The association between maternal psychological stress and inflammatory cytokines in allergic young children

Mayumi Tsuji1, Chihaya Koriyama2, Megumi Yamamoto3

  • 1Department of Environmental Health, University of Occupational and Environmental Health, Kitakyusyu, Japan; Department of Environmental Toxicology, University of California, Davis, United States.

Peerj
|January 29, 2016
PubMed

Insights

Maternal psychological stress, measured by depression and perceived stress scales, is linked to increased inflammatory gene expression (IL-6, IL-8) in young allergic children, particularly those with asthma or allergic rhinitis.

Area of Science:

  • Pediatric Allergy and Immunology
  • Psychoneuroimmunology
  • Molecular Biology

Background:

  • Existing research indicates a correlation between psychological stress and asthma prevalence.
  • Parental psychological stress may impact inflammatory pathways in allergic children.

Purpose of the Study:

  • To investigate the relationship between maternal psychological status and inflammatory gene expression in young allergic children.

Main Methods:

  • Quantified mRNA expression of IL-6, IL-8, IL-10, and IL-22 in 152 young allergic children using qRT-PCR.
  • Assessed maternal depression using the Centre for Epidemiological Studies Depression Scale (CES-D).
  • Assessed maternal perceived stress using the Japanese Perceived Stress Scale (JPSS).

Main Results:

  • Maternal CES-D scores positively correlated with IL-6 mRNA expression in children with asthma.
  • Maternal JPSS scores positively correlated with IL-8 mRNA expression in asthmatic children and IL-6 mRNA expression in children with allergic rhinitis.
  • Trends observed in children with house dust mite-specific IgE were not statistically significant.

Conclusions:

  • Maternal psychological stress is associated with altered inflammatory responses in allergic children.
  • Findings support the hypothesis linking maternal stress to pediatric allergic inflammation.

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