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Stress, aging, and brain oxidative damage.

J Liu1, A Mori

  • 1Division of Biochemistry and Molecular Biology, University of California, Berkeley 94720-3202, USA.

Neurochemical Research
|November 11, 1999
PubMed
Summary
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Stress disrupts hormonal and neurotransmitter balance, increasing oxidative damage. This damage accelerates aging and contributes to age-related diseases.

Area of Science:

  • Biomedical Science
  • Neuroscience
  • Aging Research

Background:

  • Stress responses involve complex homeostatic adjustments mediated by hormones, neurotransmitters, and oxidants.
  • These mediators have dual roles, exerting beneficial effects when balanced but harmful effects when dysregulated.
  • Imbalances in stress adaptation can lead to increased oxidative stress and damage.

Purpose of the Study:

  • To investigate the role of stress-induced homeostatic imbalances in aging acceleration.
  • To explore the link between oxidative damage, stress, and age-related degenerative diseases.

Main Methods:

  • Conceptual review and synthesis of existing research on stress physiology and aging.
  • Analysis of the interplay between hormonal, neurotransmitter, and oxidant systems during stress.

Related Experiment Videos

  • Examination of the contribution of oxidative damage to normal aging and stress-associated aging.

    • Main Results:

    • Stress adaptation relies on maintaining balance among hormones, neurotransmitters, and oxidants.
    • Imbalances and over-interactions within these systems promote oxidant generation and biomolecular damage.
    • This stress-induced oxidative damage exacerbates the oxidant burden from normal metabolism, particularly in mitochondria.

    Conclusions:

    • Stress-associated oxidative damage is a significant factor in accelerated aging.
    • This damage may contribute to the pathogenesis of age-related neurodegenerative diseases.
    • Maintaining homeostatic balance is crucial for mitigating stress-induced aging and disease.