Increased ACTH and corticosterone secretion induced by different methods of paradoxical sleep deprivation

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dc.contributor.authorSuchecki, Deborah [UNIFESP]
dc.contributor.authorLobo, Leticia Leite [UNIFESP]
dc.contributor.authorHipólide, Débora Cristina [UNIFESP]
dc.contributor.authorTufik, Sergio [UNIFESP]
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.date.accessioned2016-01-24T12:30:42Z
dc.date.available2016-01-24T12:30:42Z
dc.date.issued1998-12-01
dc.description.abstractThe methods used to induce paradoxical sleep (PS) deprivation are believed to be stressful. in the present study, two methods were compared in regard to their ability to activate the hypothalamic-pituitary-adrenal (HPA) axis. Animals were placed on multiple large (MLP) or small (MSP) platforms or on single large (SLP) or small (SSP) platforms and blood sampled at the end of a 4-day period of PS deprivation (experiment 1) or on Days 1 (short-term) and 1 (long-term) of PS deprivation (experiment 2). ACTH and corticosterone (CORT) levels were determined by RIA. the results of experiment 1 showed that all experimental animals presented increased ACTH response, compared to controls. CORT levels, however, were only elevated in MSP animals, suggesting increased adrenal sensitivity. Experiment 2 showed that ACTH levels of MSP animals were higher than MLP and SSP animals, and that animals placed on the multiple platform tanks showed the highest ACTH levels on Day 4 of manipulation. CORT levels were elevated in the animals kept over small platforms. and these levels where higher on Day 1 than basal and further elevated on Day 4 of PS deprivation. These results indicate that the multiple platform technique induces a distinct activation of the I-IPA axis, and that PS deprivation may act as an additional stressor.en
dc.description.affiliationUniversidade Federal de São Paulo, Dept Psychobiol, BR-04023062 São Paulo, Brazil
dc.description.affiliationUnifespUniversidade Federal de São Paulo, Dept Psychobiol, BR-04023062 São Paulo, Brazil
dc.description.sourceWeb of Science
dc.format.extent276-281
dc.identifierhttp://dx.doi.org/10.1046/j.1365-2869.1998.00122.x
dc.identifier.citationJournal of Sleep Research. Oxford: Blackwell Science Ltd, v. 7, n. 4, p. 276-281, 1998.
dc.identifier.doi10.1046/j.1365-2869.1998.00122.x
dc.identifier.issn0962-1105
dc.identifier.urihttp://repositorio.unifesp.br/handle/11600/25982
dc.identifier.wosWOS:000077283500007
dc.language.isoeng
dc.publisherBlackwell Science Ltd
dc.relation.ispartofJournal of Sleep Research
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectACTHen
dc.subjectcorticosteroneen
dc.subjectparadoxical sleep deprivationen
dc.subjecthypothalamic-pituitary-adrenal axisen
dc.subjectratsen
dc.subjectstressen
dc.titleIncreased ACTH and corticosterone secretion induced by different methods of paradoxical sleep deprivationen
dc.typeinfo:eu-repo/semantics/article
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