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Prenatal maternal stress and early caregiving experiences: implications for childhood asthma risk
1Channing Laboratory, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA. rosalind.wright@channing.harvard.edu
Insights
Early life stress may impact children's asthma development by affecting the neuroendocrine and immune systems. Maternal prenatal stress and social stressors can program the hypothalamic-pituitary-adrenal (HPA) axis, potentially leading to immune dysregulation and asthma.
Area of Science:
- Pediatric allergy and immunology
- Neuroendocrinology
- Developmental psychology
Background:
- Asthma development pathways in children remain debated.
- The role of stress in immune system modulation is increasingly recognized.
- The neuroendocrine system links stress to immune responses.
Purpose of the Study:
- To explore the potential role of stress in the development of childhood asthma.
- To investigate the neuroendocrine and immune system mechanisms involved.
- To examine the impact of prenatal and early-life stress on the hypothalamic-pituitary-adrenal (HPA) axis.
Main Methods:
- Review of existing evidence on stress, neuroendocrine function, and immune responses.
- Examination of animal model data on maternal prenatal stress effects.
- Analysis of the impact of early social stressors on HPA axis regulation.
Main Results:
- Maternal prenatal stress may program the infant's HPA axis.
- Early social stressors can also affect HPA axis function.
- Dysregulation of the HPA axis and immune system is implicated in asthma development.
Conclusions:
- Stress, particularly during critical developmental periods, is a potential factor in childhood asthma.
- The HPA axis serves as a key mediator between stress and immune system dysregulation relevant to asthma.
- Further research is warranted to elucidate these complex pathways.
Abstract:
There is still much debate as to the pathways through which some children develop asthma and others do not. One possible mechanism outlined here concerns the way in which stress may influence the neuroendocrine system and thence the immune system. Supporting evidence from animal experiments suggests that maternal prenatal stress may be of importance, resulting in programming of the infant's HPA axis. In addition, social stressors during the early part of a child's life may also affect the HPA axis and thence dysregulation of immune system functioning with implications for the development of asthma.
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