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Related Experiment Videos

Pediatric stress: hormonal mediators and human development.

Evangelia Charmandari1, Tomoshige Kino, Emmanuil Souvatzoglou

  • 1Pediatric and Reproductive Endocrinology Branch, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA. charmane@mail.nih.gov

Hormone Research
|March 22, 2003
PubMed
Summary

Early life stress can disrupt the stress system, leading to lifelong health issues. Genetic vulnerability and timing of stress significantly influence the development of these conditions.

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Area of Science:

  • Neuroendocrinology
  • Developmental Psychology
  • Psychiatry

Background:

  • Stress activates the hypothalamic-pituitary-adrenal (HPA) axis and sympathetic nervous system.
  • Key stress system effectors include CRH, vasopressin, glucocorticoids, and catecholamines.
  • Appropriate stress system function is vital for well-being, performance, and social interaction.

Purpose of the Study:

  • To explore the long-term consequences of inappropriate stress system responsiveness.
  • To investigate the impact of early life stress on brain development and function.
  • To understand the interplay between genetics, environment, and stress timing in disease development.

Main Methods:

  • Review of existing literature on stress system physiology and psychopathology.

Related Experiment Videos

  • Analysis of hormonal actions during critical developmental periods.
  • Examination of neurobiological changes associated with early stress exposure.

    • Main Results:

    • Inappropriate stress system activation can impair growth, development, and lead to endocrine, metabolic, autoimmune, and psychiatric disorders.
    • Early life stress can result in hyperactivity of the stress system, affecting amygdala, hippocampus, and dopaminergic pathways.
    • Long-lasting behavioral and physiological changes, including anxiety, depression, and metabolic syndrome components, can occur.

    Conclusions:

    • Early life stress can lead to persistent alterations in the stress system, impacting lifelong health.
    • Genetic factors play a significant role in an individual's vulnerability to stress-related disorders.
    • Hormones like CRH and glucocorticoids are critical in mediating the long-term effects of stress.