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[Hormonal principles in normal and pathologic somatic sexual development].

H U Schweikert, F Neumann

    Klinische Wochenschrift
    |January 15, 1986
    PubMed
    Summary
    This summary is machine-generated.

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    Normal sexual development relies on genetic, gonadal, and somatic sex establishment. Male development requires specific hormones like testosterone and dihydrotestosterone during critical periods.

    Area of Science:

    • Endocrinology
    • Developmental Biology
    • Genetics

    Context:

    • Sexual development is a complex process involving genetic, gonadal, and somatic sex determination.
    • The differentiation of gonads into testes or ovaries is a critical early step.
    • Somatic sexual differentiation follows gonadal differentiation.

    Purpose:

    • To elucidate the hormonal mechanisms governing normal male and female somatic sexual differentiation.
    • To detail the roles of testosterone, Müllerian-inhibiting hormone (MIH), and dihydrotestosterone (DHT) in male development.
    • To describe syndromes resulting from hormonal synthesis or action abnormalities.

    Summary:

    • Normal male sexual development requires the synthesis and action of testosterone, MIH, and DHT during a critical in-utero period.

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  • Absence or dysfunction of these hormones, even with testes present, can lead to incomplete male somatic differentiation.
  • Female somatic development is largely independent of these specific hormones, highlighting a key sex-based difference in developmental pathways.

    • Impact:

    • Provides a foundational understanding of sexual differentiation for diagnosing and managing disorders of sex development (DSDs).
    • Clarifies the hormonal basis of phenotypic sex, crucial for clinical genetics and endocrinology.
    • Highlights the critical role of precise hormonal signaling during sensitive developmental windows.