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Adrenal activity in anorexia nervosa

B T Walsh, J L Katz, J Levin

    Psychosomatic Medicine
    |October 1, 1978
    PubMed
    Summary

    Women with anorexia nervosa show significantly elevated cortisol production and plasma levels. This suggests hypothalamic-pituitary dysfunction contributing to excessive adrenocortical activity in this condition.

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    Area of Science:

    • Endocrinology
    • Neuroscience
    • Psychiatry

    Background:

    • Anorexia nervosa is characterized by severe malnutrition and significant psychological distress.
    • Adrenocortical function is often altered in eating disorders, but the precise mechanisms remain unclear.

    Purpose of the Study:

    • To investigate adrenocortical activity in emaciated women diagnosed with anorexia nervosa.
    • To determine if cortisol production and levels are elevated compared to healthy controls.

    Main Methods:

    • Measured cortisol production rates, 24-hour mean plasma cortisol concentrations, and urinary free cortisol excretion in patients and controls.
    • Assessed dexamethasone suppression test responses in a subset of patients.

    Main Results:

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    • Patients exhibited significantly higher cortisol production rates relative to body size (p < 0.001 and p < 0.02).
    • Mean 24-hour plasma cortisol (p < 0.001) and urinary free cortisol excretion (p < 0.01) were significantly elevated in patients.
    • Inadequate suppression of cortisol was observed in three patients after dexamethasone administration.

    Conclusions:

    • Emaciated patients with anorexia nervosa display excessive cortisol production, indicating a disturbance in hypothalamic-pituitary-adrenocortical axis regulation.
    • Elevated adrenocortical activity may be linked to psychobiological factors and the physiological effects of severe malnutrition in anorexia nervosa.