Výsledky vyhledávání - "Nadine Le Belle"

Development of real-time RT-PCR assays for eel gonadotropins and their application to the comparison of in vivo and in vitro effects of sex steroids

Autor: Sylvie Dufour, Finn-Arne Weltzien, Nadine Le Belle, Salima Aroua

Publikováno v: General and Comparative Endocrinology. 153:333-343

Gonadotropins, luteinizing hormone (LH) and follicle-stimulating hormone (FSH), are key factors in the brain-pituitary-gonad axis and understanding their regulation remains essential for future management of eel reproduction. In this regard, we devel

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c26bb10d7e308d7ec1a27552aa88eeba
https://doi.org/10.1016/j.ygcen.2007.02.027

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Dopamine Inhibits Luteinizing Hormone Synthesis and Release in the Juvenile European Eel: A Neuroendocrine Lock for the Onset of Puberty1

Autor: Nadine Le Belle, Catherine Pasqualini, Yonathan Zohar, B. Vidal, Philippe Vernier, M. Claire H. Holland, Miskal Sbaihi, Sylvie Dufour

Publikováno v: Biology of Reproduction. 71:1491-1500

In various adult teleost fishes, LH ovulatory peak is under a dual neurohormonal control that is stimulatory by GnRH and inhibitory by dopamine (DA). We investigated whether DA could also be involved in the inhibitory control of LH at earlier steps o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::970a7cba6a66e2f5a0f9bb60fd0b856c
https://doi.org/10.1095/biolreprod.104.030627

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Un contre-pouvoir au contrôle de la reproduction par la GnRH chez les Poissons Téléostéens : l’inhibition dopaminergique. Rôle ancestral et conservation différentielle chez les Vertébrés ?

Autor: Nadine Le Belle, Sylvie Dufour, Yonathan Zohar, Catherine Pasqualini, Philippe Vernier, B. Vidal, Miskal Sbaihi, Finn-Arne Weltzien

Publikováno v: Journal de la Société de Biologie. 198:61-67

Chez les Mammiferes, le controle neurohormonal des cellules gonadotropes hypophysaires est assure par la gonadoliberine, GnRH. De nombreux travaux menes chez les Poissons Teleosteens montrent que ce controle unique de type stimulateur n’est pas une

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0fb188e3e347d389f17157de24b62428
https://doi.org/10.1051/jbio/2004198010061

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Detection of the anti-androgenic effect of endocrine disrupting environmental contaminants using in vivo and in vitro assays in the three-spined stickleback

Autor: Tom G. Pottinger, Steve Morris, Ian Mayer, Ioanna Katsiadaki, Alexander P. Scott, Nadine Le Belle, Cécile Jolly, Sylvie Dufour

Publikováno v: Aquatic Toxicology
Aquatic Toxicology, 2009, 92 (4), pp.228-239. ⟨10.1016/j.aquatox.2009.02.006⟩
Aquatic Toxicology, Elsevier, 2009, 92 (4), pp.228-239. ⟨10.1016/j.aquatox.2009.02.006⟩

International audience; We have previously developed a novel in vitro assay that utilises cultures of primed female stickleback kidney cells for the screening of potential androgenic and anti-androgenic environmental contaminants. Stickleback kidney

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ac33c41d4693bc80627db532f14e9b4b
https://hal.science/hal-00383855

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Androgen-dependent stimulation of brain dopaminergic systems in the female European eel (Anguilla anguilla)

Autor: Finn-Arne Weltzien, Olivier Kah, Philippe Vernier, Catherine Pasqualini, Nadine Le Belle, B. Vidal, Sylvie Dufour, Marie-Emilie Sébert

Publikováno v: Endocrinology
Endocrinology, 2006, 147 (6), pp.2964-73. ⟨10.1210/en.2005-1477⟩
Endocrinology, Endocrine Society, 2006, 147 (6), pp.2964-73. ⟨10.1210/en.2005-1477⟩
Endocrinology, Endocrine Society, 2006, 147, pp.2964-73. ⟨10.1210/en.2005-1477⟩

