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Academic literature on the topic 'Récepteurs (AT1 et AT2) de l'angiotensine II'
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Journal articles on the topic "Récepteurs (AT1 et AT2) de l'angiotensine II"
Auzan, Colette, and Éric Clauser. "Structure et fonctions des récepteurs AT1 de l'angiotensine II au cours de l'évolution." Journal de la Société de Biologie 203, no. 4 (2009): 295–302. http://dx.doi.org/10.1051/jbio/2009033.
Full textDissertations / Theses on the topic "Récepteurs (AT1 et AT2) de l'angiotensine II"
Meulon, Emmanuelle. "Conception et synthèse de ligands potentiels des récepteurs AT1 et AT2 de l'angiotensine II." Lille 1, 2000. https://pepite-depot.univ-lille.fr/RESTREINT/Th_Num/2000/50376-2000-156.pdf.
Full textFoulquier, Sébastien. "Récepteurs AT1-AT2 de l'angiotensine II et propriétés particulières des antagonistes AT1 sur la circulation cérébrale chez le rat." Thesis, Université de Lorraine, 2012. http://www.theses.fr/2012LORR0002.
Full textThe Renin Angiotensin System plays a major role in cerebral circulation. AT1 receptor blockers (ARBs) afford protection against cerebrovascular complications that go beyond that to be expected from their blood pressure lowering action. Several mechanisms could explain such beneficial effects. Firstly, by blocking AT1 receptors, ARBs promote AT2 receptor stimulation by angiotensin II. The beneficial effect related to stimulation of AT2 receptors (vasodilation) counterbalances the deleterious actions of AT1 receptors stimulation. Changes in this ratio may then alter cerebral circulation. We demonstrated that the AT1- AT2 ratio is modified at the cerebrovascular level during high salt intake, which is a risk factor for stroke. The AT2-mediated vasodilation of pial arterioles is abolished. Secondly, some ARBs act as partial agonists of PPAR-gamma. Such an activity, which has been demonstrated to protect extracerebral vessels, could also be beneficial for cerebral circulation. Our results showed that PPAR-gamma activation improves ARB effects on cerebral circulation (arteriolar diameter, angiotensin II reactivity). The underlying mechanisms could imply functional regulation of AT1-AT2 receptors without any change in expression status. AT2 receptor stimulation and PPAR-gamma activity are two special properties of ARBs. These properties could contribute to the cerebroprotection induced by ARBs, beyond the AT1-receptor blockade. Development of new molecules with AT1-receptor blockade and PPAR-gamma activity could take part into the future therapeutic management of hypertension, providing a better cerebrovascular protection
Adamy, Christophe. "Récepteurs de l'angiotensine II : modulation de leur expression et fonctions du sous-type AT2." Paris 6, 2002. http://www.theses.fr/2002PA066001.
Full textBellot, Morgane. "Caractérisation des dimères de récepteurs à l'angiotensine II AT1 et a2C-adrénergiques et conséquences fonctionnelles." Toulouse 3, 2013. http://thesesups.ups-tlse.fr/2185/.
Full textMechanisms of norepinephrine (NE) secretion via angiotensin (AT1) and alpha2-adrenergic (alpha2A/C-AR) receptors remains unknown. So we hypothesized the involvement of a AT1/alpha2C dimer. Our results show that these two receptors are able to interact directly and binding of angiotensin II (Ang II) or NA stabilize different conformations of the dimer. In addition, under conditions mimicking arterial hypertension (HTN; costimulation NA+AngII), AT1/alpha2C dimer adopts a new conformation. Using a new technique allowing a specific measure of intracellular signaling pathways activation only induced by AT1/alpha2C dimer, we demonstrated that costimulation induces a new signaling pathway involving the Galphas / PKA pathway. Finally, we studied the physiological relevance of this new entity in vivo by exploring the SNS activity in mice by microneurography. Surprisingly, co-injection AngII + NA causes an increased SNS activity, compared to the injection of AngII alone, suggesting a role of AT1/alpha2C dimer in the control of controlling SNS activity. In conclusion, all this work show for the first time the existence of the AT1/alpha2C dimer and especially the creation of a new pharmacological entity in HTN condition. In the longer term, AT1/alpha2C dimer may represent a new pharmacological entity that originally modulate the sympathetic tone and may be a new drug target in particular the treatment of HTN
Le, Bourdonnec Bertrand. "Conception et synthèse de nouveaux ligands non peptidiques des récepteurs AT1 de l'angiotensine II." Lille 1, 1997. http://www.theses.fr/1997LIL10115.
Full textBonnet, Fabrice. "Expression rénale de la néphrine et des récepteurs de l'angiotensine II dans un modèle expérimental de néphropathie diabétique : effets d'un traitement par un antagoniste du récepteur AT1 de l'angiotensine II." Lyon 1, 2004. http://www.theses.fr/2004LYO10068.
Full textGroblewski, Thierry. "Le récepteur AT1 de l'angiotensine II : contribution de la pharmacologie moléculaire à l'étude de sa structure et de son mécanisme d'activation." Montpellier 1, 1997. http://www.theses.fr/1997MON1T009.
Full textSalfati, Katy. "Effets comparés des inhibiteurs de l'enzyme de conversion et des antagonistes des récepteurs AT1 de l'angiotensine II sur l'insuffisance cardiaque." Paris 5, 2001. http://www.theses.fr/2001PA05P038.
Full textBiset, Thierry. "Blocage des récepteurs AT1 de l'angiotensine II par le losartan (DUP 753) : effets sur la motricité et la trophicité de la paroi artérielle." Paris 5, 1994. http://www.theses.fr/1994PA05P206.
Full textShum, Michaël. "Rôles du récepteur AT2 de l'angiotensine II sur l'adipogenèse et la résistance à l'insuline de l'adipocyte à l'animal." Mémoire, Université de Sherbrooke, 2012. http://hdl.handle.net/11143/5561.
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