Maternal Stress Impact on Childhood Allergic Diseases

Maternal stress during pregnancy and the early postnatal period has emerged as a significant factor in the developmental origins of allergic diseases in childhood. Evidence indicates that psychological distress—whether in the form of anxiety, depression, bereavement or job strain—can programme the developing immune system, shifting the balance towards atopic phenotypes such as asthma, wheeze and atopic dermatitis. These effects appear to be mediated by dysregulation of maternal neuroendocrine systems, notably the hypothalamic–pituitary–adrenal axis, and by epigenetic modifications in both mother and child. Observational cohorts spanning high-income and low- and middle-income settings report consistent dose–response relationships between higher stress levels and elevated risk of allergic outcomes, with critical windows during late gestation. The global burden of childhood asthma and eczema underscores the importance of maternal mental health support as a preventive strategy, with practical applications ranging from routine psychosocial screening in antenatal care to targeted interventions aimed at stress reduction and resilience building.

Research from Nature Portfolio

Recent studies have used genome-wide DNA methylation profiling to unravel the mechanistic link between prenatal psychosocial stress and persistent wheezing. Whole-genome bisulfite sequencing of mother–child pairs revealed stress-associated methylation changes predominantly in enhancer regions, affecting genes involved in neuroendocrine regulation and neurotransmitter receptor pathways. In children, but not in mothers, critical pathways for lung maturation—such as calcium and Wnt signalling—were epigenetically deregulated and correlated with persistent wheeze until age five. These insights highlight epigenetic reprogramming as a key mediator of stress-induced allergic susceptibility and point towards potential biomarkers and therapeutic targets to mitigate long-term respiratory morbidity.

Maternal Stress Impact on Childhood Allergic Diseases publication trend

The graph below shows the total number of articles in maternal stress impact on childhood allergic diseases across all publications each year (not limited to Nature Index journals).

Technical terms

Epigenetics: Heritable changes in gene expression not caused by alterations in DNA sequence, often via DNA methylation or histone modification.

Wheeze: A high-pitched whistling sound during breathing, commonly associated with airway narrowing in asthma.

Hypothalamic–Pituitary–Adrenal (HPA) axis: The neuroendocrine system that controls stress responses through hormone release, including cortisol.

Enhancer element: A non-coding DNA region that increases transcription of target genes, often subject to epigenetic regulation.

Atopic dermatitis: A chronic inflammatory skin disorder characterised by itchy, eczematous lesions, often co-occurring with asthma and allergic rhinitis.

References

1. Mothers' anxiety during pregnancy is associated with asthma in their children. Journal of Allergy and Clinical Immunology (2009).
2. Maternal Bereavement and Childhood Asthma—Analyses in Two Large Samples of Swedish Children. PLOS ONE (2011).
3. Exposure to psychosocial job strain during pregnancy and odds of asthma and atopic dermatitis among 7-year old children - a prospective cohort study.. Scandinavian Journal of Work, Environment & Health (2014).
4. Maternal Depressive Symptoms across Early Childhood and Asthma in School Children: Findings from a Longitudinal Australian Population Based Study. PLOS ONE (2015).
5. Association of Maternal Psychosocial Stress With Increased Risk of Asthma Development in Offspring. American Journal of Epidemiology (2017).
6. Prenatal maternal stress and wheeze in children: novel insights into epigenetic regulation. Scientific Reports (2016).
7. Associations between maternal mental health and early child wheezing in a South African birth cohort. Pediatric Pulmonology (2018).