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Relation between stressful life events, neuropeptides and cytokines: results from the LISA birth cohort study

Gunda Herberth1, Annegret Weber, Stefan Röder

  • 1Department of Environmental Immunology, Helmholtz Centre for Environmental Research-UFZ Leipzig, Leipzig, Germany. gunda.herberth@ufz.de

Pediatric Allergy and Immunology : Official Publication of the European Society of Pediatric Allergy and Immunology
|March 4, 2008
PubMed

Insights

Parental divorce in children is linked to higher vasoactive intestinal peptide (VIP) and interleukin-4 (IL-4) levels, suggesting VIP may mediate stress effects on immune responses. Parental unemployment impacts immune regulation via unknown mechanisms.

Area of Science:

  • Immunology
  • Psychoneuroimmunology
  • Pediatric Allergy

Background:

  • Stressful life events are known to influence allergic disease development.
  • The precise mechanisms linking psychological stress to immune system dysfunction remain unclear.
  • Understanding these links is crucial for pediatric health and allergy prevention.

Purpose of the Study:

  • To investigate the association between stressful life events and neuropeptide/cytokine concentrations in children.
  • To explore potential mediators of stress-induced immune changes in pediatric populations.
  • To identify specific life stressors that correlate with immune markers in children.

Main Methods:

  • Analysis of blood samples from 234 six-year-old children participating in the LISAplus study.
  • Measurement of neuropeptides: vasoactive intestinal peptide (VIP), somatostatin (SOM), substance P (SP).
  • Quantification of Th1/Th2 cytokines: interferon-gamma (IFN-gamma) and interleukin-4 (IL-4).
  • Assessment of parental-reported life events (e.g., parental separation, unemployment, family illness/death) via questionnaire.

Main Results:

  • Children of separated/divorced parents exhibited elevated VIP and IL-4 levels.
  • Parental unemployment was associated with reduced IFN-gamma concentrations.
  • Severe family illness/death showed no significant association with measured neuropeptides or cytokines.
  • Concomitant severe family illness and death correlated with decreased SP levels.

Conclusions:

  • Vasoactive intestinal peptide (VIP) may act as a mediator between parental separation and a Th2-shifted immune response in children.
  • Parental unemployment affects children's immune regulation through an unidentified pathway.
  • Reduced substance P (SP) levels in children experiencing family bereavement did not appear to impact immune regulation significantly.

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