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PMID |
Sentence |
1 |
707005
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Failure of growth hormone (hGH), cortisol and prolactin to respond to insulin induced hypoglycaemia (0.1 U/kg), of luteinizing hormone (LH) and follicle stimulating hormone (FSH) to respond to gonadotrophin releasing hormone (GnRH, 100 microgram) and of thyrotrophin (TSH) and prolactin to increase after thyrotrophin releasing hormone (TRH, 500 microgram), confirmed the diagnosis of panhypopituitarism.
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2 |
6342390
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Basal prolactin levels were elevated in 2 patients and failed to respond adequately to TRH in 2 other patients.
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3 |
3098456
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Prolactin was raised in all seven women and increased further in response to TRH.
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4 |
3118236
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The effects of thyrotropin-releasing hormone (TRH) and norvaline2-TRH (Nva2-TRH) on blood pressure, heart rate and plasma prolactin levels in conscious rats have been compared.
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5 |
3118236
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Thus, two contrasting analogues are now available: 4-NO2-Im-TRH (Neuropeptides, 8, 63, 1986) has full cardiovascular activity and no PRL-releasing activity, while Nva2-TRH has no cardiovascular activity and full PRL-releasing activity of TRH.
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6 |
1695481
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The addition of 200 microU/ml of insulin in the incubation media did not change the TRH-stimulated TSH release, but it decreased the basal TSH release by 42%.
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7 |
1695481
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In the same experimental conditions, no effect of insulin or glucose was seen on the basal or TRH-stimulated TSH release from thyrotrophs of diabetic rats.
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8 |
1901656
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Regulation of human thyrotropin beta subunit gene (TSHB) expression by thyrotropin-releasing hormone (TRH) was examined in a clonal rat pituitary-cell line (GH3).
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9 |
1901656
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DNase I footprinting analysis of mouse thyrotropic tumor extract as well as DNA-transfection studies using an expression vector containing an N-terminal deletion of Pit-1/GHF-1 cDNA suggest that Pit-1/GHF-1 or a closely related protein in the thyrotroph mediates TRH responsiveness of this gene.
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10 |
1901656
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The location of a TRH-stimulatory element near a thyroid hormone-inhibitory element may allow for fine control of TSHB expression in vivo.
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11 |
1726900
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We investigated thyrotropin releasing hormone (TRH) degradation in terms of half-life (t1/2) and metabolic clearance rate (MCR) in eight subjects with insulin dependent diabetes mellitus (IDDM) before and after strict metabolic control.
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12 |
1639022
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The data indicate that exogenous TRH enhances basal glucagon secretion; inversely, anti-TRH serum inhibits glucose plus arginine-induced glucagon secretion and produces a concomitant slight inhibition of somatostatin secretion.
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13 |
1639022
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The present study shows a physiological contribution for endogenous TRH as a local modulator of intraislet hormone regulation; from these observations, we postulate a direct effect of pancreatic TRH on glucagon-containing (alpha) cell secretion, which, in turn, may produce the fluctuation in somatostatin secretion.
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14 |
1355581
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To study the effect of CRH on anomalous GH response to TRH, we tested with TRH (200 micrograms intravenously [IV]) and CRH (100 micrograms IV) + TRH (200 micrograms IV) 13 patients (six males and seven women) affected by insulin-dependent diabetes mellitus.
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15 |
1355581
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Our data demonstrate that the paradoxical GH response to TRH in patients with type 1 diabetes mellitus is blocked by CRH administration.
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16 |
1480583
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Model experiments with primary monolayer cultures of isolated islet cells have helped demonstrate a direct insulinotropic effect of STH, TRH, C-terminal tetrapeptide cholecystokinin, opioid peptides and blood plasma of patients with insulin-dependent diabetes mellitus.
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17 |
11826765
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Cortisol and prolactin responded normally to a combined insulin tolerance test (ITT) and thyrotropin-releasing hormone (TRH) challenge, while thyroid-stimulating hormone (TSH) response to TRH was diminished, and no response of growth hormone to ITT was detected.
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18 |
15171688
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TRH increases insulin production in cultured beta-cells, suggesting that it might play a role in regulating pancreatic beta-cell function.
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19 |
15171688
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However, there is limited information on TRH receptor expression in the pancreas.
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20 |
15171688
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TRH receptor type 1 (TRHR1) gene expression was detected by RT-PCR and verified by Northern blotting and immunoblotting in the beta-cell lines, INS-1 and betaTC-6, and the rat pancreatic organ.
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21 |
15171688
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The absence of TRH receptor type 2 expression in the tissue and cells indicated the tissue specificity of TRH receptor expression in the pancreas.
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22 |
15171688
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In addition, TRH induced epidermal growth factor (EGF) receptor phosphorylation with a half-maximum concentration of approximately 50 nM, whereas the high affinity analogue of TRH, MeTRH, was 1 nM.
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23 |
15171688
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This suggested that the affinity of TRH ligands for the TRH receptor influences the activation of EGF receptor phosphorylation in betaTC-6 cells.
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24 |
16210367
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Because the central administration of leptin is capable of preventing the inhibitory effects of fasting on TRH mRNA in hypophysiotropic neurons primarily through effects on the arcuate nucleus, we determined whether the continuous administration of 30 mU/d insulin or 648 microg/d glucose into the cerebrospinal fluid by osmotic minipump might also have similar effects on the hypothalamic-pituitary-thyroid axis.
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25 |
16210367
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In contrast, whereas insulin increased proopiomelanocortin mRNA and both insulin and glucose reduced NPY mRNA in arcuate nucleus neurons, neither prevented the fasting-induced suppression in hypophysiotropic TRH mRNA or circulating thyroid hormone levels.
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26 |
16293347
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Thyrotropin-releasing hormone (TRH) is an endogenous antidepressant that reduces the expression of glycogen synthase kinase-3beta (GSK-3beta), an enzyme that hyperphosphorylates tau and is implicated in bipolar depression, diabetes and Alzheimer's disease.
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27 |
16310285
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Neuropeptide Y may also modulate the effects of the melanocortin signaling system during fasting by potentiating the inhibitory actions of AGRP on hypophysiotropic TRH neurons to prevent the phosphorylation of CREB and through direct inhibitory effects on alpha-MSH-producing neurons in the arcuate nucleus.
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28 |
18948837
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Most importantly, TRH treatment for several days stimulated apoptosis in hIPCs expressing approximately 400,000 TRHRs per cell.
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29 |
19179432
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Pyroglutamyl peptidase II (PPII), a highly specific membrane-bound metallopeptidase that inactivates TRH in the extracellular space, is tightly regulated by thyroid hormone in cells of the anterior pituitary.
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30 |
20457219
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The hyperglycemic and hyperinsulinemic effects of the TRH analog in the RVLM was peptide specific, since angiotensin II or a substance P analog at the same dose had weak or no effects.
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31 |
20338209
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Thyrotropin-releasing hormone (TRH) is an endogenous antidepressant-like neuropeptide that reduces the expression of glycogen synthase kinase-3beta (GSK-3beta), an enzyme that hyperphosphorylates tau and is implicated in bipolar disorder, diabetes and Alzheimer's disease.
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