyroid function in preeclamptic patients in comparison with normal pregnant women. Methods: In this analytical cross-sectional study free Thyroxine (T4), and Thyroid Stimulating Hormone (TSH) levels were measured in 100 preeclamptic patients and were compared with Free T4 and TSH levels in 101 normal pregnant women in their third trimester of pregnancy. Patient...
The present study was undertaken to determine whether the capacity for 3,5,3',5'-tetraiodothyronine (T4) conversion into 3,5,3'-tri-iodothyronine (T3), as measured by the activity of thyroxine type II 5'-monodeiodinase (T4-5'D), was altered in the brains of young Zucker fa/fa rats during the period of intense maturation of the central nervous system (i.e. from 10 to 20 days of life). From 7 to ...
background: to investigate thyroid function in preeclamptic patients in comparison with normal pregnant women. methods: in this analytical cross-sectional study free thyroxine (t4), and thyroid stimulating hormone (tsh) levels were measured in 100 preeclamptic patients and were compared with free t4 and tsh levels in 101 normal pregnant women in their third trimester of pregnancy. patients with...
OBJECTIVE To determine serum CPK variation based on TSH e free T4 (FT4), and to assess serum CPK in pathological states of the thyroid (hyperthyroidism and hypothyroidism), in relation to the euthyroidism. MATERIAL AND METHODS We evaluated retrospectively 6,230 laboratory results of TSH and CPK from 2007 to 2011. From these, 3,369 had free T4 results. We evaluated the correlation between CPK ...
OBJECTIVE To study the relationship between suboptimal maternal thyroid function during gestation and breech presentation at term. DESIGN Prospective follow-up study during three trimesters of gestation. PATIENTS A total of 1058 Dutch Caucasian healthy pregnant women were prospectively followed from 12 weeks gestation until term (>or=37 weeks) delivery. MEASUREMENTS Maternal thyroid param...
Dear Editor, Interactions of thyroid hormone autoantibodies (THAAs) with thyroxine (T4) or triiodothyronine (T3) are less common than interactions of antibodies to thyroglobulin, microsomal thyroid peroxidase, and thyroid-stimulating hormone (TSH) receptor. Nevertheless, these THAAs have been reported to cause spurious thyroid function test (TFT) results, indicating that TFT results do not alwa...
Hashitoxicosis is an initial, transient, hyperthyroid phase that rarely affects patients with Hashimoto thyroiditis. We present here an unusual case of a child with Hashimoto thyroiditis and recurrent hyperthyroidism. A 4 yr 6/12 old male was diagnosed by us with autoimmune subclinical hypothyroidism (normal free T4, slightly elevated TSH, and elevated TG antibody titer). Two years and 6/12 lat...
Fipronil is a widely used phytosanitary product and insecticide for pets. In the rat, fipronil can disrupt thyroid function by decreasing plasma concentrations of total thyroxine (T4) likely through increased T4 clearance. However, the mechanism of fipronil action on thyroid function remains unclear. The goals of the present study were to evaluate the effects of fipronil on thyroid hormone (TH)...
Background: Thyroid function tests are among the most commonly ordered laboratory tests in the province. In the past, investigations of thyroid disease required more than one test. Sensitive thyroid stimulating hormone (TSH) is the initial test in the diagnosis of hypothyroidism and hyperthyroidism. Free T4 is preferred over total T4 (TT4) measurement to confirm the diagnosis of hypothyroidism ...
CONTEXT Familial dysalbuminemic hyperthyroxinemia, characterized by abnormal circulating albumin with increased T4 affinity, causes artefactual elevation of free T4 concentrations in euthyroid individuals. OBJECTIVE Four unrelated index cases with discordant thyroid function tests in different assay platforms were investigated. DESIGN AND RESULTS Laboratory biochemical assessment, radiolabe...
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