Forskolin stimulation of thyroid secretion of T4 and T3

Effects of Thyroid Hormone (T4, T3 ), Bromocriptine And Triac on Inappropriate TSH Hypersecretion

Inappropriate TSH hypersecretion was diagnosed in a 34 years old woman. Earlier she had been treated by ablative therapy for hyperthyroidism. The present diagnosis was based on elevated basal serum TSH levels despite elevated serum free thyroid hormone level. Her TSH responses to TRH (peak value 240 mu/I) was high. Her albumin and prealbumin levels were normal. The serum TBG level, alpha subuni...

Thyroid Hormones, T3 and T4, in the Brain

Thyroid hormones (THs) are essential for fetal and post-natal nervous system development and also play an important role in the maintenance of adult brain function. Of the two major THs, T4 (3,5,3',5'-tetraiodo-l-thyronine) is classically viewed as an pro-hormone that must be converted to T3 (3,5,3'-tri-iodo-l-thyronine) via tissue-level deiodinases for biological activity. THs primarily mediat...

Clinical Profile of Thyroid Associated Ophthalmopathy and Relationship of Exophthalmos to Serum T3,T4 Status

Effect of ICV injection of ghrelin and leptin on T3 and T4 plasma levels in Rat

Introduction: Ghrelin, increases food intake, decreases T3 and T4 concentrations and stimulates insulin release, while leptin reduces food intake and suppresses appetite. Considering the importance of thyroid hormones, ghrelin and leptin in body metabolism, the purpose of this study was to investigate the effect of interactions between ghrelin and leptin (injected via ICV route) and plasma T...

Effects of TRH and GRF administration on GH, TSH, T4 and T3 secretion in the lamb.

The effects of various amounts of thyrotropin-releasing hormone (TRH) injected subcutaneously or intravenously (alone or in combination with growth hormone-releasing factor: GRF 1-44) on growth hormone (GH), thyroid-stimulating hormone (TSH), thyroxine (T4) and triiodothyronine (T3) were studied in the plasma of 2-week, 2-month and 3-month old lambs. After subcutaneous TRH administration, incre...