نتایج جستجو برای: tsh levels in newborns
تعداد نتایج: 17024599 فیلتر نتایج به سال:
TSH is the most important biomarker in the interpretation of thyroid function in man. Its levels are determined by circulating thyroid hormone (TH) levels that feed back centrally to regulate the expression of the subunits that comprise TSH from the pituitary. The nuclear corepressor 1 (NCoR1), is a critical coregulator of the TH receptor (TR) isoforms. It has been established to play a major r...
BACKGROUND Some investigators reported that among athyreotic patients on levothyroxine (LT4) monotherapy following total thyroidectomy, the patients with normal serum thyrotropin (TSH) levels had mildly low serum free triiodothyronine (fT3) levels, whereas the patients with mildly suppressed serum TSH levels had normal serum fT3 levels, and the patients with strongly suppressed serum TSH had el...
Although pharmacological doses of glucocorticoids suppress TSH secretion, less is known regarding the effects of physiological variations in cortisol levels on TSH. To study this issue, 12 healthy subjects each underwent 2 studies, in random order: 1) each subject received an infusion of saline for 48 h; and 2) each subject received an infusion of saline and oral administration of metyrapone (5...
the ideal approach for adequate management of subclinical hyperthyroidism (low levels of thyroid-stimulating hormone [tsh] and normal thyroid hormone level) is a matter of intense debate among endocrinologists. the prevalence of low serum tsh levels ranges between 0.5% in children and 15% in the elderly population. mild subclinical hyperthyroidism is more common than severe subclinical hyperthy...
the speech act of disagreement has been one of the speech acts that has received the least attention in the field of pragmatics. this study investigates the ways power relations, social distance, formality of the context, gender, and language proficiency (for efl learners) influence disagreement and politeness strategies. the participants of the study were 200 male and female native persian s...
The well known effect of T4 administration is suppression of TSH level in plasma; with small doses of T4 has been shown to potentiate goitrogenesis induced by goitrogenic drugs. The effects of hort term treatment with sm3.11doses of T4 on plasma and pituitary TSH levels were studied in mice, Very sm3.11doses of T4 caused an increase in circulating TSH while larger dose produced the usual decrea...
this study aimed at examining the effects of iranian efl learners’ anxiety, ambiguity tolerance, and gender on their preferences for corrective feedback (cf, henceforth). the effects were sought with regard to the necessity, frequency, and timing of cf, types of errors that need to be treated, types of cf, and choice of correctors. seventy-five iranian efl students, twenty-eight males and forty...
Knowledge of the effect of differences in iodine intake levels on public health in areas with no endemic goiter is limited. Groups at risk when iodine intake is relatively low are pregnant and lactating women and their newborns. A prospective randomized study was performed to evaluate the effect of iodine supplementation in an area where the median daily iodine excretion in urine is around 50 m...
Abstract Background Hypothyroxinemia is defined by low levels of thyroxine (T4) despite or normal thyroid-stimulating hormone (TSH). This study aimed to evaluate the factors associated with transient hypothyroxinemia prematurity (THOP) in newborns admitted neonatal intensive care unit (NICU). Method a single center, retrospective, case-control study. Premature newborns, between 24 and 34 weeks ...
the aim of this study has been to find answers for the following questions: 1. what is the effect of immediate correction on students pronunciation errors? 2. what would be the effect of teaching the more rgular patterns of english pronunciation? 3. is there any significant difference between the two methods of dealing with pronuciation errore, i. e., correction and the teaching of the regular ...
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