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dc.creatorDuhart, José Manuel-
dc.creatorBrocardo, Lucila-
dc.creatorCaldart Valle, Carlos Sebastian-
dc.creatorMarpegan, Luciano-
dc.creatorGolombek, Diego Andrés-
dc.date2018-06-12T13:16:12Z-
dc.date2018-06-12T13:16:12Z-
dc.date2017-10-30-
dc.date2018-06-05T20:14:25Z-
dc.date.accessioned2019-04-29T15:57:11Z-
dc.date.available2019-04-29T15:57:11Z-
dc.identifierDuhart, José Manuel; Brocardo, Lucila; Caldart Valle, Carlos Sebastian; Marpegan, Luciano; Golombek, Diego Andrés; Circadian Alterations in a Murine Model of Hypothalamic Glioma; Frontiers Research Foundation; Frontiers in Physiology; 8; 2017; 30-10-2017; 864-1/10-
dc.identifier1664-042X-
dc.identifierhttp://hdl.handle.net/11336/48233-
dc.identifierCONICET Digital-
dc.identifierCONICET-
dc.identifier.urihttp://rodna.bn.gov.ar:8080/jspui/handle/bnmm/306097-
dc.descriptionThe mammalian circadian system is controlled by a central oscillator located in the suprachiasmatic nuclei (SCN) of the hypothalamus, in which glia appears to play a prominent role. Gliomas originate from glial cells and are the primary brain tumors with the highest incidence and mortality. Optic pathway/hypothalamic gliomas account for 4-7% of all pediatric intracranial tumors. Given the anatomical location, which compromises both the circadian pacemaker and its photic input pathway, we decided to study whether the presence of gliomas in the hypothalamic region could alter circadian behavioral outputs. Athymic nude mice implanted with LN229 human glioma cells showed an increase in the endogenous period of the circadian clock, which was also less robust in terms of sustaining the free running period throughout 2 weeks of screening. We also found that implanted mice showed a slower resynchronization rate after an abrupt 6 h advance of the light-dark (LD) cycle, advanced phase angle, and a decreased direct effect of light in general activity (masking), indicating that hypothalamic tumors could also affect photic sensitivity of the circadian clock. Our work suggests that hypothalamic gliomas have a clear impact both on the endogenous pacemaking of the circadian system, as well as on the photic synchronization of the clock. These findings strongly suggest that the observation of altered circadian parameters in patients might be of relevance for glioma diagnosis.-
dc.descriptionFil: Duhart, José Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; Argentina. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología. Laboratorio de Cronobiología; Argentina-
dc.descriptionFil: Brocardo, Lucila. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Fisiología y Biofísica Bernardo Houssay. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Fisiología y Biofísica Bernardo Houssay; Argentina. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología. Laboratorio de Cronobiología; Argentina-
dc.descriptionFil: Caldart Valle, Carlos Sebastian. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología. Laboratorio de Cronobiología; Argentina-
dc.descriptionFil: Marpegan, Luciano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología. Laboratorio de Cronobiología; Argentina-
dc.descriptionFil: Golombek, Diego Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología. Laboratorio de Cronobiología; Argentina-
dc.formatapplication/pdf-
dc.formatapplication/pdf-
dc.formatapplication/pdf-
dc.languageeng-
dc.publisherFrontiers Research Foundation-
dc.relationinfo:eu-repo/semantics/altIdentifier/url/https://www.frontiersin.org/articles/10.3389/fphys.2017.00864/full-
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.3389/fphys.2017.00864-
dc.rightsinfo:eu-repo/semantics/openAccess-
dc.rightshttps://creativecommons.org/licenses/by/2.5/ar/-
dc.sourcereponame:CONICET Digital (CONICET)-
dc.sourceinstname:Consejo Nacional de Investigaciones Científicas y Técnicas-
dc.sourceinstacron:CONICET-
dc.subjectCIRCADIAN-
dc.subjectGLIOBLASTOMA-
dc.subjectGLIOMA-
dc.subjectSUPRACHIASMATIC-
dc.subjectOtras Ciencias Biológicas-
dc.subjectCiencias Biológicas-
dc.subjectCIENCIAS NATURALES Y EXACTAS-
dc.titleCircadian Alterations in a Murine Model of Hypothalamic Glioma-
dc.typeinfo:eu-repo/semantics/article-
dc.typeinfo:eu-repo/semantics/publishedVersion-
dc.typeinfo:ar-repo/semantics/articulo-
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