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Spontaneous recovery, time course, and circadian influence on habituation of the cardiovascular responses to repeated restraint stress in rats

dc.contributor.authorSantos, Carlos E. [UNESP]
dc.contributor.authorBenini, Ricardo [UNESP]
dc.contributor.authorCrestani, Carlos C. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2020-12-12T01:35:44Z
dc.date.available2020-12-12T01:35:44Z
dc.date.issued2020-10-01
dc.description.abstractWe investigated the spontaneous recovery, time course, and the influence of the time of day on the habituation of the cardiovascular responses with repeated exposure to restraint stress in male rats. Habituation of the corticosterone response to repeated restraint stress was also evaluated. The circulating corticosterone response decreased during both the stress and recovery periods of the tenth session of restraint. Habituation of the cardiovascular responses was identified as a faster return to baseline values of the heart rate (HR) and blood pressure (BP) during the recovery period of the tenth session of restraint. Habituation of the HR and BP was still observed after 10 days of discontinuation of the repeated exposure to restraint stress. However, spontaneous recovery of habituated responses was observed 20 days after the final restraint stress session. Time course analysis revealed decreased HR response during the recovery period of the third restraint session, without further reduction on the fifth, seventh, and tenth sessions. Decreased BP response was identified on the third and fifth sessions, whereas reduced tail skin temperature response was observed only on the fifth and seventh sessions. Regarding the time of day, habituation of the tachycardiac response was identified at the tenth session when repeated restraint stress was performed in the morning and night periods, but not in the afternoon. These findings provided evidence of spontaneous recovery of the habituation of cardiovascular responses to repeated restraint stress. Moreover, cardiovascular habituation was dependent on the number of trials and time of day.en
dc.description.affiliationDepartment of Drugs and Pharmaceutics Laboratory of Pharmacology School of Pharmaceutical Sciences São Paulo State University (UNESP), Rodovia Araraquara KM 01 (Campus Universitário)
dc.description.affiliationJoint UFSCar-UNESP Graduate Program in Physiological Sciences
dc.description.affiliationUnespDepartment of Drugs and Pharmaceutics Laboratory of Pharmacology School of Pharmaceutical Sciences São Paulo State University (UNESP), Rodovia Araraquara KM 01 (Campus Universitário)
dc.description.affiliationUnespJoint UFSCar-UNESP Graduate Program in Physiological Sciences
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdFAPESP: 2015/05922-9
dc.description.sponsorshipIdFAPESP: 2017/19249-0
dc.description.sponsorshipIdCNPq: 304108/2018-9
dc.description.sponsorshipIdCNPq: 305583/2015-8
dc.format.extent1495-1506
dc.identifierhttp://dx.doi.org/10.1007/s00424-020-02451-9
dc.identifier.citationPflugers Archiv European Journal of Physiology, v. 472, n. 10, p. 1495-1506, 2020.
dc.identifier.doi10.1007/s00424-020-02451-9
dc.identifier.issn1432-2013
dc.identifier.issn0031-6768
dc.identifier.scopus2-s2.0-85089748981
dc.identifier.urihttp://hdl.handle.net/11449/199288
dc.language.isoeng
dc.relation.ispartofPflugers Archiv European Journal of Physiology
dc.sourceScopus
dc.subjectAdaptation
dc.subjectBlood pressure
dc.subjectCircadian rhythm
dc.subjectHeart rate
dc.subjectLong term
dc.subjectTime of day
dc.titleSpontaneous recovery, time course, and circadian influence on habituation of the cardiovascular responses to repeated restraint stress in ratsen
dc.typeArtigo
unesp.author.lattes1117432571971568[3]
unesp.author.orcid0000-0002-1942-858X[3]

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