Search Results - "Gauer, François"

Roles of RFRP-3 in the daily and seasonal regulation of reproductive activity in female Syrian hamsters by Henningsen, Jo B, Ancel, Caroline, Mikkelsen, Jens D, Gauer, François, Simonneaux, Valérie

“…In females, reproductive activity relies on proper integration of daily and environmental changes as well as cyclic sex-steroid feedback. This study aimed at…”
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Sex differences in the photoperiodic regulation of RF-Amide related peptide (RFRP) and its receptor GPR147 in the syrian hamster by Henningsen, Jo B., Poirel, Vincent-Joseph, Mikkelsen, Jens D., Tsutsui, Kazuyoshi, Simonneaux, Valérie, Gauer, François

“…ABSTRACT RF‐(Arg‐Phe) related peptides (RFRP‐1 and ‐3) are considered to play a role in the seasonal regulation of reproduction; however, the effect of the…”
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RFRP Neurons - The Doorway to Understanding Seasonal Reproduction in Mammals by Henningsen, Jo B, Gauer, François, Simonneaux, Valérie

“…Seasonal control of reproduction is critical for the perpetuation of species living in temperate zones that display major changes in climatic environment and…”
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Thyroid hormone receptors are required for the melatonin‐dependent control of Rfrp gene expression in mice by Quignon, Clarisse, Beymer, Matthew, Gauthier, Karine, Gauer, François, Simonneaux, Valérie

“…Mammals adapt to seasons using a neuroendocrine calendar defined by the photoperiodic change in the nighttime melatonin production. Under short photoperiod,…”
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Photoneural Regulation of Rat Pineal Hydroxyindole-O-Methyltransferase (HIOMT) Messenger Ribonucleic Acid Expression: An Analysis of Its Complex Relationship with HIOMT Activity by Ribelayga, Christophe, Gauer, François, Calgari, Christiane, Pevet, Paul, Simonneaux, Valerie

“…Abstract In the pineal gland, synthesis of melatonin requires O-methylation catalyzed by hydroxyindole-O-methyltransferase (HIOMT; EC 2.1.1.4). We investigated…”
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Melatonin induces Cry1 expression in the pars tuberalis of the rat by Dardente, Hugues, Menet, Jérôme S., Poirel, Vincent-Joseph, Streicher, Dominique, Gauer, François, Vivien-Roels, Berthe, Klosen, Paul, Pévet, Paul, Masson-Pévet, Mireille

“…In mammals, interacting transcriptional/post-translational feedback loops involving ‘clock genes’ and their protein products control circadian organisation…”
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Kisspeptins and RFRP-3 Act in Concert to Synchronize Rodent Reproduction with Seasons by Simonneaux, Valérie, Ancel, Caroline, Poirel, Vincent Joseph, Gauer, François

“…Seasonal mammals use the photoperiodic variation in the nocturnal production of the pineal hormone melatonin to synchronize their reproductive activity with…”
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Circadian regulation of hydroxyindole- O-methyltransferase mRNA levels in rat pineal and retina by Gauer, François, Craft, Cheryl M.

“…Hydroxyindole- O-methyltransferase (HIOMT, EC 2.1.1.4) catalyzes the methylation of acetylserotonin to complete the synthesis of melatonin in the pineal and…”
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Endogenous melatonin provides an effective circadian message to both the suprachiasmatic nuclei and the pars tuberalis of the rat by Agez, Laurence, Laurent, Virginie, Guerrero, Hilda Y., Pévet, Paul, Masson-Pévet, Mireille, Gauer, François

“…:  The suprachiasmatic nuclei (SCN) distribute the circadian neural message to the pineal gland which transforms it into a humoral circadian message, the…”
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Photoperiodic Control of the Rat Pineal Arylalkylamine-N-Acetyltransferase and Hydroxyindole-O-Methyltransferase Gene Expression and Its Effect on Melatonin Synthesis by Ribelayga, Christophe, Garidou, Marie-Laure, Malan, André, Gauer, François, Calgari, Christiane, Pévet, Paul, Simonneaux, Valérie