International audience; Dopamine (DA), a neurotransmitter present in all vertebrates, is involved in processes such as motor function, learning and behavior, sensory activities, and neuroendocrine control of pituitary hormone release. In the female e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1c22d2629968c338a59719c6fe853343
https://hal.science/hal-00154634

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Development of a stickleback kidney cell culture assay for the screening of androgenic and anti-androgenic endocrine disrupters

Autor: Nadine Le Belle, Cécile Jolly, Ioanna Katsiadaki, Ian Mayer, Sylvie Dufour

Publikováno v: Aquatic toxicology (Amsterdam, Netherlands). 79(2)

Issues raised by the presence in the environment of chemicals able to mimic or antagonize the action of androgenic hormones are of growing concern. Here we report the development of a novel in vitro test for the screening of (anti-)androgenic chemica

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a6ff1c0fa848f49b26e32405e7c3cb1
https://pubmed.ncbi.nlm.nih.gov/16843539

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Differential regulation of luteinizing hormone and follicle-stimulating hormone expression during ovarian development and under sexual steroid feedback in the European eel

Autor: Monika Schmitz, Salima Aroua, Pierre Elie, Nadine Le Belle, Sylvie Dufour, B. Vidal

Publikováno v: Neuroendocrinology
Neuroendocrinology, Karger, 2005, 81 (2), pp.107-119

Pituitary gonadotropins, luteinizing hormone (LH) and follicle-stimulating hormone (FSH) are, in teleosts as in mammals, under the control of hypothalamic factors and steroid feedbacks. In teleosts, feedback regulations largely vary depending on spec

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a77e5fe161e8992651ce5d2bc2e0dd27
https://hal.inrae.fr/hal-02586550

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Reproductive Endocrinology of the European Eel, Anguilla anguilla

Autor: Sylvie Dufour, Bernadette Vidal, Nadine Le Belle, Miskal Sbaihi, Elisabeth Burzawa-Gerard

Publikováno v: Eel Biology ISBN: 9784431659099

The mystery of the reproduction of the European eel, in which “seminal liquor nor eggs could never be observed;” was questioned as early as Greek antiquity, by Aristotle, in his writings on “Animal History” and “Animal Generation.” This q

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0e230daa64db30348cffda47680ba63a
https://doi.org/10.1007/978-4-431-65907-5_25

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Pituitary growth hormone secretion in the turbot, a phylogenetically recent teleost, is regulated by a species-specific pattern of neuropeptides

Autor: Nadine Le Belle, Gilles Boeuf, Billy K. C. Chow, J. Marchelidon, Karine Rousseau, Sylvie Dufour, Karine Pichavant

Publikováno v: Neuroendocrinology
Neuroendocrinology, Karger, 2001, 74 (6), pp.375-85
Neuroendocrinology, 2001, 74 (6), pp.375-85

In mammals, growth hormone (GH) is under a dual hypothalamic control exerted by growth hormone-releasing hormone (GHRH) and somatostatin (SRIH). We investigated GH release in a pleuronectiform teleost, the turbot (Psetta maxima), using a serum-free p

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d7f7206b62812b5e4b6e362b832fab8
https://hal.univ-brest.fr/hal-00750439

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Cortisol selectively stimulates pituitary gonadotropin beta-subunit in a primitive teleost, Anguilla anguilla

Autor: Miskal Sbaihi, Monika Schmitz, Nadine Le Belle, Yung-Sen Huang, Karine Rousseau, Sylvie Dufour

Publikováno v: Endocrinology. 140(3)

It has been suggested that in mammals, glucocorticoids, beside their stress-related inhibitory effects on reproductive function, may also play a stimulatory role at the onset of puberty. Using the juvenile female eel as a model, we investigated the p

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bb1676c667e23891c40efaa63a64ba30
https://pubmed.ncbi.nlm.nih.gov/10067848

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