Impact of chronic REM sleep deprivation on glucose homeostasis, insulin sensitivity, oxidative stress, and histological changes in adult male Wistar rats.
Level 5 - mechanism / opinion, no new human data
Animal research (rodent model)
PubMed 42407329 · doi:10.1016/j.sleep.2026.109105
What was done
Eighteen adult male Wistar rats were randomly divided into three groups (n = 6 per group): chronic sleep deprivation (CSD), platform control (WP), and standard control (CON). CSD rats underwent daily REM sleep deprivation for 18 hours per day across five weeks using the modified multi-platform method. Following the intervention, intraperitoneal glucose and insulin tolerance tests were performed, and investigators measured body weight, food and water intake, regulatory hormones (corticosterone, insulin, acetylcholinesterase, HOMA-IR), biochemical markers (glucose, lipid profile, liver/kidney function tests), oxidative stress markers, and organ histopathology.
What was found
The abstract reports no numerical values, effect sizes, or confidence intervals. Qualitatively, it reports that REM-deprived rats developed glucose intolerance, elevated plasma glucose, increased corticosterone, elevated LDH, increased oxidative stress markers, decreased BuChE, and hepatic and pancreatic histopathological damage. The abstract makes conflicting statements regarding insulin dynamics, reporting both "increased insulin sensitivity" and alterations leading to "insulin resistance."
Why it matters
This animal model demonstrates that sustained, severe REM sleep restriction disrupts glycemic control and induces systemic oxidative stress and cytotoxic damage in metabolic organs.
Limits
Findings in male rodents under severe sleep deprivation (18 hours/day) do not directly translate to human sleep architecture or clinical metabolic pathology. The sample size was small (n = 6 per group), female animals were excluded, and the abstract lacks quantitative data while reporting internally contradictory findings on insulin sensitivity.
Cited by
- partial Depriving a rat of sleep causes it to develop diabetes within approximately one month.