Negative Energy Balance Enhances Ultradian Rhythmicity in Spring-Programmed Voles
Voles are small herbivorous rodents that can display both circadian activity rhythms (~24-h periodicity) and ultradian activity rhythms (~1- to 6-h periodicity). Ultradian rhythms are observed on an individual level, but also in synchronized populations. Ultradian rhythm period has been suggested to...
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crsagepubl:10.1177/07487304211005640 2023-05-15T15:56:36+02:00 Negative Energy Balance Enhances Ultradian Rhythmicity in Spring-Programmed Voles van Rosmalen, Laura Hut, Roelof A. Rijksuniversiteit Groningen 2021 http://dx.doi.org/10.1177/07487304211005640 http://journals.sagepub.com/doi/pdf/10.1177/07487304211005640 http://journals.sagepub.com/doi/full-xml/10.1177/07487304211005640 en eng SAGE Publications https://creativecommons.org/licenses/by/4.0/ CC-BY Journal of Biological Rhythms volume 36, issue 4, page 359-368 ISSN 0748-7304 1552-4531 Physiology (medical) Physiology journal-article 2021 crsagepubl https://doi.org/10.1177/07487304211005640 2022-09-21T19:51:12Z Voles are small herbivorous rodents that can display both circadian activity rhythms (~24-h periodicity) and ultradian activity rhythms (~1- to 6-h periodicity). Ultradian rhythms are observed on an individual level, but also in synchronized populations. Ultradian rhythm period has been suggested to be influenced by energy balance, but the underlying mechanisms of ultradian rhythmicity are poorly understood. We manipulated energy balance by implementing the “work-for-food” paradigm, in which small rodents are exposed to increasing levels of food scarcity at different ambient temperatures in the laboratory. Photoperiodical spring-programmed voles on high workload changed their nocturnal circadian activity and body temperature rhythm to ultradian patterns, indicating that a negative energy balance induces ultradian rhythmicity. This interpretation was confirmed by the observation that ultradian patterns arose earlier at low temperatures. Interestingly, a positive relationship between ultradian period length and workload was observed in tundra voles. Spectral analysis revealed that the power of ultradian rhythmicity increased at high workload, whereas the circadian component of running wheel activity decreased. This study shows that the balance between circadian and ultradian rhythmicity is determined by energy balance, confirming flexible circadian and ultradian rhythms in females and males of 2 different vole species: the common vole ( Microtus arvalis) and the tundra vole ( Microtus oeconomus). Article in Journal/Newspaper Common vole Microtus arvalis Tundra SAGE Publications (via Crossref) Journal of Biological Rhythms 074873042110056 |
institution |
Open Polar |
collection |
SAGE Publications (via Crossref) |
op_collection_id |
crsagepubl |
language |
English |
topic |
Physiology (medical) Physiology |
spellingShingle |
Physiology (medical) Physiology van Rosmalen, Laura Hut, Roelof A. Negative Energy Balance Enhances Ultradian Rhythmicity in Spring-Programmed Voles |
topic_facet |
Physiology (medical) Physiology |
description |
Voles are small herbivorous rodents that can display both circadian activity rhythms (~24-h periodicity) and ultradian activity rhythms (~1- to 6-h periodicity). Ultradian rhythms are observed on an individual level, but also in synchronized populations. Ultradian rhythm period has been suggested to be influenced by energy balance, but the underlying mechanisms of ultradian rhythmicity are poorly understood. We manipulated energy balance by implementing the “work-for-food” paradigm, in which small rodents are exposed to increasing levels of food scarcity at different ambient temperatures in the laboratory. Photoperiodical spring-programmed voles on high workload changed their nocturnal circadian activity and body temperature rhythm to ultradian patterns, indicating that a negative energy balance induces ultradian rhythmicity. This interpretation was confirmed by the observation that ultradian patterns arose earlier at low temperatures. Interestingly, a positive relationship between ultradian period length and workload was observed in tundra voles. Spectral analysis revealed that the power of ultradian rhythmicity increased at high workload, whereas the circadian component of running wheel activity decreased. This study shows that the balance between circadian and ultradian rhythmicity is determined by energy balance, confirming flexible circadian and ultradian rhythms in females and males of 2 different vole species: the common vole ( Microtus arvalis) and the tundra vole ( Microtus oeconomus). |
author2 |
Rijksuniversiteit Groningen |
format |
Article in Journal/Newspaper |
author |
van Rosmalen, Laura Hut, Roelof A. |
author_facet |
van Rosmalen, Laura Hut, Roelof A. |
author_sort |
van Rosmalen, Laura |
title |
Negative Energy Balance Enhances Ultradian Rhythmicity in Spring-Programmed Voles |
title_short |
Negative Energy Balance Enhances Ultradian Rhythmicity in Spring-Programmed Voles |
title_full |
Negative Energy Balance Enhances Ultradian Rhythmicity in Spring-Programmed Voles |
title_fullStr |
Negative Energy Balance Enhances Ultradian Rhythmicity in Spring-Programmed Voles |
title_full_unstemmed |
Negative Energy Balance Enhances Ultradian Rhythmicity in Spring-Programmed Voles |
title_sort |
negative energy balance enhances ultradian rhythmicity in spring-programmed voles |
publisher |
SAGE Publications |
publishDate |
2021 |
url |
http://dx.doi.org/10.1177/07487304211005640 http://journals.sagepub.com/doi/pdf/10.1177/07487304211005640 http://journals.sagepub.com/doi/full-xml/10.1177/07487304211005640 |
genre |
Common vole Microtus arvalis Tundra |
genre_facet |
Common vole Microtus arvalis Tundra |
op_source |
Journal of Biological Rhythms volume 36, issue 4, page 359-368 ISSN 0748-7304 1552-4531 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1177/07487304211005640 |
container_title |
Journal of Biological Rhythms |
container_start_page |
074873042110056 |
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1766391994871971840 |