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Alpha-2 adrenergic receptor function in post-stroke depression.

S Barry1, T G Dinan

  • 1Department of Psychiatry, Trinity College Medical School, St James's Hospital, Dublin, Ireland.

Psychological Medicine
|May 1, 1990
PubMed
Summary
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Growth hormone response to desipramine was blunted in post-stroke depression (PSD) patients. This suggests reduced alpha-2 adrenoceptor function may indicate PSD.

Area of Science:

  • Neuroscience
  • Endocrinology
  • Psychiatry

Background:

  • Post-stroke depression (PSD) is a common complication following a stroke.
  • The neurobiological underpinnings of PSD are not fully understood.
  • Alpha-2 adrenoceptors play a role in mood regulation.

Purpose of the Study:

  • To investigate the growth hormone (GH) response to desipramine in patients with PSD.
  • To compare GH response in PSD patients, non-depressed post-stroke (PS) patients, and healthy controls.
  • To explore the potential role of alpha-2 adrenoceptor function in PSD.

Main Methods:

  • Desipramine was administered to participants.
  • Growth hormone (GH) levels were measured.
  • Participants included ten PSD patients, eight non-depressed PS patients, and eight healthy controls.

Related Experiment Videos

Main Results:

  • The GH response to desipramine was significantly blunted in patients with PSD compared to controls.
  • Non-depressed PS patients showed an intermediate GH response.
  • This indicates a potential deficit in alpha-2 adrenoceptor function in PSD.

Conclusions:

  • Diminished alpha-2 adrenoceptor function may be a significant biomarker for post-stroke depression.
  • These findings contribute to understanding the neurobiology of PSD.
  • Further research is warranted to explore therapeutic implications.