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Updated: Jun 12, 2026

Establishment of Rat Models Mimicking Gender-affirming Hormone Therapies
Published on: January 10, 2025
Gender-related endocrinological dysfunction and mental disorders.
Maria Luisa Figueira1, Sílvia Ouakinin
1Department of Psychiatry, Faculty of Medicine, Hospital Santa Maria, University of Lisbon, Lisbon, Portugal. ml.figueira@hsm.min-saude.pt
Sex and gender influence stress response and vulnerability to psychiatric disorders like schizophrenia and affective disorders. Understanding these differences is key to explaining variations in mental health.
Area of Science:
- Neuroendocrinology
- Psychiatry
- Genetics
Background:
- Established link between endocrine and neuropsychiatric disorders.
- Sex and gender influence biological determinants of mental health.
- Endocrinological dysfunctions are risk factors for mental disorders.
Purpose of the Study:
- Review updated data on sex and gender differences in stress reactivity.
- Examine the hypothalamic-pituitary-adrenal axis in relation to psychiatric disorders.
- Explore the interplay of genetic expression, gender role, and stress in mental health.
Main Methods:
- Literature review of recent investigations.
- Analysis of stress reactivity mechanisms.
- Focus on stress-diathesis models.
Main Results:
- Gender and sexual dimorphism impact brain functions and health differences.
- Hormonal reactivity to stress, sex hormones, and gene-environment interactions are key mechanisms.
- Schizophrenia and affective disorders show distinct gender-based prevalence and clinical aspects.
Conclusions:
- Sex and gender significantly modulate stress reactivity and psychiatric disorder vulnerability.
- Early determinants of stress reactivity, genetic expression, and gender roles contribute to biological modulation.
- These factors help explain gender disparities in the prevalence and presentation of mental disorders.
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