Maternal sleep loss linked to later metabolic changes in mice
A mouse experiment linked sleep deprivation during pregnancy to altered fetal brain and liver gene activity and later metabolic and behavioral changes in offspring.
Limit: Measurements covered fetal gene activity, not its causal contribution to later metabolic changes
Edited by Boris Djordjevic · AgingResearch.News
In a mouse experiment, researchers deprived mothers of sleep during pregnancy and followed their offspring’s metabolism and behavior into adulthood. They also measured gene activity in the fetal liver and hypothalamus, a brain region that helps regulate body functions.
Female offspring showed delayed-onset difficulty handling blood sugar, reduced responsiveness to insulin—a hormone that regulates blood sugar—and altered fat use as they aged. Males showed only mild metabolic changes. Offspring also showed changes in measures of anxiety-like and helplessness-related behavior that worsened with chronic stress. Gene-activity analyses found coordinated changes in fetal brain-development and nerve-signaling pathways alongside liver metabolism. Comparisons of fetal and adult liver samples found persistent disruption of metabolic pathways. The researchers suggested these early changes may contribute to later metabolic and emotional problems.
Why it matters
The work addresses whether prenatal conditions may shape a shared vulnerability to metabolic and emotional disorders across the lifespan.
Caveats
This mouse experiment does not establish effects in people or show that the fetal gene-activity changes caused the later outcomes.
- Chronic stress exposure
- Maternal sleep deprivation
- Lipid and ceramide metabolism
- Synaptic transmission
- Glucose intolerance
- Mice
The paper
Acta Biochimica et Biophysica Sinica, Oct 26, 2026, Open access
