نتایج جستجو برای: tsh
تعداد نتایج: 8615 فیلتر نتایج به سال:
مقدمه : فیبریلاسیون دهلیزی می تواند از تظاهرات قلبی پرکاری تیروئید باشد ولی در مورد نقش تیروئید در سایر تاکی آریتمی های فوق بطنی و نیز نقش فرم های تحت بالینی اختلالات عمل تیروئید در این آریتمی ها، اطلاعات ناکافی است. لذا مطالعه حاضر با هدف تعیین سطح tsh سرم به عنـوان شـاخص اصلـی اختـلالات عملکـرد تیروئیـد با بروز تاکـی آریتمی های فوق بطنی در بیمارستان دکتر بهشتی زنجان در سال 80-1379 انجام شد. ر...
Serum thyrotrophin (TSH) was estimated by double-antibody radioimmunoassay in 200 children aged 2 months to 16 years with normal thyroid function. There was no apparent variation in TSH with age or sex and only 4 children had TSH levels greater than 5 muU/ml. High TSH values were obtained in 9 children with primary hypothyroidism, in 3 children with thyroiditis, and in one girl with a lingual t...
OBJECTIVE Body weight and overt thyroid dysfunction are associated. Cross-sectional population-based studies have repeatedly found that thyroid hormone levels, even within the normal reference range, might be associated with body weight. However, for longitudinal data, the association is less clear. Thus, we tested the association between serum thyrotropin (TSH) and body weight in a community-b...
Objective. Thyroid-stimulating-hormone (TSH) receptors are expressed in endothelial cells. We investigated whether elevated TSH levels after acute recombinant TSH (rhTSH) administration may result in alterations in blood pressure (BP) in premenopausal women with well-differentiated thyroid carcinoma (DTC). Designs. Thirty euthyroid DTC female patients were evaluated by rhTSH stimulation test (m...
BACKGROUND Little is known about changes in thyroid function in obese children. An influence of leptin on thyroid hormone synthesis has been proposed. AIMS To examine thyroid function and leptin concentrations in obese children. METHODS Triiodothyronine (T3), thyroxine (T4), thyroid stimulating hormone (TSH), and leptin were measured in 118 obese children (aged 4.5-16 years); thyroid functi...
Many patients present to the surgical department with a thyroid nodule. However not all require surgery and only 5-6% of these are malignant. There are many methods to diagnose and predict malignancy in a thyroid nodule. This study throws light on the usefulness of TSH (thyroid stimulating hormone) estimation and its role in predicting malignancy. This is a prospective study involving 100 patie...
Thyrotropin (TSH) regulates thyroid cell proliferation and function through cAMP-mediated signaling pathways that activate protein kinase A (PKA) and Epac/Rap1. The respective roles of PKA versus Epac/Rap1 in TSH signaling remain unclear. We set out to determine whether PKA and/or Rap1 mediate extracellular signal-regulated kinase (ERK) activation by TSH. Neither blocking Rap1 activity nor sile...
Thyroid-stimulating hormone (TSH) is a sensitive indicator of thyroid function. High and low TSH levels reflect hypothyroidism and hyperthyroidism, respectively. Even within the normal range, small differences in TSH levels, on the order of 0.5-1.0 mU/l, are associated with significant differences in blood pressure, BMI, dyslipidemia, risk of atrial fibrillation and atherosclerosis. Most of the...
When newborn screening (NBS) for congenital hypothyroidism (CH) using thyroid-stimulating hormone (TSH) as a primary screening test was introduced, typical TSH screening cutoffs were 20-50 U/L of whole blood. Over the years, lowering of TSH cutoffs has contributed to an increased prevalence of detected CH. However, a consensus on the benefit deriving from lowering TSH cutoffs at screening is la...
کم کاری تیرویید یکی از شایع ترین اختلالات غدد درون ریز بدن به شمار میررود کره با جایگزینی هورمون با لووتیروکسین درمان می گردد اما ارتباط کلینیکی مناسبی بین درمان کم کاری تیرویید )به مدت 6ماه ( وبهتر شدن علائم خستگی ) که مربوط به کیفیرت زنردگی هرد بررای بهترر hst است ( در زنان مبتلا به کم کاری تیرویید دیده نشده است و میرزان شدن علائم خستگی مشخص نیست.هد مطالعه ی کنونی تعیین بهترین نقطه ی برش ...
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