Active Time-Restricted Feeding Improved Sleep-Wake Cycle in db/db Mice

Area of Science:

• Chronobiology
• Metabolic Disorders
• Sleep Science

Background:

• Diabetes is linked to increased sleep disturbance, leading to daytime sleepiness and impaired function.
• Diabetic mouse models (db/db mice) show disrupted sleep-wake cycles, including increased fragmentation and attenuated daily rhythms.
• Active time-restricted feeding (ATRF) is known to benefit metabolic health, but its effect on sleep in diabetes is unclear.

Purpose of the Study:

• To investigate whether ATRF can restore the normal sleep-wake cycle in diabetic mice (db/db).
• To assess the impact of ATRF on circadian and ultradian sleep-wake patterns in a diabetic model.

Main Methods:

• Utilized a non-invasive piezoelectric system to monitor sleep-wake profiles in db/db mice.
• Established baseline sleep patterns with ad libitum feeding (ALF).
• Administered ATRF and analyzed changes in sleep-wake patterns, including circadian and ultradian rhythms.

Main Results:

• Diabetic db/db mice exhibited abnormal sleep patterns, with reduced light-phase sleep and increased, unusually cycled dark-phase sleep.
• Sleep bout length was significantly shortened in db/db mice during both light and 24-hour periods.
• ATRF successfully restored circadian sleep-wake rhythms but suppressed ultradian oscillations in db/db mice.

Conclusions:

• ATRF demonstrates efficacy in normalizing circadian sleep-wake patterns in diabetic mice.
• ATRF may represent a novel therapeutic strategy for addressing diabetes-induced sleep-wake cycle irregularities.
• Further research could explore ATRF's potential to mitigate daytime sleepiness and improve quality of life for diabetic patients.