1 Centre National de la Recherche Scientifique, University of Strasbourg, Institut des Neurosciences Cellulaires et Intégratives, Strasbourg, France.
2 Schaller Research Group on Neuropeptides, German Cancer Research Center, Central Institute of Mental Health, University of Heidelberg, Mannheim and Heidelberg, Baden-Wﺰrttemberg, Germany.
3 Centre National de la Recherche Scientifique, University of Strasbourg, Institut des Neurosciences Cellulaires et Intégratives, Strasbourg, France. acharlet@unistra.fr.
4 University of Strasbourg Institute for Advanced Study, USIAS, Strasbourg, France. acharlet@unistra.fr.