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Related Experiment Videos

Biochemical determinants in Gender identity

W Hamilton, P H Chapman

    Padiatrie Und Padologie. Supplementum
    |January 1, 1977
    PubMed
    Summary
    This summary is machine-generated.

    Peripheral testosterone metabolism may influence gender identity and thought. Studies in various conditions show hormone levels and brain steroid transformation are key to establishing gender identity, suggesting new therapeutic approaches.

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    Area of Science:

    • Endocrinology
    • Neuroscience
    • Psychiatry

    Background:

    • The relationship between sex hormones and gender identity is complex.
    • Peripheral hormone metabolism's role in gender direction requires further investigation.

    Purpose of the Study:

    • To investigate the influence of peripheral testosterone metabolism on gender identity.
    • To explore the interplay between peripheral hormones and cerebral steroid transformation in establishing gender identity.

    Main Methods:

    • HCG stimulation tests were performed on patients with conditions like testicular feminizing syndrome, XO/XY syndrome, female trans-sexualism, and testicular agenesis.
    • Plasma and urinary testosterone, and specific androgen metabolites (5 alpha-diol, 5 beta-diol, epiandrosterone) were measured before and after stimulation.

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  • Steroid transformation was studied using human fetal brain tissue incubation.

    • Main Results:

    • Peripheral hormone levels and their metabolites, combined with cerebral steroid metabolism, appear to establish gender identity.
    • Findings align with existing research on steroid transformation in brain tissue.

    Conclusions:

    • Peripheral androgen and estrogen levels, along with central steroid processing, are crucial for gender identity formation.
    • This research necessitates a novel therapeutic strategy for psychological and physical gender abnormalities.