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dc.contributor.authorColombari, Eduardo-
dc.contributor.authorColombari, Debora S. A.-
dc.contributor.authorLi, Hongwei-
dc.contributor.authorShi, Peng-
dc.contributor.authorDong, Ying-
dc.contributor.authorJiang, Nan-
dc.contributor.authorRaizada, Mohan K.-
dc.contributor.authorSumners, Colin-
dc.contributor.authorMurphy, David-
dc.contributor.authorPaton, Julian F. R.-
dc.date.accessioned2014-05-20T13:46:04Z-
dc.date.accessioned2016-10-25T16:59:55Z-
dc.date.available2014-05-20T13:46:04Z-
dc.date.available2016-10-25T16:59:55Z-
dc.date.issued2010-11-01-
dc.identifierhttp://dx.doi.org/10.1161/HYPERTENSIONAHA.110.155101-
dc.identifier.citationHypertension. Philadelphia: Lippincott Williams & Wilkins, v. 56, n. 5, p. 956-U457, 2010.-
dc.identifier.issn0194-911X-
dc.identifier.urihttp://hdl.handle.net/11449/16273-
dc.identifier.urihttp://acervodigital.unesp.br/handle/11449/16273-
dc.description.abstractCentral hyperosmotic stimulation (HS) evokes increases in sympathetic nerve activity mediated by activation of angiotensin type 1 receptors in the hypothalamic paraventricular nucleus (PVN). Macrophage inhibitory migration factor (MIF) is an intracellular inhibitory regulator of angiotensin type 1 receptor-mediated actions of angiotensin II within neurons of the PVN. MIF mediates its actions via its intrinsic thiol-protein oxidoreductase activity. We demonstrate that intracerebroventricular injection of hypertonic saline into Sprague-Dawley rats elicits a significant (approximate to 112%) increase in MIF mRNA expression in the PVN. Next, we evaluated the effect of viral-mediated expression of either MIF or [C60S]-MIF (which lacks thiol-protein oxidoreductase activity) in the PVN on the sympathoexcitation evoked by HS. We used a decorticate, arterially perfused in situ preparation of male Wistar rats (60 to 80 g). HS was induced by raising perfusate osmolality from 290 to 380 milliosmoles for 40 seconds. Seven to 10 days before experiments, rats were injected bilaterally (500 nL per side) with 0.9% saline (control) or with adenoassociated virus to express MIF, [C60S]-MIF, or enhanced green fluorescent protein in the PVN. HS produced sympathoexcitation in both the 0.9% saline and enhanced green fluorescent protein groups (sympathetic nerve activity increase of +27 +/- 4% and +25 +/- 4%, respectively; P<0.05), an effect that was not observed in the MIF group (+4 +/- 5%). Conversely, the HS-induced increase in sympathetic nerve activity was potentiated in the [C60S]-MIF group (+45 +/- 6%; P<0.05). We propose that MIF acting within the PVN is a major counterregulator of HS-induced sympathoexcitation, an effect that depends on thiol-protein oxidoreductase activity. (Hypertension. 2010;56:956-963.)en
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
dc.description.sponsorshipFaculdade de Medicina ABC from Brazil-
dc.description.sponsorshipWellcome Trust-
dc.description.sponsorshipBritish Heart Foundation-
dc.description.sponsorshipNational Institutes of Health-
dc.description.sponsorshipRoyal Society-
dc.description.sponsorshipUniversity of Bristol-
dc.format.extent956-U457-
dc.language.isoeng-
dc.publisherLippincott Williams & Wilkins-
dc.sourceWeb of Science-
dc.subjecthypothalamusen
dc.subjectgene transferen
dc.subjectsympathetic nerve activityen
dc.subjectangiotensin type 1 receptorsen
dc.subjectmacrophage migration inhibitory factoren
dc.titleMacrophage Migration Inhibitory Factor in the Paraventricular Nucleus Plays a Major Role in the Sympathoexcitatory Response to Salten
dc.typeoutro-
dc.contributor.institutionUniv Bristol-
dc.contributor.institutionUniv Florida-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)-
dc.description.affiliationUniv Bristol, Sch Physiol & Pharmacol, Bristol Heart Inst, Bristol BS8 1TD, Avon, England-
dc.description.affiliationUniv Bristol, Labs Integrat Neurosci & Endocrinol, Bristol BS8 1TD, Avon, England-
dc.description.affiliationUniv Florida, Dept Physiol & Funct Genom, Gainesville, FL USA-
dc.description.affiliationSão Paulo State Univ, Fac Odontol Araraquara, Dept Fisiol & Patol, BR-14801903 Araraquara, SP, Brazil-
dc.description.affiliationUniv Fed São Paulo, Dept Fisiol, Escola Paulista Med, BR-04023060 São Paulo, Brazil-
dc.description.affiliationUnespSão Paulo State Univ, Fac Odontol Araraquara, Dept Fisiol & Patol, BR-14801903 Araraquara, SP, Brazil-
dc.description.sponsorshipIdNIH: 1R01HL-076803-
dc.description.sponsorshipIdNIH: HL33610-
dc.identifier.doi10.1161/HYPERTENSIONAHA.110.155101-
dc.identifier.wosWOS:000283240400552-
dc.rights.accessRightsAcesso aberto-
dc.relation.ispartofHypertension-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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