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Related Experiment Videos

Dehydroepiandrosterone--a neurosteroid.

E Friess1, T Schiffelholz, T Steckler

  • 1Max Planck Institute of Psychiatry, Munich, Germany. friess@mpipsykl.mpg.de

European Journal of Clinical Investigation
|April 3, 2001
PubMed
Summary

Dehydroepiandrosterone (DHEA) and its sulfate ester (DHEAS) are neurosteroids synthesized in the brain. While they modulate brain functions, clinical evidence for DHEA replacement therapy remains weak.

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Area of Science:

  • Neuroendocrinology
  • Molecular Neuroscience
  • Steroid Biochemistry

Background:

  • Dehydroepiandrosterone (DHEA) and its sulfate ester (DHEAS) are key adrenal hormones and steroid precursors.
  • Elevated DHEA/S levels are found in the brain, where they are synthesized by glial cells.
  • These compounds are termed 'neurosteroids' due to their brain-specific synthesis and function.

Purpose of the Study:

  • To review neurosteroid physiology at cellular and molecular levels.
  • To outline current understanding of neurosteroid modulation of brain functions.
  • To assess the clinical evidence for DHEA replacement therapy.

Main Methods:

  • Literature review of preclinical and clinical studies on neurosteroids.
  • Analysis of data on DHEA/S synthesis, distribution, and function in the brain.

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  • Evaluation of existing clinical trial results for DHEA replacement therapy.

    • Main Results:

    • DHEA/S are synthesized de novo in brain glial cells, acting as neurosteroids.
    • Neurosteroids play a role in modulating various physiological functions within the brain.
    • Current clinical studies show limited evidence supporting DHEA replacement therapy efficacy.

    Conclusions:

    • Neurosteroids like DHEA/S are integral to brain physiology.
    • Further research is needed to clarify the therapeutic potential of DHEA.
    • Existing clinical data do not strongly support DHEA replacement therapy.