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Related Experiment Videos

Associated hormonal declines in aging: DHEAS.

S Perrini1, L Laviola, A Natalicchio

  • 1Section of Internal Medicine, Endocrinology and Metabolic Diseases, Department of Emergency and Organ Transplantation, University of Bari, Bari, Italy.

Journal of Endocrinological Investigation
|July 27, 2005
PubMed
Summary
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Dehydroepiandrosterone (DHEA) levels decrease with age, and while DHEA shows promise in animal models for metabolic and vascular health, human studies yield mixed results. Further research is needed for specific elderly populations.

Area of Science:

  • Endocrinology
  • Gerontology
  • Metabolic research

Background:

  • Dehydroepiandrosterone (DHEA) and its sulfate (DHEAS) are abundant human adrenal steroid hormones.
  • DHEA acts directly or indirectly via conversion to androgens/estrogens.
  • Circulating DHEA(S) declines with age and is linked to various age-related diseases.

Purpose of the Study:

  • Investigate the role of DHEA in age-associated illnesses.
  • Evaluate DHEA's effects on metabolic and vascular health.
  • Assess the potential benefits of DHEA supplementation in aging individuals.

Main Methods:

  • Review of epidemiological studies on DHEA(S) levels and age-related diseases.
  • Analysis of experimental data from DHEA administration in animal models (obesity, diabetes).

Related Experiment Videos

  • Examination of in vitro studies on DHEA's effect on endothelial function and nitric oxide (NO) synthesis.
  • Assessment of clinical trial results regarding DHEA replacement in adrenal insufficiency and supplementation in healthy individuals.

    • Main Results:

    • DHEA administration reduced visceral fat and improved insulin resistance in animal models.
    • In vitro studies suggest DHEA enhances endothelial function via increased nitric oxide (NO) synthesis.
    • DHEA replacement improved well-being, mood, and sexuality in adrenal insufficiency patients.
    • In healthy individuals, DHEA supplementation effects on metabolic and cardiovascular health are contradictory.

    Conclusions:

    • DHEA plays a complex role in aging and associated diseases.
    • While promising in preclinical studies, DHEA supplementation's benefits in healthy aging humans are not consistently proven.
    • DHEA treatment may benefit specific elderly subgroups, warranting further investigation.