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Academic literature on the topic 'Urotensinergic system'
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Journal articles on the topic "Urotensinergic system"
Muñoz-Sánchez, M. Á., A. Rodríguez-Rodríguez, J. J. Egea-Guerrero, E. Gordillo-Escobar, Á. Vilches-Arenas, A. Carrillo-Vico, J. M. Guerrero, and F. Murillo-Cabezas. "Urotensinergic system genes in experimental subarachnoid hemorrhage." Medicina Intensiva (English Edition) 41, no. 8 (November 2017): 468–74. http://dx.doi.org/10.1016/j.medine.2016.10.013.
Full textMuñoz-Sánchez, M. Á., A. Rodríguez-Rodríguez, J. J. Egea-Guerrero, E. Gordillo-Escobar, Á. Vilches-Arenas, A. Carrillo-Vico, J. M. Guerrero, and F. Murillo-Cabezas. "Urotensinergic system genes in experimental subarachnoid hemorrhage." Medicina Intensiva 41, no. 8 (November 2017): 468–74. http://dx.doi.org/10.1016/j.medin.2016.10.013.
Full textNassour, Hassan, Mustapha Iddir, and David Chatenet. "Towards Targeting the Urotensinergic System: Overview and Challenges." Trends in Pharmacological Sciences 40, no. 10 (October 2019): 725–34. http://dx.doi.org/10.1016/j.tips.2019.08.005.
Full textBillard, Etienne, Terence E. Hébert, and David Chatenet. "Discovery of New Allosteric Modulators of the Urotensinergic System through Substitution of the Urotensin II-Related Peptide (URP) Phenylalanine Residue." Journal of Medicinal Chemistry 61, no. 19 (September 5, 2018): 8707–16. http://dx.doi.org/10.1021/acs.jmedchem.8b00789.
Full textClavier, Thomas, Alexandre Mutel, Laurence Desrues, Antoine Lefevre-Scelles, Gioia Gastaldi, Mohamad El Amki, Martine Dubois, et al. "Association between vasoactive peptide urotensin II in plasma and cerebral vasospasm after aneurysmal subarachnoid hemorrhage: a potential therapeutic target." Journal of Neurosurgery 131, no. 4 (October 2019): 1278–88. http://dx.doi.org/10.3171/2018.4.jns172313.
Full textChatenet, David, Thi-Tuyet M. Nguyen, Myriam Létourneau, and Alain Fournier. "Update on the urotensinergic system: new trends in receptor localization, activation, and drug design." Frontiers in Endocrinology 3 (2013). http://dx.doi.org/10.3389/fendo.2012.00174.
Full textDissertations / Theses on the topic "Urotensinergic system"
Douchez, Antoine. "Synthèse et utilisation de benzotriazepinones comme modulateur du système urotensinergique." Thèse, 2018. http://hdl.handle.net/1866/20754.
Full textDufour-Gallant, Julien. "Synthèse en phase solide de pyrrolo[3,2-e][1,4]diazépin-2-ones modulateurs du système urotensinergétique." Thèse, 2016. http://hdl.handle.net/1866/18417.
Full textThe pyrrolodiazepinones have interesting biological activities on various biological receptors, which makes them a prime target for developing new biologically active small molecules. A methodology in solution had been developed for synthesizing pyrrolo[3,2-e][1,4]diazepin-2-ones, which utilized the Pictet-Spengler condensation as the key reaction to form the diazepinone ring. Pyrrolo[3,2-e][1,4]diazepin-2-ones were found to mimic an inverse γ-turn conformation by X-ray crystallographic analysis. The methodology was subsequently implemented on three types of support: Merrifield resin, Wang resin and the soluble TAP support. The urotensinergic system plays a role in certain diseases of the cardiovascular system, such as hypertension, heart failure and atherosclerosis. The urotensinergic system is expressed in the circulatory system, excretory and central nervous systems and includes the endogenous ligands urotensin II (UII) and urotensin II-related peptide (URP), and the urotensin receptor UT. The ligands UII and human URP are composed of the respective amino acid sequences: H-Glu-Thr-Pro-Asp-c[Cys-Phe-Trp-Lys-Tyr-Cys]-Val-OH and H-Ala-c[Cys-Phe-Lys-Tyr-Trp-Cys]-Val-OH. The peptide UII is the most potent vasoconstrictor known to date. The two peptides have different biological effects and may exhibit distinct roles in certain diseases. Their common Trp-Lys-Tyr sequence is believed to play an important role in the activity of UII and URP, and has been suggested to adopt an inverse γ-turn conformation. Notably, the laboratory of Professor David Chatenet developed the UT receptor antagonist peptide urocontrin by replacing the Trp residue by biphenylalanine (Bip) in URP. A library of pyrrolo[3,2-e][1,4]diazepin-2-one analogs was thus designed to mimic the inverse γ-turn sequence and targeted against UT. The pyrrolo[3,2-e][1,4]diazepin-2-one library was designed based on the Trp-Lys-Tyr sequence of UII and URP, and Trp-Lys-Bip sequence of urocontrin. The synthesis of the pyrrolo[3,2-e][1,4]diazepin-2-one library was achieved on Wang resin. The side chain of Tyr was mimicked using tyramine, Lys and Orn were used as the basic amino acid component, and the side chain of Trp was replicated using biphenyl (as in urocontrin) 1-naphthyl and 2-naphthyl groups that were introduced by employing their respective aldehydes in a Pictet-Spengler reaction, which furnished unsaturated and saturated S- and R-pyrrolo[3,2-e][1,4]diazepin-2-ones. Evaluation of the biological activity of the pyrrolo[3,2-e][1,4]diazepin-2-ones on the UT receptor was performed in vitro and ex vivo. Tests in vitro measured binding in CHO-cells which expressed UT by employing hUII-125I as radiolabeled control. In rat aorta, ex vivo tests measured capacity to induce contraction, or modulate the contractions induced by hUII and URP. Certain R-pyrrolo[3,2-e][1,4]diazepin-2-ones caused an up to 50% reduction of the radioactive signal of hUII-125I. Pyrrolo[3,2-e][1,4]diazepin-2-ones exhibited little activity ex vivo; however, they modulated contractions induced by hUII and URP. For example, the saturated R-analog possessing lysine and a biphenyl side chain inhibited completely hUII-induced contractions of the aorta at 14 µM with a pKb of 5.54 at 4 µM, without influencing URP-induced contractions. Pyrrolo[3,2-e][1,4]diazepin-2-ones were selective for the urotensinergic system and inactive on the related receptor endothelin-1. Pyrrolo[3,2-e][1,4]diazepin-2-ones represent the first small molecules that can differently modulate the biological activities of UII and URP, and offer interesting potential as tools for studying the urotensinergic system.