| Association between mammalian lifespan and circadian free-running period: the circadian resonance hypothesis revisited. | |
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MedLine Citation:
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PMID: 20392719 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Biological rhythms that oscillate with periods close to 24 h (circadian cycles) are pervasive features of mammalian physiology, facilitating entrainment to the 24 h cycle generated by the rotation of the Earth. In the absence of environmental time cues, circadian rhythms default to their endogenous period called tau, or the free-running period. This sustained circadian rhythmicity in constant conditions has been reported across the animal kingdom, a ubiquity that could imply that innate rhythmicity confers an adaptive advantage. In this study, we found that the deviation of tau from 24 h was inversely related to the lifespan in laboratory mouse strains, and in other rodent and primate species. These findings support the hypothesis that misalignment of endogenous rhythms and 24 h environmental cycles may be associated with a physiological cost that has an effect on longevity. |
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Authors:
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C A Wyse; A N Coogan; C Selman; D G Hazlerigg; J R Speakman |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2010-04-14 |
Journal Detail:
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Title: Biology letters Volume: 6 ISSN: 1744-957X ISO Abbreviation: Biol. Lett. Publication Date: 2010 Oct |
Date Detail:
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Created Date: 2010-09-14 Completed Date: 2011-01-03 Revised Date: 2011-10-24 |
Medline Journal Info:
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Nlm Unique ID: 101247722 Medline TA: Biol Lett Country: England |
Other Details:
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Languages: eng Pagination: 696-8 Citation Subset: IM |
Affiliation:
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Institute of Biological and Environmental Sciences, University of Aberdeen, Tillydrone Avenue, Aberdeen, AB24 2TZ, UK. c.wyse@abdn.ac.uk |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Circadian Rhythm* Life Expectancy* Mammals / physiology* Phylogeny |
| Grant Support | |
ID/Acronym/Agency:
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//Biotechnology and Biological Sciences Research Council |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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