Brain Temperature in Spontaneously Hypertensive Rats during Physical Exercise in Temperate and Warm Environments

Página do item simplificado
dc.creatorLucas Rios Drummond
dc.creatorAna Cançado Kunstetter
dc.creatorFilipe Ferreira Vaz
dc.creatorHelton Oliveira Campos
dc.creatorAndré Gustavo Pereira de Andrade
dc.creatorCândido Celso Coimbra
dc.creatorAntônio José Natali
dc.creatorSamuel Penna Wanner
dc.creatorThales Nicolau Prímola Gomes
dc.date.accessioned2023-07-19T18:12:49Z
dc.date.accessioned2025-09-08T23:40:20Z
dc.date.available2023-07-19T18:12:49Z
dc.date.issued2016
dc.identifier.doihttps://doi.org/10.1371/journal.pone.0155919
dc.identifier.issn1932-6203
dc.identifier.urihttps://hdl.handle.net/1843/56741
dc.languagepor
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofPLOS ONE
dc.rightsAcesso Aberto
dc.subjectTemperatura
dc.subjectCérebro
dc.subjectAbdome agudo
dc.subjectExercícios físicos
dc.subject.otherBrain temperature
dc.subject.otherHypertensive rats
dc.subject.otherAbdominal temperature
dc.titleBrain Temperature in Spontaneously Hypertensive Rats during Physical Exercise in Temperate and Warm Environments
dc.typeArtigo de periódico
local.citation.epage19
local.citation.issue5
local.citation.spage1
local.citation.volume11
local.description.resumoThis study aimed to evaluate brain temperature (Tbrain) changes in spontaneously hypertensive rats (SHRs) subjected to two different physical exercise protocols in temperate or warm environments. We also investigated whether hypertension affects the kinetics of exercise-induced increases in Tbrain relative to the kinetics of abdominal temperature (Tabd) increases. Male 16-week-old normotensive Wistar rats (NWRs) and SHRs were implanted with an abdominal temperature sensor and a guide cannula in the frontal cortex to enable the insertion of a thermistor to measure Tbrain. Next, the animals were subjected to incremental-speed (initial speed of 10 m/min; speed was increased by 1 m/min every 3 min) or constant-speed (60% of the maximum speed) treadmill running until they were fatigued in a temperate (25°C) or warm (32°C) environment. Tbrain, Tabd and tail skin temperature were measured every min throughout the exercise trials. During incremental and constant exercise at 25°C and 32°C, the SHR group exhibited greater increases in Tbrain and Tabd relative to the NWR group. Irrespective of the environment, the heat loss threshold was attained at higher temperatures (either Tbrain or Tabd) in the SHRs. Moreover, the brain-abdominal temperature differential was lower at 32°C in the SHRs than in the NWRs during treadmill running. Overall, we conclude that SHRs exhibit enhanced brain hyperthermia during exercise and that hypertension influences the kinetics of the Tbrain relative to the Tabd increases, particularly during exercise in a warm environment.
local.identifier.orcidhttps://orcid.org/0000-0002-6042-7757
local.identifier.orcidhttps://orcid.org/0000-0001-5506-996X
local.identifier.orcidhttps://orcid.org/0000-0001-8981-6724
local.identifier.orcidhttps://orcid.org/0000-0002-4927-4024
local.identifier.orcidhttps://orcid.org/0000-0002-4659-1032
local.identifier.orcidhttps://orcid.org/0000-0002-4001-4429
local.publisher.countryBrasil
local.publisher.departmentEEF - DEPARTAMENTO DE EDUCAÇÃO FÍSICA
local.publisher.departmentEEF - DEPARTAMENTO DE ESPORTES
local.publisher.departmentICB - DEPARTAMENTO DE FISIOLOGIA E BIOFÍSICA
local.publisher.initialsUFMG
local.url.externahttps://journals.plos.org/plosone/article?id=10.1371/journal.pone.0155919

Arquivos

Pacote original

Agora exibindo 1 - 1 de 1
Imagem de Miniatura
Nome:
Brain Temperature in Spontaneously Hypertensive Rats during Physical Exercise in Temperate and Warm Environments.pdf
Tamanho:
1.03 MB
Formato:
Adobe Portable Document Format
Baixar

Licença do pacote

Agora exibindo 1 - 1 de 1
Imagem de Miniatura
Nome:
License.txt
Tamanho:
1.99 KB
Formato:
Plain Text
Descrição:
Baixar

Coleções

Artigo de Periódico

Logo UFMG