Glucose metabolism during ghrelin infusion in patients with anorexia nervosa.

Abstract:

:Anorexia nervosa (AN) is an eating disorder characterized by self-induced starvation due to fear of adiposity. Ghrelin, gastric peptide with potent orexigenic, adipogenic, GH-releasing and metabolic properties, is elevated in AN. We have previously shown that intervention with exogenous ghrelin is not effective in terms of inducing neuroendocrine and appetite responses in AN. In this arm of the same study protocol we investigated glucose metabolism responses to 5 h i.v. infusion of active ghrelin in a) 9 severely malnourished AN patients, b) 6 AN patients who partially recovered body weight (PRAN), c) 10 constitutionally thin female subjects with regular menstrual cycles. At baseline, no significant differences were observed in blood glucose, insulin, c-peptide, adiponectin, and homeostasis model assessment index values, between the studied groups. During ghrelin infusions, blood glucose levels significantly increased in all groups although significantly less in low-weight AN; insulin levels were not significantly affected, while c-peptide levels were significantly suppressed only in the constitutionally thin and PRAN subjects. In addition to our previous findings of impaired neuroendocrine and appetite responses in patients with AN, we conclude that metabolic responses to ghrelin are attenuated in these patients, which tend to recover with weight gain.

journal_name

J Endocrinol Invest

authors

Miljic D,Djurovic M,Pekic S,Doknic M,Stojanovic M,Milic N,Casanueva FF,Ghatei M,Popovic V

doi

10.1007/BF03350816

subject

Has Abstract

pub_date

2007-10-01 00:00:00

pages

771-5

issue

9

eissn

0391-4097

issn

1720-8386

pii

4141

journal_volume

30

pub_type

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