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The growth hormone response to insulin induced hypoglycaemia in anorexia nervosa and control underweight or normal subjects

par Brauman, Henri ;Grégoire, Françoise
Référence European journal of clinical investigation, 5, 3, page (289-295)
Publication Publié, 1975-06

Article révisé par les pairs

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Résumé :

Hypoglycaemic stimulation of growth hormone (GH) secretion has been measured in 12 anorexia nervosa patients, 11 adolescents approximately matched for weight and age, 14 underweight adults with no history of anorexia nervosa and 27 normal patients. The results showed a high proportion of blunted growth hormone responses among the anorexia nervosa patients as compared to normal subjects, underweight adolescents or adults. In the group of underweight adults, diminished growth hormone responses were most frequently seen in patients with depressive illness. The complex pathogenesis of the diminished growth hormone response in anorexia nervosa involves many factors; undernutrition itsef, possible hypothalamic insufficiency related to the psychopathological background and other endocrine abnormalities like hypogonadism, relative hypercorticism and hypothyroidism. The interference of the nutritional, psychological and endocrine factors could not be dissociated in our investigation or from the review of the literature on this subject. It is suggested that hypothalamic insufficiency plays a prominent role in the growth hormone hyporesponsiveness in anorexia nervosa. Although diminished, the stimulated growth hormone response remains higher in anorexia nervosa than in true hypopituitarism. This phenomenon coupled to a preserved or even increased suprarenal function enables one to differentiate cachexia resulting from anorexia nervosa and hypopituitarism leading eventually to cachexia.