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Related Experiment Videos

A longitudinal study of serotonergic function in depression.

Robert N Golden1, Amy Durr Heine, R David Ekstrom

  • 1Department of Psychiatry, University of North Carolina School of Medicine, Campus Box #7160, Chapel Hill, NC 27599-7160, USA. rgolden@css.unc.edu

Neuropsychopharmacology : Official Publication of the American College of Neuropsychopharmacology
|April 3, 2002
PubMed
Summary

Blunted prolactin responses to clomipramine challenge in Major Depression patients persisted throughout illness and recovery. This suggests a potential biological vulnerability, not just a temporary state marker, in depression.

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Area of Science:

  • Neuroendocrinology
  • Psychiatry
  • Clinical Psychology

Background:

  • Neuroendocrine abnormalities are reported in depression.
  • Longitudinal studies on these responses are limited.
  • Serotonergic challenge tests may reveal state vs. trait markers.

Purpose of the Study:

  • To investigate if blunted prolactin response to clomipramine is a state or trait marker in Major Depression.
  • To assess prolactin response longitudinally during and after treatment.

Main Methods:

  • 20 Major Depression patients underwent clomipramine challenge tests.
  • Tests were administered before treatment, post-acute treatment, post-continuation, and after washout.
  • Results were compared to matched healthy controls.

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Main Results:

  • Depressed patients showed blunted prolactin response compared to controls at all time points.
  • Responses did not significantly change after desipramine treatment or during remission.
  • Blunted response persisted even after clinical recovery.

Conclusions:

  • Blunted prolactin response to clomipramine challenge appears to be a persistent trait marker in Major Depression.
  • This finding suggests an underlying biological vulnerability associated with depression.
  • Further research is warranted to explore the implications of this neuroendocrine finding.