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Academic literature on the topic 'Oestrogènes – Récepteurs'
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Journal articles on the topic "Oestrogènes – Récepteurs"
Bouchard, B. "Récepteurs des oestrogènes et différenciation sexuelle." médecine/sciences 16, no. 5 (2000): 705. http://dx.doi.org/10.4267/10608/1717.
Full textDelalande, C., K. Hamden, D. Silandre, A. El Feki, and S. Carreau. "P2-167 - Effets du vieillissement et des régimes hypocaloriques sur l’expression des gènes de l’aromatase et des récepteurs aux oestrogènes dans le testicule du rat." Annales d'Endocrinologie 67, no. 5 (October 2006): 535. http://dx.doi.org/10.1016/s0003-4266(06)72998-5.
Full textSmati-Grangeon, S., B. Tramunt, A. Polizzi, M. Régnier, H. Guillou, P. Gourdy, and A. Montagner. "Influence du genre sur l’évolution des stéatohépatites métaboliques : rôle hépatocytaire du récepteur aux oestrogènes ER(alpha)." Nutrition Clinique et Métabolisme 33, no. 1 (March 2019): 28–29. http://dx.doi.org/10.1016/j.nupar.2019.01.268.
Full textLE GUEVEL, R., F. PETIT, P. LE GOFF, Y. VALOTAIRE, and F. PAKDEL. "Influence du cadmium (Cd++) sur l'activité biologique du récepteur des oestrogènes de la truite arc-en-ciel (Oncorhynchus mykiss)." Bulletin Français de la Pêche et de la Pisciculture, no. 350-351 (1998): 585–95. http://dx.doi.org/10.1051/kmae:1998027.
Full textGuillaume, Maeva. "L’activation sélective du récepteur des oestrogènes ERα hépatique par le tamoxifène prévient la stéatose, l’insulino-résistance et l’obésité via la sécrétion de l’hépatokine GDF15." Diabetes & Metabolism 43, no. 2 (March 2017): A29. http://dx.doi.org/10.1016/s1262-3636(17)30187-8.
Full textMETIVIER, R., F. PETIT, Y. VALOTAIRE, and F. PAKDEL. "Reconstitution d'une unité transcriptionnelle à partir du promoteur du gène du récepteur aux oestrogènes de truite arc-en-ciel dans la levure Saccharomyces cerevisiae." Bulletin Français de la Pêche et de la Pisciculture, no. 350-351 (1998): 609–21. http://dx.doi.org/10.1051/kmae:1998029.
Full textDissertations / Theses on the topic "Oestrogènes – Récepteurs"
Bourdoncle, Anne. "Caractérisation biophysique des interactions des récepteurs des oestrogènes humains." Montpellier 1, 2004. http://www.theses.fr/2004MON13522.
Full textValéra, Marie-Cécile. "Étude de l'effet des oestrogènes sur la fonction plaquettaire : rôle des récepteurs [alpha] et [béta] des oestrogènes." Toulouse 3, 2009. http://www.theses.fr/2009TOU30327.
Full textAlthough estrogens are recognized to favour a deleterious effect on the venous thrombosis risk and a preventive action on the development of arterial atheroma, their effect on platelet functions in vivo remains unclear. The main aim of this work was to evaluate the impact of a chronic treatment of oestradiol (E2) on platelet functions in mouse. Platelets from E2-treated mice showed a marked decrease in their responsiveness ex-vivo compared to non-treated mice. Accordingly, E2 treatment increased tail bleeding time and elicited an impressive resistance to thromboembolism following injection of an epinephrin-collagen mix. Haematopoietic transgenic chimera mice demonstrated that E2 action on bleeding time and thromboembolism resistance was mediated by the haematopoietic ER alpha but not ER béta and that ER alpha activation function-1 was dispensable. Altogether, we demonstrate that E2 can elicit an antiaggregant action in an ER alpha-dependent, activation function-1-independent manner, opening the way for new potential strategies for antithrombotic and vasculoprotective therapies
Pillon, Arnaud. "Ligands environnementaux des récepteurs aux oestrogènes : développement d'outils de biosurveillance." Montpellier 1, 2004. http://www.theses.fr/2004MON13514.
Full textMargeat, Emmanuel. "Energétique et dynamique structurale des interactions des récepteurs des oestrogènes humains." Montpellier 1, 2001. http://www.theses.fr/2001MON13516.
Full textCalligé, Mathilde. "Mécanismes de dégradation du récepteur des oestrogènes alpha." Toulouse 3, 2004. http://www.theses.fr/2004TOU30087.
Full textEstradiol (E2) regulates gene transcription through of pathway events initiated by the binding of the estrogen receptor a (ERa) hormone complex to its cognate DNA target. This work shows that two estrogen antagonists, the partial antagonist the tamoxifen (OH-Tam) and the pure antagonist the ICI, exhert their antagonist activity through different pathways. The ERa complexed with OH-Tam was able to remodelate chromatin on the pS2/TFF1 promoter without transcription-induction. In contrast, ICI provoked a rapid relocation of ERa complex to an insoluble nuclear fraction where it is rapidly degraded. We demonstrated that the COP9 signalosome (CSN) is involved in the proteasome-dependant degradation of ERa complexed to E2 and to ICI. However, degradation of ERa complexed to E2 needs its nuclear export, whereas the complex ERa-ICI is degraded in the nucleus. Inhibition of the kinase activity associated with the CSN blocks ERa degradation and prevented pS2/TFF1 gene transcription by blocking ERa binding to pS2/TFF1 promoter. Our results show that CSN is involved in ligand-dependant ERa degradation by the proteasome and that the ERa degradation is not directly involved in its transcriptional activity
Antal, Maria Cristina. "Analyse du rôle des récepteurs des oestrogènes α et β chez la souris." Université Louis Pasteur (Strasbourg) (1971-2008), 2007. https://publication-theses.unistra.fr/restreint/theses_doctorat/2007/ANTAL_Maria_Cristina_2007.pdf.
