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Introduction Corticotropin-releasing hormone (CRH) neurons of the hypothalamic–pituitary–adrenal (HPA) axis integrate stress-dependent changes in neural input and direct negative feedback effects of glucocorticoids ( Dallman et al . 1987
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Introduction Variations in physiological demands on the hypothalamo-pituitary–gonadal axis during development and throughout adulthood produce some of the most profound central neuroendocrine changes seen. At the pituitary level
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pituitary cells, progesterone augmentation of GnRH-stimulated LH secretion can be demonstrated, but it is about half of that found for the rat and is only partially prevented by PR antagonists ( Turgeon & Waring 2001 ). Additionally in mouse gonadotropes
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(DIO) enzymes. Endogenous sex steroids, both estrogen and testosterone, play an important yet poorly defined role in regulation of the hypothalamus–pituitary–thyroid (HPT) axis and TH homeostasis. Clinical evidence demonstrated that female patients have
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Introduction Sex differences in hypothalamo–pituitary–adrenal axis (HPA) activity are well documented and a number of studies have demonstrated that gonadal steroids act as regulators of HPA activity ( Viau & Meaney 1991 , Freeman
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neuroendocrine and endocrine regulation, pituitary gonadotropins are also subject to local paracrine regulation by activin ( Yam et al . 1999 a , Yuen & Ge 2004 ), similar to the situation in mammals ( Roberts et al . 1989 , Corrigan et al . 1991
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Introduction During fasting, profound changes occur in the hypothalamic part of the hypothalamic–pituitary–thyroid axis (HPT axis), i.e. increased type 2 deiodinase (D2) activity in the arcuate nucleus (ARC) ( Diano et al. 1998
IGH/UPR, CNRS 1142, 141 rue de la Cardonille, 34396 Montpellier Cedex 05, France
Department of Animal Physiology, Faculty of Science, Toernooiveld 1, 6525 ED Nijmegen, The Netherlands
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IGH/UPR, CNRS 1142, 141 rue de la Cardonille, 34396 Montpellier Cedex 05, France
Department of Animal Physiology, Faculty of Science, Toernooiveld 1, 6525 ED Nijmegen, The Netherlands
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IGH/UPR, CNRS 1142, 141 rue de la Cardonille, 34396 Montpellier Cedex 05, France
Department of Animal Physiology, Faculty of Science, Toernooiveld 1, 6525 ED Nijmegen, The Netherlands
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IGH/UPR, CNRS 1142, 141 rue de la Cardonille, 34396 Montpellier Cedex 05, France
Department of Animal Physiology, Faculty of Science, Toernooiveld 1, 6525 ED Nijmegen, The Netherlands
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IGH/UPR, CNRS 1142, 141 rue de la Cardonille, 34396 Montpellier Cedex 05, France
Department of Animal Physiology, Faculty of Science, Toernooiveld 1, 6525 ED Nijmegen, The Netherlands
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Introduction Endocrine control of osmoregulation has been studied only in a limited number of teleostean species, with an emphasis on salmonids. These studies underline the importance of pituitary hormones, such as prolactin ( Hirano
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Introduction Differentiation of anterior pituitary cells is thought to be controlled by various factors from the hypothalamus, peripheral hormones and/or growth factors ( Schwardz 2000 , Denef 2003 ). In fetal mice, hormone-producing cells except
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Introduction Among the pituitary hormones, prolactin (PRL) is the most versatile in the spectrum and number of functions it regulates. PRL modulates virtually every aspect of vertebrate physiology, including osmoregulation, growth, metabolism