Zobrazeno 1 - 10
of 234
pro vyhledávání: '"Claude Kordon"'
Publikováno v:
médecine/sciences. 20:909-915
Le facteur d’impact, établi par l’Institute for Scientific Information (ISI), est fréquemment utilisé pour évaluer les chercheurs et leurs programmes. Sur la base d’exemples, cet article propose quelques clés pour analyser les conditions e
Autor:
Valérie Mitchell, Claude Kordon, Martine Perret, Jean-Claude Beauvillain, Sebastien G. Bouret, Jacques Epelbaum, Alain Schilling
Publikováno v:
Journal of Comparative Neurology. 429:469-489
The forebrain and pituitary sites of synthesis of growth hormone secretagogue-receptor mRNA were identified in four adult lemurs (Microcebus murinus) by in situ hybridisation performed with a radiolabeled cRNA probe transcribed from human Growth Horm
Autor:
Raimundo Ubieta, Claude Kordon, Annie Faivre-Bauman, Jerome Niquet, Catherine Loudes, Jean-Louis Charli
Publikováno v:
Developmental Brain Research. 118:39-49
Coculture of adult pituitary intermediate lobe (IL) cells, a target for hypothalamic dopaminergic neurons, with fetal rat hypothalamic cells accelerate differentiation of dopaminergic neurons. This involves long range diffusible as well as additional
Publikováno v:
European Journal of Neuroscience. 11:617-624
We have previously demonstrated that differentiation of hypothalamic dopaminergic (DA) neurons can be induced in culture by their pituitary intermediate lobe target cells, through both membrane and diffusible factors. We also showed that subpopulatio
Publikováno v:
Neuroendocrinology. 70:343-352
Somatotropes and GC cells, a GH-producing cell line, exhibit [Ca2+]i oscillations that result from rhythmic Ca2+ action potentials. Determination of this operating mode required simultaneous recording of both parameters by fura-2 imaging and patch-cl
In mammals, a robust physiologic system acts to maintain relative constancy of weight. A key element of this system is leptin. The nature of this'brain-somatic'cross talk is as yet poorly understood, but it is likely to have important implications fo
Publikováno v:
Molecular and Cellular Endocrinology. 142:99-117
Exposure of the gonadotrope cells to gonadotropin-releasing hormone (GnRH) reduces their responsiveness to a new GnRH stimulation (homologous desensitization). The time frame as well as the mechanisms underlying this phenomenon are yet unclear. We st
Autor:
Robert C Cannon, Stephan Vigues, Claude Kordon, Annie Arnoux, Renata Kwiecien, Constance Hammond, Christophe Robert
Publikováno v:
The Journal of Physiology. 508:883-905
1. Cells derived from a rat pituitary tumour (GC cell line) that continuously release growth hormone behave as endogenous pacemakers. In simultaneous patch clamp recordings and cytosolic Ca2+ concentration ([Ca2+]i) imaging, they displayed rhythmic a
Autor:
Claude Kordon, M. Priam, D. Gourdji, Dragan Djordjijevic, Jacques Epelbaum, Ji Zhang, Cécile Viollet
Publikováno v:
Endocrinology. 139:2272-2277
In the present study, we tested whether 17beta-estradiol (E2)-induced PRL sensitivity to somatostatin-14 (SRIF) involves selective up-regulation of discrete somatostatin receptor subtypes (ssts) in primary cultures of female rat pituitary cells. The
Publikováno v:
Neuroendocrinology. 68:386-394
Under control incubation conditions, gonadotropin-releasing hormone (GnRH) binds only a fraction of its receptors in rat-cultivated pituitary cells. Unmasking of the remaining receptors, which have been termed ‘cryptic’, requires drug- or peptide