نتایج جستجو برای: thyrotropin
تعداد نتایج: 9159 فیلتر نتایج به سال:
We aimed to observe the association between degree of obesity and metabolic syndrome and plasma thyrotropin levels in obese, euthyroid Turkish patients. 947 obese and overweight patients who admitted to our outpatient clinic were assessed retrospectively. 150 healthy euthyroid cases were also recruited as the control group. Cases with metabolic syndrome were determined. Patients were divided in...
IMPORTANCE Some experts suggest that serum thyrotropin levels in the upper part of the current reference range should be considered abnormal, an approach that would reclassify many individuals as having mild hypothyroidism. Health hazards associated with such thyrotropin levels are poorly documented, but conflicting evidence suggests that thyrotropin levels in the upper part of the reference ra...
The microiontophoretic application of thyrotropin-releasing hormone causes a selective reduction in neuronal excitation evoked by L-glutamate but not by acetylcholine in rat cerebral cortex. Thyrotropin-releasing hormone has no influence on the activity of acetylcholinesterase or on choline uptake and release from cerebral synaptosomes. This evidence for a selective interaction between a centra...
To further evaluate thyroid function in patients with liver disease, we have measured total and free T3 and T4, thyroxine binding globulin, basal and thyrotropin releasing hormone-stimulated thyrotropin and thyroglobulin antibodies in 33 patients with liver cirrhosis, in 22 with chronic hepatitis and in 30 healthy controls. All the patients but one were clinically euthyroid. T3, FT3, T3/thyroxi...
Somatostatin in concentrations of 10(-6) to 10(-8) M inhibited basal release of thyrotropin releasing factor in organ culture of rat hypothalamus. Norepinephrine in doses of 10(-4)--10(-6) M induced release of thyrotropin releasing factor which increased progressively with time and was temperature and dose dependent. This enhanced thyrotropin-releasing-factor release was inhibited by somatostat...
Dear Editor, Case 1 was a 41-year-old man with history of primary hyperthyroidism. At the time diagnosis, thyroglobulin antibodies were elevated although no thyrotropin receptor (TRAB) available. The patient treated carbimazole for 20 months. cessation in May 2020, thyroid function and TRAB levels
596 CLINICAL CHEMISTRY, Vol. 37, No. 4, 1991 1. Howanitz PJ, Howanitz JH, Lamberson HV, Ennis KM. Incidence and mechanism of spurious increases in serum thyrotropin. Clin Chem 1982;28:427-31. 2. Boscato LM, Stuart MC. Incidence and specificity of interference in two-site inununoassays. Clin Chem 1986;32:1491-5. 3. Boscato LM, Stuart MC. Heterophilic antibodies: a problem for all immunoassays. C...
In the serum-free, chemically defined medium NCTC 109, freshly isolated porcine thyroid cells aggregate and form functional follicles in culture even in the absence of thyrotropin. The follicular pattern observed under light and electron microscopy express the main morphological characteristics of in vivo thyroid cells. Follicles are large, replete with dense colloid, and the apical pole of cel...
We describe an enzyme-immunoassay with photometric endpoint determination, suitable for the measurement of thyrotropin (TSH) in dried blood spotted on filter paper. Using reagents of a commercially available test kit provided for the measurement of thyrotropin in 200 microliter serum, we have adapted the method to the determination of thyrotropin in blood spots containing ca. 10 microliter bloo...
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