Inverse association between slow-wave sleep and low-grade inflammation in children and adolescents with major

Michael A Strumberger1, Isabelle Häberling2, Sophie Emery2

  • 1Research Department of Child and Adolescent Psychiatry, Psychiatric Hospital of the University of Basel, Wilhelm-Klein-Str. 27, 4002, Basel, Switzerland; Centre for Chronobiology, Psychiatric Hospital of the University of Basel, Wilhelm-Klein-Str. 27, 4002, Basel, Switzerland; Psychiatric Services Lucerne, Lucerne, Switzerland.

Sleep Medicine
|April 26, 2024
PubMed

Insights

Children with major depressive disorder (MDD) show links between slow-wave sleep and inflammation. Specifically, reduced slow-wave sleep in depressed youth correlates with higher inflammation markers.

Area of Science:

  • Neuroscience
  • Psychiatry
  • Sleep Medicine

Background:

  • Major depressive disorder (MDD) in children and adolescents is associated with various physiological changes.
  • Low-grade inflammation is increasingly recognized as a potential factor in the pathophysiology of MDD.
  • Sleep disturbances are common in youth with MDD, but their relationship with inflammation requires further investigation.

Purpose of the Study:

  • To examine the association between objective and self-reported sleep variables and low-grade inflammation in children and adolescents with moderate to severe MDD.
  • To compare these associations between individuals with MDD and healthy controls (HC).

Main Methods:

  • A cross-sectional study involving 29 children/adolescents with MDD and 29 HC.
  • One-week actigraphy for objective sleep assessment.
  • One-night sleep electroencephalography (EEG) and self-reported sleep questionnaires.
  • Plasma high-sensitivity C-reactive protein (hsCRP) as a marker for low-grade inflammation.

Main Results:

  • No significant difference in hsCRP levels between MDD and HC groups.
  • In MDD participants, hsCRP correlated with increased subjective insomnia and altered sleep architecture (more N2 sleep, less slow-wave sleep).
  • After adjustments, only the inverse association between hsCRP and slow-wave sleep remained significant, with group status moderating this relationship.

Conclusions:

  • Alterations in slow-wave sleep architecture may play a role in modulating low-grade inflammatory processes in pediatric MDD.
  • Slow-wave sleep disruption is a potential mechanism linking MDD and inflammation in youth.
Abstract

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