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  • Title: [Neuroendocrine disorders in anorexia nervosa--primary or secondary?].
    Author: Støving RK, Hansen-Nord M, Hangaard J, Hagen C.
    Journal: Ugeskr Laeger; 1996 Dec 02; 158(49):7052-6. PubMed ID: 8999610.
    Abstract:
    Anorexia nervosa is associated with multiple endocrine abnormalities. Hypothalamic neuropeptides and monoamines are involved in the regulation of human appetite, and they are changed in several ways in anorexia nervosa. But it remains to be clarified whether these alterations are secondary or etiologic. Feeding behaviour in anorexia nervosa is characterised by a strong ambivalence and not by loss of appetite. Hypothalamic amenorrhea is a diagnostic criterion, and is not only secondary as it often precedes the weight loss and persists for a long time after weight and motor activity have returned to normal. Hypersecretion of corticotropin releasing hormone seems to be secondary to starvation, but at the same time it may keep up and intensify the anorexia, physical hyperactivity and amenorrhea. Low production of insulinlike growth factor-I and high growth hormone secretion reflects the nutritional deprivation. In conclusion most of the neuroendocrine abnormalities are secondary to weight loss, but some of them seem to participate in a circulus vitiosus and maintain the emaciated state.
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