BACKGROUND & OBJECTIVES Thyroid hormone binding protein (THBP) abnormalities are the major cause of discordance in commonly performed total thyroxine (T4) and thyrotropin (TSH) estimations, though these do not interfere with thyroid hormone action. Determination of such abnormalities in patients showing discordant thyroid function tests (TFTs) is diagnostically important as it eliminates equivo...

The pituitary-Thyroid axis of 12 Acromegalic patients was evaluated by measurement of the concentration (Total and free of thyroxine T4, T3 and revers T3 (rT3) and TSH, GH and prolactin before and after in stimulation with TRH. Using an ultra­sensitive method of TSH measurement (IRMA) basal serum TSH levels of patients (0.76, 0.07-l.90mlU/L) were found slightly but significantly (P < 0.01), low...

OBJECTIVE Thyroid hormones influence the GH/IGF1 axis, but previous studies have reported discrepant results regarding serum IGF1 levels in hyperthyroidism. We have therefore investigated, at diagnosis, the relationship between serum IGF1 levels and the main characteristics of Graves' disease (GD): severity of hyperthyroidism, goiter size, presence of active Graves' ophthalmopathy (GO), antythy...

Background It is well documented that overt hypothyroidism is associated with adverse pregnancy outcomes, but studies of subclinical hypothyroidism have demonstrated conflicting results. Objective Thyroid hormones are known to regulate mitochondrial function, and the aim of this study was to examine the possible relationship of subclinical hypothyroidism and mitochondrial dysfunction to adver...

To better interpret previously described hormonal changes observed during the natural postweaning fast (2-3 months) endured by pups of the northern elephant seal (Mirounga angustirostris), we compared plasma cortisol, thyroid hormones, and leptin in pups (n=5) measured during nursing and fasting periods. Blood samples were taken at four times; early (9 days postpartum) and late (18-22 days post...

INTRODUCTION Failures in apoptotic pathways can contribute to various autoimmune diseases, including autoimmune hyperthyroidism due to Graves' disease (GD). The aim of the present research was to assess changes in the degree of peripheral blood (PB) lymphocyte apoptosis during methimazole (MMI) treatment in the group of teenage children, and to describe its relationship with thyroid function te...

PURPOSE To investigate angiogenesis in the thyroid of Graves' disease (GD) treated with thyroid arterial embolization through analysis of vascular endothelial growth factor (VEGF), basic fibroblast growth factor (bFGF) and microvessel density (MVD). MATERIALS AND METHODS Forty-two GD patients were treated with thyroid arterial embolization and followed up for 1-68 months after embolization. B...

OBJECTIVE To evaluate the clinical and hormonal characteristics of patients with Sheehan's syndrome in Xinjiang, China. METHODS 97 cases diagnosed as Sheehan's syndrome in our hospital from 1999 to 2013 were retrospectively reviewed. The medical history, physical examination findings and hormonal profiles were documented and analyzed. RESULTS The mean age at diagnosis was 43.7±12.4 years, w...

OBJECTIVE Deficiencies of vitamin A and iodine are common in many developing countries. Vitamin A deficiency (VAD) may adversely affect thyroid metabolism. The study aim was to investigate the effects of concurrent vitamin A and iodine deficiencies on the thyroid-pituitary axis in rats. DESIGN Weanling rats (n = 56) were fed diets deficient in vitamin A (VAD group), iodine (ID group), vitamin...