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Alcohol and fetal endocrine function.

J C Rose, P J Meis, M I Castro

    Neurobehavioral Toxicology and Teratology
    |January 1, 1981
    PubMed
    Summary
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    Maternal alcohol consumption during pregnancy harms fetal development by disrupting endocrine function. This study found alcohol exposure in ovine fetuses depressed pituitary-thyroid activity while increasing adrenal cortical function.

    Area of Science:

    • Perinatal medicine
    • Endocrinology
    • Toxicology

    Background:

    • Maternal alcohol abuse during pregnancy poses risks to fetal growth and development.
    • The specific mechanisms behind alcohol's adverse fetal effects are not fully understood.
    • Fetal endocrine system perturbations are a potential pathway for alcohol's teratogenicity.

    Purpose of the Study:

    • To investigate the impact of in utero alcohol exposure on fetal endocrine function.
    • Specifically examining the effects on the pituitary-thyroid and adrenal cortical axes in the ovine fetus.

    Main Methods:

    • Utilizing chronically cannulated ovine fetuses for direct physiological measurements.
    • Administering alcohol to assess its effects on fetal endocrine parameters.

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    Main Results:

    • Alcohol exposure in utero significantly altered fetal endocrine function.
    • Observed a depression in fetal pituitary-thyroid function.
    • Noted an increase in fetal adrenal cortical function.

    Conclusions:

    • In utero alcohol exposure disrupts critical fetal endocrine systems.
    • The pituitary-thyroid and adrenal cortical axes are sensitive to alcohol's effects.
    • These endocrine changes may contribute to the adverse perinatal outcomes associated with maternal alcohol abuse.