Full metadata record
DC FieldValueLanguage
dc.creatorRoboredo, M. (Mercedes)-
dc.creatorChang, H.C.Y. (Haisul C. Y.)-
dc.creatorBarbero, R. (Roberto)-
dc.creatorRodriguez-Ortigosa, C.M. (Carlos M.)-
dc.creatorPerez-Vizcaino, F. (Francisco)-
dc.creatorMoran, M.A. (María Asunción)-
dc.creatorGarcia, M. (Mónica)-
dc.creatorBanales, J.M. (Jesús M.)-
dc.creatorCarreño, N. (N.)-
dc.creatorAlegre, F. (Félix)-
dc.creatorHerrero, J.I. (José Ignacio)-
dc.creatorQuiroga, J. (Jorge)-
dc.creatorPrieto, J. (Jesús)-
dc.creatorSangro, B. (Bruno)-
dc.identifier.citationReboredo M, Chang HC, Barbero R, Rodríguez-Ortigosa CM, Pérez-Vizcaíno F, Morán A, et al. Zolmitriptan: a novel portal hypotensive agent which synergizes with propranolol in lowering portal pressure. PLoS One. 2013;8(1):e52683es_ES
dc.description.abstractOBJECTIVE: Only a limited proportion of patients needing pharmacological control of portal hypertension are hemodynamic responders to propranolol. Here we analyzed the effects of zolmitriptan on portal pressure and its potential interaction with propranolol. METHODS: ZOLMITRIPTAN, PROPRANOLOL OR BOTH WERE TESTED IN TWO RAT MODELS OF PORTAL HYPERTENSION: common bile duct ligation (CBDL) and CCl4-induced cirrhosis. In these animals we measured different hemodynamic parameters including portal venous pressure, arterial renal flow, portal blood flow and cardiac output. We also studied the changes in superior mesenteric artery perfusion pressure and in arterial wall cAMP levels induced by zolmitriptan, propranolol or both. Moreover, we determined the effect of splanchnic sympathectomy on the response of PVP to zolmitriptan. RESULTS: In both models of portal hypertension zolmitriptan induced a dose-dependent transient descent of portal pressure accompanied by reduction of portal flow with only slight decrease in renal flow. In cirrhotic rats, splanchnic sympathectomy intensified and prolonged zolmitriptan-induced portal pressure descent. Also, propranolol caused more intense and durable portal pressure fall when combined with zolmitriptan. Mesenteric artery perfusion pressure peaked for about 1 min upon zolmitriptan administration but showed no change with propranolol. However propranolol enhanced and prolonged the elevation in mesenteric artery perfusion pressure induced by zolmitriptan. In vitro studies showed that propranolol prevented the inhibitory effects of β2-agonists on zolmitriptan-induced vasoconstriction and the combination of propranolol and zolmitriptan significantly reduced the elevation of cAMP caused by β2-agonists. CONCLUSION: Zolmitriptan reduces portal hypertension and non-selective beta-blockers can improve this effect. Combination therapy deserves consideration for patients with portal hypertension failing to respond to non-selective beta-blockers.es_ES
dc.publisherPublic Library of Sciencees_ES
dc.subjectAntihypertensive agentses_ES
dc.subjectDrug therapy, Combinationes_ES
dc.subjectDrug synergismes_ES
dc.titleZolmitriptan: a novel portal hypotensive agent which synergizes with propranolol in lowering portal pressurees_ES

Files in This Item:
531.85 kB
Adobe PDF

Statistics and impact
0 citas en
0 citas en

Items in Dadun are protected by copyright, with all rights reserved, unless otherwise indicated.