Výsledky vyhledávání - "Bernard Breton"

Disrupted sexual cycles in female grass carp (Ctenopharyngodon idella) raised in tropical conditions

Autor: F. Glasser, Brigitte Mourot, Chantal Cauty, Bernard Breton

Publikováno v: Aquaculture. 220:857-868

In the Ivory Coast, grass carp (Ctenopharyngodon idella) have been integrated in the tilapia-based polyculture in order to increase pond productivity. In the tropical conditions prevailing there, female cycles seemed disrupted. We describe oogenesis

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b802f88e4ba39c0dd4600de386868358
https://doi.org/10.1016/s0044-8486(02)00563-x

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Modified absorption of sGNRH-a following rectal and oral delivery to common carp, Cyprinus carpio L

Autor: J. Chyb, Bernard Breton, T. Mikolajczyk, Ivo Roelants, P. Epler, Frans Ollevier

Publikováno v: Aquaculture. 203:375-388

The present study compare oral and rectal delivery routes of a salmonid gonadotropin releasing hormone analogue (sGnRH-a)+dopamine D 2 -receptor antagonist, pimozide (Pim), with parenteral administration. In addition, the effect of co-administration

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::65dda9cf09512566c127a036fc5b964b
https://doi.org/10.1016/s0044-8486(01)00637-8

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Modulation of Pituitary Dopamine D1 or D2 Receptors and Secretion of Follicle Stimulating Hormone and Luteinizing Hormone During the Annual Reproductive Cycle of Female Rainbow Trout

Autor: Bernard Breton, M.-H. Marmignon, Evaristo L. Mañanós, C. Vacher, Christian Saligaut

Publikováno v: Journal of Neuroendocrinology. 12:1219-1226

The two gonadotrophins follicle stimulating hormone (FSH) and luteinizing hormone (LH) have distinct temporal expression and release profiles in fish, but little is known regarding their neuroendocrine control, especially for FSH. The present experim

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6c2fa6311e452e789b32576e74571b31
https://doi.org/10.1046/j.1365-2826.2000.00585.x

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Assessment of tissue damaging effects of mixed micellar absorption enhancers on the intestinal mucosa of common carp (Cyprinus carpio), African catfish (Clarias gariepinus) and rainbow trout (Oncorhynchus mykiss) as a consequence of enhanced intestinal absorption of sGnRH-a

Autor: Bernard Breton, P. Epler, Ivo Roelants, Frans Ollevier, Miroslawa Sokolowska-Mikolajczyk, T. Mikolajczyk, Rws Schulz

Publikováno v: Journal of Applied Ichthyology. 17:267-272

Non-ionic surfactant–polyoxyethylene sorbitan monooleate (Tween-80) and oleic acid are food and pharmaceutical ingredients for oral and parenteral delivery and generally regarded as safe (GRAS). They have the potential as an intestinal absorption e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ada80162479001f8dc93f32680893174
https://doi.org/10.1046/j.1439-0426.2001.00303.x

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Two Different Messenger RNAs for Salmon Gonadotropin-Releasing Hormone Are Expressed in Rainbow Trout (Oncorhynchus mykiss) Brain

Autor: François Ferrière, Patrick Jego, Svetlana Uzbekova, Thierry Bailhache, Bernard Breton

Publikováno v: General and Comparative Endocrinology
General and Comparative Endocrinology, Elsevier, 2001, 124, pp.321-332
General and Comparative Endocrinology, 2001, 124 (3), pp.321-332. ⟨10.1006/gcen.2001.7721⟩

International audience; Two different precursor genes encoding the decapeptide salmon GnRH (sGnRH) are present in most salmonid species. In rainbow trout, a precedent Southern blot study revealed the existence of two different sGnRH genes and, recent

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d7094cd6d0a645a55862d4f3c6aa3cb
https://doi.org/10.1006/gcen.2001.7721

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Stage-dependent and alternative splicing of sGnRH messengers in rainbow trout testis during spermatogenesis

Autor: Jean-Jacques Lareyre, Thierry Bailhache, Svetlana Uzbekova, François Ferrière, Bernard Breton, Yann Guiguen

Publikováno v: Molecular Reproduction and Development. 59:1-10

The gonadotropin releasing hor- mone (GnRH) has long been considered as a neuro- peptide involved in the control of the reproductive cycle. However, the presence of GnRH and its receptors in various tissues, including ovary and testis, suggests a rol

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::32e5d94b94ef266e0eabd855c057d93b
https://doi.org/10.1002/mrd.1000

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Induction of spermiation in common carp after enhanced intestinal uptake of sGnRH-A and Pimozide

Autor: T. Mikolajczyk, P. Epler, Ivo Roelants, Bernard Breton, J. Chyb, Frans Ollevier

Publikováno v: Journal of Fish Biology
Journal of Fish Biology, Wiley, 2000, 56, pp.1398-1407

The inherent ability of the carp Cyprinus carpio gut to absorb intact salmon gonadotropin hormone-releasing hormone analogue (sGnRH-a)+Pimozide (Pim), without loss of their bioactivity is very limited. Artificial intestinal absorption enhancement boo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::47938e516945397781270bccb022283e
https://doi.org/10.1111/j.1095-8649.2000.tb02152.x

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[Untitled]

Autor: Bernard Jalabert, Jean-François Baroiller, Bernard Breton, Yann Guiguen, Alexis Fostier, Gilles Monod, Florence Le Gac

Publikováno v: Ecotoxicology. 9:25-40

The reproductive function of fish, which is very sensitive to the variations of environmental factors, appears also to be particularly vulnerable to the presence of xenobiotics in the aquatic medium. Many physiological processes can be impaired, from

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4de961ca24e2ecb60bebea602893bfd8
https://doi.org/10.1023/a:1008960010754

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