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Related Experiment Videos

Systemic hormonal and physiological abnormalities in anxiety disorders.

O G Cameron1, R M Nesse

  • 1Department of Psychiatry, University of Michigan Medical Center, Ann Arbor 48109.

Psychoneuroendocrinology
|January 1, 1988
PubMed
Summary

Anxiety disorders show consistent peripheral adrenergic hyperactivity, with notable differences from normal stress responses. Findings suggest potential central nervous system dysfunction involving adrenergic and GABAergic mechanisms.

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Area of Science:

  • Neuroscience
  • Endocrinology
  • Psychiatry

Background:

  • Anxiety disorders are linked to systemic hormonal and physiological abnormalities.
  • Previous research indicates adrenergic hyperactivity and potential central nervous system dysregulation.

Purpose of the Study:

  • To review consistent and emerging findings on physiological abnormalities in anxiety disorders.
  • To explore differences between anxiety-induced and normal stress responses.

Main Methods:

  • Systematic review of studies on hormonal and physiological abnormalities in anxiety disorders.
  • Analysis of findings related to adrenergic system, hypothalamic-pituitary-adrenal axis, and other neurochemical markers.

Main Results:

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  • Consistent findings include peripheral adrenergic hyperactivity (norepinephrine increase, epinephrine normal), increased mitral valve prolapse incidence, and normal dexamethasone suppression of the HPA axis.
  • Less certain findings involve elevated ACTH, cortisol, prolactin, increased platelet MAO activity, decreased gonadal axis activity, reduced nighttime melatonin, and altered adrenoreceptor function.
  • Adrenergic hyperactivity is observed in both anxiety and normal stress, but hormonal profiles and system reactivity differ.

    • Conclusions:

    • Findings tentatively support central nervous system dysfunction in adrenergic and GABAergic mechanisms in anxiety disorders.
    • Differences in hormonal profiles, particularly epinephrine levels, and system reactivity distinguish anxiety from normal stress responses.