ArticleThe International journal of eating disorders2025
Changes in Circadian Rhythm in Chronically-Starved Mice Are Associated With Glial Cell Density Reduction in the Suprachiasmatic Nucleus.
Article in The International journal of eating disorders, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Improvements in sleep, weight, and eating-disorder symptoms following off-label leptin treatment in an adolescent with chronic anorexia nervosa and insomnia: a case report.Journal of eating disorders · 2026Article
- DSOK-0011 Potentially Regulates Circadian Misalignment and Affects Gut Microbiota Composition in Activity-Based Anorexia Model.The International journal of eating disorders · 2026Article
- Article
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Authors and funding
12 authors.
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Abstract
objectiveAnorexia nervosa (AN) is an eating disorder characterized by severe weight loss and associated with hyperactivity and circadian rhythm disruption. However, the cellular basis of circadian rhythm disruption is poorly understood. Glial cells in the suprachiasmatic nucleus (SCN), the principal circadian pacemaker, are involved in regulating circadian rhythms. We hypothesize that the circadian rhythm disruption in AN patients is associated with glial cell changes in the SCN.
methodIn the starvation-induced hyperactivity mouse model, mice had free access to a running wheel and received a restricted amount of food once a day, until a 25% body weight loss was reached and maintained their weight loss for two weeks. This was followed by a refeeding phase. Different daily periods of running wheel activity were defined, such as food anticipatory activity up to 4 h before feeding. Circadian rhythmicity was analyzed using the cosinor method. Gene expression was evaluated using real-time polymerase chain reaction. Immunohistochemistry was used to quantify astrocytes, microglia, and oligodendrocytes.
resultsStarvation induced changes in circadian rhythm, as indicated by changes in cosinor-based characteristics. Refeeding reversed these effects. Additionally, there was an increase in cryptochrome circadian regulator 1 expression and a decrease in the density of astrocytes and oligodendrocytes in the SCN after chronic starvation. DISCUSSION: Starvation-induced alterations in circadian rhythms are associated with molecular, and cellular changes in the hypothalamus. Reduced astrocytes and oligodendrocytes in the SCN in a mouse model of AN suggest that glial pathophysiology may play a role in circadian rhythm disruption.
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