Full textBasset, Céline. "Api5, un nouveau co-facteur du récepteur aux oestrogènes ERα impliqué dans la progression tumorale des carcinomes mammaires." Toulouse 3, 2014. http://thesesups.ups-tlse.fr/2314/.
Full textNew prognostic markers and molecular targets are currently developing and represent new hopes concerning patient's management and target therapies in breast cancer. Estrogen receptor is known for a long time to be one of the major prognostic markers and is with estrogen the basic target for therapy. Co-regulators of estrogen receptor are often misexpressed. Rather than playing a causal role in the genesis of cancer they provide the potential for amplification of temporal disease progression. They are also able to counteract the biological activities of therapeutic drugs. In consequence, a greater understanding of these co-regulators master genes should prove to be beneficial to the diagnosis and therapy of cancer. Moreover, these co-regulators are upstream the signaling pathway of many transcriptional factors such as ERa. Consequently, inhibition of one oncogenic co-activator could simultaneously silence a cadre of downstream genes, which, together, are responsible for the accelerated growth of the oncogenic cell and could prevent acquired therapeutic resistance. We present in this work a new co-regulator of estrogen receptor: Api5, which is known as an anti-apoptotic protein. We explored Api5 expression in breast cancer by a prospective immunohistochemical study and showed that the loss of Api5 was associated with bad prognosis factor and that it co-localized with ERa in breast carcinomas. We also showed that its presence was necessary for tumor growth. We observed that Api5 regulates ERa signaling on downstream target genes on ERE and AP1sites. We also observed that Api5 facilitates ERa recruitment onto its target promoters. Finally we demonstrated that Api5 LXXLL domain is necessary for its interaction with ERa and we showed a direct interaction between Api5 and the ERa DNA binding domain (DBD). This is the first study that describes Api5 expression by immunohistochemistry in tumors and that demonstrates the functional and physical relationship connecting Api5 to ERa suggesting Api5 as a major cofactor of ERa signalization
Poidatz, Dorothée. "Caractérisation et rôles du récepteur apparenté aux récepteurs des oestrogènes-γ (ERRγ) dans le placenta humain normal et pathologique." Thesis, Versailles-St Quentin en Yvelines, 2015. http://www.theses.fr/2015VERS037V/document.
Full textHuman placenta is a vital organ for pregnancy support and fetal development. The chorionic villi is the structural and functional unit of the placenta and is mainly constituted by trophoblastic cells. The trophoblast differentiate in villous endocrine and extra-villous invasive trophoblast. Placental development and its numerous functions require the availability of high energy. Placental energetic metabolism control is partially mediated by the regulation of mitochondrial activity.Mitochondria are key organelles of the energetic metabolism. However, mitochondria are involved in numerous other cellular functions such as apoptosis and steroid hormone biosynthesis. Moreover, recent studies suggest that mitochondria are involved in cell differentiation.Estrogen related receptor-γ (ERRγ) is a transcriptional factor implicated in the control of energetic metabolism. Preliminary studies showed that ERRγ is highly expressed in human placenta.In this work, we decided to study ERRγ implication in human placental development.In a first part, we characterized ERRγ expression in trophoblast from first and third trimester human placentas. We showed that ERRγ expression i) increased during pregnancy and ii) was higher in villous than extra-villous trophoblasts.In a second part, we showed that villous trophoblast differentiation was associated with modifications of energetic metabolism and mitochondrial content. Moreover, we clearly demonstrated that ERRγ positively controled villous differentiation by the modulation of mitochondrial functions.In a last part, we showed that ERRγ was less expressed in placentas from intra-uterine growth restriction as compared to non-pathological placentas. Moreover, this down-regulation was associated with a decrease of mitochondrial content.This work thus showed, for the first time, that ERRγ and mitochondria played a key role in placental development
Rey, Jean-Marc. "Physiopathologie moléculaire des récepteurs des oestrogènes alpha et béta dans les tissus gynécologiques." Montpellier 1, 1999. http://www.theses.fr/1999MON1T025.
Full textCypriani, Benoit. "Effet de l'oestradiol et des anti-oestrogènes sur la biosynthèse de cholestérol par des lignées de cellules tumorales : relation avec la présence de récepteurs aux oestrogènes et de sites de liaison aux anti-oestrogènes." Montpellier 2, 1988. http://www.theses.fr/1988MON20198.
Full textBooks on the topic "Oestrogènes – Récepteurs"
Essai n° 493 : Ligne directrice axée sur la performance pour les essais in vitro faisant appel au récepteur d'oestrogène recombinant humain (hrER) pour la détection des substances ayant une affinité de liaison avec les récepteurs des oestrogènes. OECD, 2015. http://dx.doi.org/10.1787/9789264242630-fr.
Full textEssai n° 455: Ligne directrice axée sur la performance pour les essais in vitro de transactivation par transfection stable visant la détection des substances agonistes et antagonistes des récepteurs des oestrogènes. OECD, 2016. http://dx.doi.org/10.1787/9789264264632-fr.
Full textEssai n° 455: Ligne directrice axée sur la performance pour les essais in vitro de transactivation par transfection stable visant la détection des substances agonistes et antagonistes des récepteurs des oestrogènes. OECD, 2015. http://dx.doi.org/10.1787/9789264243071-fr.
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