نتایج جستجو برای: thyroid activity
تعداد نتایج: 1209947 فیلتر نتایج به سال:
STERN, J.J. The effects of thyroidectomy on the wheel running activity of female rats.-The wheel running activity of female rats was observed prior to and following thyroidectomy. Thyroidectomy significantly reduced overall activity and increased the interval between activity peaks; thyroid feeding corrected these effects. Thyroid feeding did not correct the effects in ovariectomized rats. The ...
Administration of a precise amount of activity in thyroid gland radioiodine (¹³¹I) therapy is of prime importance. Several methods for this purpose have been suggested and used over many years. In this paper, a method for required ¹³¹I activity calculation for each case has been proposed. Major factors affecting ¹³¹I calculation such as gland volume, integral dose, and prescription index have b...
Thyroid scanning is performed to examine the thyroid gland disorders using 99mTc. Through the obtained images can evaluate the size of the thyroid gland, the amount of its removal compared with the salivary gland, examine the thyroid nodules and its performance impairments. According to the scan view, it is possible to differentiate between hot and cold thyroid nodules that need different thera...
The effects of constant light and dark exposure of pubertal male rats on the pituitary-gonadal axis and thyroid activity were studied. The indices of thyroid activity were weight of the thyroid gland, estimation of serum levels of thyroxine (T4) by radioimmunoassay (RIA) technique and histological studies of the thyroid gland. The indices of gonadal activity chosen were weight and histological ...
PURPOSE Non-nutritive sweeteners are the most widely used food additives worldwide. However, their metabolic outcomes are still a matter of controversy and their effect on the thyroid activity, a key regulator of metabolism, has not been previously studied. Therefore, we aim to determine the influence of the sweet type flavour carrier on selected parameters of thyroid axis activity. METHODS M...
-We previously reported that thyroid hormone stimulates renin synthesis in vivo and in vitro. Here, we analyzed the 5'-flanking sequence of the human renin gene for promoter activity responsive to thyroid hormone using Calu-6 cells, which secrete renin endogenously and express thyroid hormone receptor-ss. The luciferase reporter gene was cloned together with 5'-flanking portions of the human re...
Thyroid transcription factor-1 (TTF-1, NKX2-1) is a homeodomain-containing transcriptional factor that binds to and activates the promoters of thyroid and lung-specific genes, such as thyroglobulin, thyroid peroxidase, and thyroid stimulating hormone receptor. TTF-1 is known to play a key role in the development of the thyroid. However, the precise mechanism of TTF-1 gene transcription in human...
Osteoporosis-related fractures are one of the complications of Graves' disease. This study hypothesized that the different actions of thyroid-stimulating hormone receptor (TSHR) antibodies, both stimulating and blocking activities in Graves' disease patients might oppositely impact bone turnover. Newly diagnosed premenopausal Graves' disease patients were enrolled (n = 93) and divided into two ...
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