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Sexual dimorphism in the adrenal cortex: implications for stress responsiveness
Panagiota Siatra1, Stefan R Bornstein1,2,3, Charlotte Steenblock1
1Department of Internal Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, 01307 Dresden, Germany.
European Journal of Endocrinology
|June 17, 2026
Summary
The stress response involves the hypothalamic-pituitary-adrenal (HPA) axis. Adrenal gland differences between sexes impact stress hormone levels and mental health.
Area of Science:
- Endocrinology
- Neuroscience
- Reproductive Biology
Background:
- The stress response is mediated by the hypothalamic-pituitary-adrenal (HPA) axis.
- Prolonged HPA axis activation leads to sex-specific hormonal imbalances affecting mental health.
Purpose of the Study:
- To review the mechanisms of sex-dependent differences in HPA axis responses to stress.
- To highlight adrenocortical traits contributing to these sex-differential responses.
Main Methods:
- Review of recent studies in mice and humans.
- Focus on adrenal gland sexual dimorphism.
Main Results:
- The adrenal gland exhibits significant sexual dimorphism in physiology, metabolism, and steroidogenesis.
- These dimorphic traits influence the gland's stress adaptation and hormonal output.
Conclusions:
- Adrenocortical dimorphism is key to understanding sex-differential HPA axis responses to stress.
- This has implications for sex-specific mental health outcomes.
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