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Noninvasive, High-throughput Determination of Sleep Duration in Rodents
Published on: April 18, 2018
Validation of a novel method to interrupt sleep in the mouse
Christopher M Sinton1, Della Kovakkattu, Randall S Friese
1Department of Internal Medicine, UT Southwestern Medical Center at Dallas, Dallas, TX 75390-8874, USA. Christopher.Sinton@UTSouthwestern.edu
Journal of Neuroscience Methods
|August 4, 2009
Summary
Sleep interruption in mice significantly reduced REM and NREM sleep. This study presents a new method for sleep interruption (SI) in mice, offering a valuable model for understanding SI
Area of Science:
- Neuroscience
- Sleep Science
- Animal Models
Background:
- Sleep disruption is common in critical illnesses and psychiatric disorders.
- Sleep interruption (SI) can have severe cognitive and neurophysiological consequences, similar to total sleep deprivation.
- Understanding SI's impact is crucial for improving recovery from critical illness.
Purpose of the Study:
- To detail a method for inducing sleep interruption in a murine model.
- To investigate the effects of a specific SI protocol on sleep architecture in mice.
- To establish the mouse as a viable model for studying sleep interruption.
Main Methods:
- Utilized a laboratory orbital shaker to oscillate mouse cages, inducing sleep interruption (30s every 2 min for 48h).
- Monitored sleep patterns, including rapid eye movement (REM) and non-rapid eye movement (NREM) sleep.
- Measured NREM sleep depth using delta (1-4 Hz) power in the electroencephalogram during recovery.
Main Results:
- Sleep interruption significantly decreased both REM and NREM sleep duration in mice.
- Mice showed a rebound in REM sleep and increased NREM sleep depth upon recovery.
- Observed differences in sleep changes compared to previous studies in rats using similar SI parameters.
Conclusions:
- The described method provides a reliable way to induce controlled sleep interruption in mice.
- The mouse model demonstrates significant alterations in sleep architecture due to SI, with notable recovery patterns.
- Mice offer a valuable alternative model for studying the multifaceted effects of sleep interruption.
