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| http://dx.doi.org/10.1113/JP274545 | DOI Listing |
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'Synaptic autocontrol'.
J Physiol
August 2017
División de Neurociencias, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Mexico City, Mexico.
A store-operated current (SOC) mediates oxytocin autocontrol in the developing rat hypothalamus.
Eur J Neurosci
July 2006
Institut de Génomique fonctionnelle, CNRS UMR 5203, INSERM U661, University Montpellier I et II, 141 Rue de la Cardonille, 34094 Montpellier Cedex, France.
Oxytocin (OT) and vasopressin (VP) autocontrol their secreting neurons in the supraoptic nucleus (SON) by modulating action potential firing through activation of specific metabotropic receptors. However, the mechanisms linking receptor activation to firing remain unknown. In almost all cell types, activation of plasma membrane metabotropic receptors triggers signalling cascades that induce mobilization of calcium from intracellular stores.
View Article and Find Full Text PDFInsulin-like growth factor-1 inhibits adult supraoptic neurons via complementary modulation of mechanoreceptors and glycine receptors.
J Neurosci
March 2005
Biologie des Neurones Endocrines, Centre National de la Recherche Scientifique (CNRS) Unité Mixte de Recherche 5101, Institut National de la Santé et de la Recherche Médicale de Pharmacologie et d'Endocrinologie, 34094 Montpellier Cedex 5, France.
In the CNS, insulin-like growth factor-1 (IGF-1) is mainly known for its trophic effect both during development and in adulthood. Here, we show than in adult rat supraoptic nucleus (SON), IGF-1 receptor immunoreactivity is present in neurons, whereas IGF-1 immunoreactivity is found principally in astrocytes and more moderately in neurons. In vivo application of IGF-1 within the SON acutely inhibits the activity of both vasopressin and oxytocin neurons, the two populations of SON neuroendocrine cells.
View Article and Find Full Text PDFInterplay between presynaptic and postsynaptic activities is required for dendritic plasticity and synaptogenesis in the supraoptic nucleus.
J Neurosci
January 2002
Centre National de la Recherche Scientifique Unité Mixte de Recherche 5101, Biologie des Neurones Endocrines, 34094 Montpellier Cedex 5, France.
Developing oxytocin and vasopressin (OT/AVP) supraoptic nucleus (SON) neurons positively autocontrol their electrical activity via dendritic release of their respective peptide. The effects of this autocontrol are maximum during the second postnatal week (PW2), when the dendritic arbor transiently increases and glutamatergic postsynaptic potentials appear. Here, we studied the role and interaction of dendritic OT/AVP release and glutamate release in dendritic plasticity and synaptogenesis in SON.
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