“…Photoperiodic changes of pineal melatonin (MEL) profile are accompanied by parallel changes of arylalkylamine-N-acetyltransferase (AA-NAT) activity. In the…”
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Daily rhythms of melatonin binding sites in the rat pars tuberalis and suprachiasmatic nuclei; evidence for a regulation of melatonin receptors by melatonin itself by Gauer, F, Masson-Pévet, M, Skene, D J, Vivien-Roels, B, Pévet, P

“…Using quantitative autoradiography, the density of melatonin binding sites has been measured in the rat pars tuberalis (PT) and suprachiasmatic nuclei (SCN)…”
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Vasoconstrictor Effects of Various Melatonin Analogs on the Rat Tail Artery in the Presence of Phenylephrine by Bucher, Bernard, Gauer, François, Pévet, Paul, Masson-Pévet, Mireille

“…We performed a pharmacologic analysis of the increase in perfusion pressure induced by melatonin and related analogues in the perfused rat tail artery…”
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Seasonality and melatonin receptors in the pars tuberalis in some long day breeders by Masson-Pévet, M, Gauer, F

“…The density of high-affinity melatonin receptors in the pars tuberalis of different long day breeders exhibits a seasonal variation, with high values in…”
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MT1 melatonin receptor mRNA expression exhibits a circadian variation in the rat suprachiasmatic nuclei by Poirel, Vincent-Joseph, Masson-Pévet, Mireille, Pevét, Paul, Gauer, François

“…The aim of the present study was to investigate the daily regulation of both MT1 and MT2 melatonin receptor subtype mRNA expression in the rat SCN in order to…”
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Daily and photoperiodic 2- 125I-melatonin binding changes in the pars tuberalis of the Syrian hamster (Mesocricetus auratus): Effect of constant light exposure and pinealectomy by Recio, Joaquín, Gauer, François, Schuster, Carole, Pévet, Paul, Masson-Pévef, Mireille

“…: Using quantitative autoradiography, 2125I‐melatonin binding was investigated throughout the light/dark cycle in the pars tuberalis (PT) of the pituitary of…”
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MT1 melatonin receptor mRNA tissular localization by PCR amplification by Poirel, Vincent-Joseph, Cailotto, Cathy, Streicher, Dominique, Pévet, Paul, Masson-Pévet, Mireille, Gauer, François

“…The pineal gland transduces photoperiodic informations to the neuroendocrine axis through the nocturnally melatonin secretion. This hormonal message plays a…”
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Pineal arylalkylamine N-acetyltransferase gene expression is highly stimulated at night in the diurnal rodent, Arvicanthis ansorgei by Garidou, Marie-Laure, Gauer, François, Vivien-Roels, Berthe, Sicard, Bruno, Pévet, Paul, Simonneaux, Valérie

“…The different mechanisms underlying the control of diurnal vs. nocturnal activity are still unknown. Regarding the nocturnal synthesis of the pineal hormone,…”
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Cloning experiments and developmental expression of both melatonin receptor Mel1A mRNA and melatonin binding sites in the Syrian hamster suprachiasmatic nuclei by GAUER, F, SCHUSTER, C, POIREL, V.-J, PEVET, P, MASSON-PEVET, M

“…The suprachiasmatic nuclei (SCN) are implicated in the control of circadian biological rhythms, and especially the melatonin nocturnal synthesis. In numerous…”
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Melatonin affects nuclear orphean receptors mRNA in the rat suprachiasmatic nuclei by Agez, Laurence, Laurent, Virginie, Pevet, Paul, Masson-Pevet, Mireille, Gauer, François

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Daily variations in melatonin receptor density of rat pars tuberalis and suprachiasmatic nuclei are distinctly regulated by Gauer, F, Masson-Pevet, M, Stehle, J, Pevet, P

“…Suprachiasmatic nuclei (SCN) and pars tuberalis (PT) are two structures in the rat exhibiting high affinity receptors for melatonin. Melatonin receptor density…”
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