Back to Journals » Nature and Science of Sleep » Volume 11

The effects of aging on sleep parameters in a healthy, melatonin-competent mouse model

Authors Paulose JK, Wang C, O'Hara BF, Cassone VM

Received 4 May 2019

Accepted for publication 24 June 2019

Published 12 August 2019 Volume 2019:11 Pages 113—121

DOI https://doi.org/10.2147/NSS.S214423

Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Dr Colin Mak

Peer reviewer comments 2

Editor who approved publication: Dr Sutapa Mukherjee


Jiffin K Paulose,1 Chanung Wang,1,2 Bruce F O’Hara,1 Vincent M Cassone1

1Department of Biology, University of Kentucky, Lexington, KY 40515, USA; 2Department of Neurology, Washington University School of Medicine, St. Louis, MO 63110, USA

Background: Sleep disturbances are common maladies associated with human age. Sleep duration is decreased, sleep fragmentation is increased, and the timing of sleep onset and sleep offset is earlier. These disturbances have been associated with several neurodegenerative diseases. Mouse models for human sleep disturbances can be powerful due to the accessibility to neuroscientific and genetic approaches, but these are hampered by the fact that most mouse models employed in sleep research have spontaneous mutations in the biosynthetic pathway(s) regulating the rhythmic production of the pineal hormone melatonin, which has been implicated in human sleep.
Purpose and method: The present study employed a non-invasive piezoelectric measure of sleep wake cycles in young, middle-aged and old CBA mice, a strain capable of melatonin biosynthesis, to investigate naturally-occurring changes in sleep and circadian parameters as the result of aging.
Results: The results indicate that young mice sleep less than do middle-aged or aged mice, especially during the night, while the timing of activity onset and acrophase is delayed in aged mice compared to younger mice.
Conclusion: These data point to an effect of aging on the quality and timing of sleep in these mice but also that there are fundamental differences between control of sleep in humans and in laboratory mice.

Keywords: sleep, circadian rhythms, aging, piezoelectric, CBA/J


Creative Commons License This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at https://www.dovepress.com/terms.php and incorporate the Creative Commons Attribution - Non Commercial (unported, v3.0) License. By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms.

Download Article [PDF]  View Full Text [HTML][Machine readable]