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Related Experiment Videos

Glucocorticoid receptors in depression

C M Pariante1, C B Nemeroff, A H Miller

  • 1Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA 30322, USA.

Israel Journal of Medical Sciences
|December 1, 1995
PubMed
Summary

Major depression involves hyperactivity of the hypothalamic-pituitary-adrenal (HPA) axis, potentially due to altered glucocorticoid receptors (GRs). Further research into GRs

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Area of Science:

  • Neuroscience
  • Endocrinology
  • Psychiatry

Background:

  • Major depression is linked to hyperactivity of the hypothalamic-pituitary-adrenal (HPA) axis, involving corticotropin-releasing factor (CRF) hypersecretion.
  • This HPA axis hyperactivity may stem from impaired glucocorticoid feedback inhibition, mediated by glucocorticoid receptors (GRs).
  • Inconsistent findings exist regarding GR number and function in depressed patients, possibly due to methodological and patient heterogeneity.

Purpose of the Study:

  • To investigate the role of glucocorticoid receptors (GRs) in the pathophysiology of major depression.
  • To explore the potential link between altered GRs and HPA axis dysfunction in depression.
  • To examine the functional sensitivity of cells to glucocorticoids in depressed individuals.

Main Methods:

  • Review of existing studies on GRs kinetics and function in major depression.
  • Analysis of inconsistent results regarding GR number in depressed patients.
  • Examination of studies assessing cellular resistance to glucocorticoid effects on immune function.

Main Results:

  • Studies on GR number in depression have yielded inconsistent results.
  • Fewer studies investigating cellular sensitivity to glucocorticoids show more consistent findings.
  • Depressed patients' cells exhibit increased resistance to glucocorticoids' inhibitory effects on immune function.

Conclusions:

  • Altered glucocorticoid receptor (GR) function, rather than number, may be more critical in major depression.
  • Increased cellular resistance to glucocorticoids in depression warrants further investigation.
  • The role of GRs in depression and potential therapeutic targets require continued scrutiny.

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