Rest-Phase Hypothermia Reveals a Link Between Aging and Oxidative Stress: A Novel Hypothesis.
aging
birds
body temperature
food deprivation
oxidative stress
rest-phase hypothermia
thermoregulation
Journal
Frontiers in physiology
ISSN: 1664-042X
Titre abrégé: Front Physiol
Pays: Switzerland
ID NLM: 101549006
Informations de publication
Date de publication:
2020
2020
Historique:
received:
22
06
2020
accepted:
17
11
2020
entrez:
28
12
2020
pubmed:
29
12
2020
medline:
29
12
2020
Statut:
epublish
Résumé
In endotherms, growth, reproduction, and survival are highly depended on energy metabolism. Maintenance of constant body temperature can be challenging for endotherms under continuously changing environmental conditions, such as low or high ambient temperatures or limited food. Thus, many birds may drop body temperature below normothermic values during the night, known as rest-phase hypothermia, presumably to decrease energy metabolism. Under the assumption of the positive link between aerobic metabolism and reactive oxygen species, it is reasonable to suggest that low body temperature, a proxy of energy metabolism, will affect oxidative stress of the birds. Aging may considerably affect behavior, performance and physiology in birds and still requires further investigation to understand age-specific changes along the lifespan of the organism. Until today, age-specific rest-phase hypothermic responses and their effect on oxidant-antioxidant status have never been investigated. We exposed 25 zebra finches (
Identifiants
pubmed: 33362574
doi: 10.3389/fphys.2020.575060
pmc: PMC7756103
doi:
Types de publication
Journal Article
Langues
eng
Pagination
575060Informations de copyright
Copyright © 2020 Zagkle, Grosiak, Bauchinger and Sadowska.
Déclaration de conflit d'intérêts
The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
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