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sum of reciprocal effects on production and removal. On the production side, leptin activates hypophysiotropic thyrotrophin-releasing hormone (TRH) neurons directly via its receptor, as well as indirectly by modulating the production of the
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insulin action ( Giannarelli et al. 2003 ). At the level of the liver, metformin increases insulin-mediated suppression of hepatic glucose production, mainly by reducing gluconeogenesis. In skeletal muscle it promotes insulin receptor phosphorylation
Section of Endocrinology, Laboratorio in Rete del Tecnopolo Tecnologie delle Terapie Avanzate (LTTA), Division of Internal Medicine I, Department of Neurosurgery, Neurosurgery Unit, Department of Medical Sciences, University of Ferrara, Via Savonarola 9, 44100 Ferrara, Italy
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Section of Endocrinology, Laboratorio in Rete del Tecnopolo Tecnologie delle Terapie Avanzate (LTTA), Division of Internal Medicine I, Department of Neurosurgery, Neurosurgery Unit, Department of Medical Sciences, University of Ferrara, Via Savonarola 9, 44100 Ferrara, Italy
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Section of Endocrinology, Laboratorio in Rete del Tecnopolo Tecnologie delle Terapie Avanzate (LTTA), Division of Internal Medicine I, Department of Neurosurgery, Neurosurgery Unit, Department of Medical Sciences, University of Ferrara, Via Savonarola 9, 44100 Ferrara, Italy
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effectively employed to treat CD but needs permanent glucocorticoid supplementation ( Porpiglia et al . 2004 ). Several medical therapies, including steroidogenic inhibitors, centrally acting agents, and glucocorticoid receptor inhibitors, are currently being
Department of Animal Physiology, Departamento de Biología, Instituto de Zoología, Institute for Water and Wetland Research, Faculty of Science, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
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Department of Animal Physiology, Departamento de Biología, Instituto de Zoología, Institute for Water and Wetland Research, Faculty of Science, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
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-to-T 3 conversion. However, we cannot exclude a feedback mechanism in which cortisol reduces the activity of hypothalamic corticotropin-releasing hormone (CRH), urotensin-I (UI), and thyrotropin-releasing hormone (TRH), factors with both
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increase to inhibit fetal GSIS. Experimental interventions to disrupt catecholamine signaling are depicted. Pharmacological adrenergic receptor blockade enhanced GSIS in PI-IUGR fetuses at 70% and 90% gestation, providing even more evidence that
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thyroid-stimulating hormone (TRF/TRH). Those for prolactin (dopamine, a release-inhibiting factor), ACTH (CRF/CRH), and growth hormone (GRF/GHRH and somatostatin) were identified at various times during the following decade. The structures of oxytocin and
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-releasing hormone (TRH), which is secreted by the hypothalamus. Unbound or free T3 and T4 (fT3 and fT4 respectively) exert a negative feedback on the synthesis and release of TSH and TRH in order to maintain circulating thyroid hormone levels within the required
Department of Endocrinology, CI Parhon National Institute of Endocrinology, Department of Endocrinology, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
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isolated disorder. This last condition is called familial isolated PA (FIPA); 15% of these cases harbor germline mutations of the AIP gene (encoding the aryl-hydrocarbon receptor interacting protein), but the responsible gene mutation is unknown in the
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-protein diet changes deiodinase activities and pituitary TSH response to TRH in adult rats . Experimental Biology and Medicine 233 57 – 63 . Liu RH Mizuta M Matsukura S 2004 The expression and functional role of nicotinic acetylcholine receptors
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(in females) regulate TSH receptor levels in the immature rat thyroid, suggesting that postnatal elevation of sex steroids might have a physiological relevance to the TSH-induced mitogenic activity in thyrocytes. The postnatal surge in sex steroids