R
R. Rasolonjanahary
Researcher at French Institute of Health and Medical Research
Publications - 9
Citations - 296
R. Rasolonjanahary is an academic researcher from French Institute of Health and Medical Research. The author has contributed to research in topics: Anterior pituitary & Protein kinase C. The author has an hindex of 8, co-authored 9 publications receiving 295 citations.
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Journal ArticleDOI
Differential Modulation of D1 and D2 Dopamine‐Sensitive Adenylate Cyclases by 17β‐Estradiol in Cultured Striatal Neurons and Anterior Pituitary Cells
M. Maus,P. Bertrand,Sophia V. Drouva,R. Rasolonjanahary,Claude Kordon,Jacques Glowinski,Joël Prémont,Alain Enjalbert +7 more
TL;DR: An effect of 17β‐estradiol on DA target cells in both systems is demonstrated, suggesting that the steroid modifies the coupling process by a mechanism that still has to be elucidated.
Journal ArticleDOI
Alkaloids from Psychotria oleoides with activity on growth hormone release.
Francoise Gueritte-Voegelein,Thierry Sevenet,Jacques Pusset,Marie-Thérèse Adeline,Brigitte Gillet,Jean-Claude Beloeil,Daniel Guenard,Pierre Potier,R. Rasolonjanahary,Claude Kordon +9 more
TL;DR: The structure and configuration of psycholeine was determined by spectroscopic means and chemical correlation with quadrigemine C, and the stereochemistry of quadrigmine C was suggested to be tetrameric pyrrolidinoindoline compound of unknown stereochemistry.
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Dual mechanisms of inhibition by dopamine of basal and thyrotropin-releasing hormone-stimulated inositol phosphate production in anterior pituitary cells. Evidence for an inhibition not mediated by voltage-dependent Ca2+ channels.
Alain Enjalbert,Gilles Guillon,Bernard Mouillac,Valérie Audinot,R. Rasolonjanahary,Claude Kordon,Joël Bockaert +6 more
TL;DR: The results suggest that the intracellular calcium concentrations that are measured under basal and TRH-stimulated conditions are sufficient to allow the maximal activity of phospholipase C which can be obtained under these two experimental conditions.
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Dihydropyridine-Sensitive Calcium Channel Activity Related to Prolactin, Growth Hormone, and Luteinizing Hormone Release from Anterior Pituitary Cells in Culture: Interactions with Somatostatin, Dopamine, and Estrogens*
Sophia V. Drouva,E. Rerat,Claire Bihoreau,Eliane Laplante,R. Rasolonjanahary,Hubert Clauser,Claude Kordon +6 more
TL;DR: DHP-sensitive voltage-dependent calcium channels of the L type present on different pituitary cells are not equally susceptible to BAYK activation under steady state basal conditions, indicating that their spontaneous activity and/or distribution vary according to the cell type; their activity is modulated by sex steroids.
Journal ArticleDOI
Psycholeine, a natural alkaloid extracted from Psychotria oleoides, acts as a weak antagonist of somatostatin
TL;DR: The data suggest that psycholeine has antagonistic properties at the SRIF receptor, and Quadrigemine C, a precursor of psycholesoleine, has a similar action.