نتایج جستجو برای: تیروتروپین tsh
تعداد نتایج: 8625 فیلتر نتایج به سال:
Subclinical hyperthyroidism is known to be associated with the risk of fractures in elderly people. However, there are few studies assessing whether low normal thyroid-stimulating hormone (TSH) levels affect bone density and geometry. Here, we aimed to assess the influence of the TSH level on bone mineral density (BMD) and geometry in elderly euthyroid subjects. This was a cross-sectional cohor...
The epitopes of human thyroid-stimulating hormone (hTSH) recognized by two murine monoclonal antibodies (MAbs), designated MAb 279 and MAb 299, have been characterized. These MAbs are highly specific for the beta-subunit of TSH. The epitope recognized by MAb 279 appears to be completely conserved between bovine and human TSH and partially conserved in the porcine species. The TSH beta-subunit e...
INTRODUCTION Patients with Down syndrome (DS) often have elevated TSH (hypothalamic origin), which is called TSH neurosecretory dysfunction (TSH-nd). In these cases, there is slight elevation in TSH (5-15 µUI/mL), with normal free T4 and negative thyroid antibodies (AB). OBJECTIVE To recognize the risk of progression to Hashimoto's thyroiditis (HT). SUBJECTS AND METHODS We retrospectively a...
A strategy for testing thyroid function with discretionary assay of thyroid stimulating hormone (TSH) following initial measurement of total plasma thyroxine (tT4) was retrospectively evaluated in relation to the diagnosis of primary hypothyroidism. Over a two year period 14 641 tT4 assays were done and 6887 TSH assays, of which 29% were initiated in the laboratory. The percentage of raised TSH...
CONTEXT The hypothalamus-pituitary-thyroid axis in Cushing's syndrome may be altered. Previous reports have shown diminished serum TSH concentration and decreased response to TRH. OBJECTIVE We analyzed serum TSH profiles in relation to cortisol profiles in patients with hypercortisolism of pituitary (n=16) or primary-adrenal origin (n=11) and after remission by pituitary surgery (n=7) in orde...
BACKGROUND It is now recognized that TSH can act on targets other than the thyroid, including the liver. Elevated serum TSH levels in euthyroid subjects were recently reported to correlate with high values of serum proprotein convertase subtilisin/kexin type 9 (PCSK9). This protein, expressed and secreted by hepatocytes, promotes higher LDL-cholesterol levels. We tested whether an acute increas...
The water soluble A subunit of the human TSH receptor has been shown to have an isoelectric point of 5. As both TSH and TSH receptor antibodies have isoelectric points in the region of 8-10, charge-charge interactions must be of major importance in the binding of hormone or antibody to the TSH receptor A subunit.
چکیدهمقدمه: ازآنجا‌که اختلال عملکرد نورواندوکرین به دنبال ضایعات ضربه‌ای مغز، علایم بالینی چندانی ایجاد نمی‌کند، به طور کلی تشخیص داده نشده و به سایر مشکلات جسمی و روحی به دنبال ضربه‌ی مغزی نسبت داده می‌شود. بر این اساس، بیشتر بیماران مورد درمان قرار نمی‌گیرند. این مورد ممکن است بر روند بهبودی آن‌ها تاثیرگذار باشد. پژوهش حاضر، به منظور ارزیابی وضعیت ترشحی هورمون‌های هیپوفیز قدامی در بیماران دچا...
The phenotypes of different mutant combinations of teashirt (tsh) and homeotic genes together with their regulatory interactions are described in order to gain insight into tsh gene function. We show that when tsh, Scr, Antp and BX-C genes are missing, the ventral part of the trunk (or thorax and abdomen) is transformed to anterior head identity showing that tsh is a homeotic gene. These genes ...
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