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Related Experiment Videos

Stress and the developing hippocampus: a double-edged sword?

Kristen L Brunson1, Yuncai Chen, Sarit Avishai-Eliner

  • 1Department of Anatomy and Neurobiology, University of CA at Irvine, Irvine, CA 92697, USA. kbrunson@uci.edu

Molecular Neurobiology
|June 5, 2003
PubMed
Summary

Early life stress impacts the developing brain, acting as a double-edged sword. Corticotropin-releasing hormone (CRH) in the hippocampus plays a key role in these long-term cognitive effects.

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Area of Science:

  • Neuroscience
  • Developmental Biology
  • Molecular Psychiatry

Background:

  • Neuronal function is shaped by genetics and experience, especially during development.
  • Early-life stress can have lasting effects on the still-plastic nervous system.
  • Stress has a "double-edged sword" effect on hippocampal learning and memory: acute stress can enhance, while chronic stress impairs function.

Purpose of the Study:

  • To explore the molecular mechanisms underlying the dual effects of stress on the hippocampus.
  • To emphasize novel findings on the role of corticotropin-releasing hormone (CRH) in the developing hippocampus.
  • To connect the roles of CRH in the developing hippocampus to long-term cognitive function in adulthood.

Main Methods:

  • Review of existing literature on stress response mediators in the hippocampus.

Related Experiment Videos

  • Focus on molecular mechanisms of corticotropin-releasing hormone (CRH).
  • Analysis of physiological and pathological roles of CRH in the developing brain.

    • Main Results:

    • CRH is a key neuropeptide mediating the stress response in the hippocampus.
    • CRH exhibits both physiological and pathological roles during hippocampal development.
    • These roles are relevant to understanding long-term cognitive consequences of early-life experiences.

    Conclusions:

    • CRH is a critical molecular player in how early-life stress influences hippocampal function.
    • Understanding CRH's role is essential for elucidating the long-term impact of early experience on adult cognition.
    • Further research into CRH mechanisms may reveal therapeutic targets for stress-related cognitive impairments.