Document Detail


Loss of meal-induced decrease in plasma ghrelin levels in patients with anorexia nervosa.
MedLine Citation:
PMID:  12679456     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Studies have shown that ghrelin plays a major role in energy homeostasis and modulation of feeding behavior. However, little is known about the influence of food consumption on plasma ghrelin levels in humans. Therefore, we investigated responses of plasma ghrelin to food intake, meal volume and meal nutritional value in healthy volunteers and women with anorexia nervosa (AN). After overnight fasting, all subjects received either a standardized breakfast or fiber. Plasma ghrelin levels were measured before and after the meal. Fasting plasma ghrelin was significantly higher in AN patients than in controls (1,800.6 +/- 47.0 vs. 795.9 +/- 24.3 pg/ml, P < 0.001) (606.8 +/- 15.8 vs. 268.2 +/- 8.2 pmol/l, P < 0.001), and correlated negatively with percentage of body fat in both groups. Ghrelin levels markedly fell after consumption of either a standardized meal or fiber in controls, but not in anorexic women. Thus, we concluded that the acute plasma ghrelin response to food intake, which in healthy individuals is independent of meal caloric value, is impaired in women with AN. This abnormality may be part of a chronic adaptation to prolonged food restriction, which attempts to restore a normal feeding conduct by maintaining the drive to eat.
Authors:
Jara Nedvídková; Ivana Krykorková; Vladimír Barták; Hana Papezová; Philip W Gold; Salvatore Alesci; Karel Pacak
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Journal of clinical endocrinology and metabolism     Volume:  88     ISSN:  0021-972X     ISO Abbreviation:  J. Clin. Endocrinol. Metab.     Publication Date:  2003 Apr 
Date Detail:
Created Date:  2003-04-07     Completed Date:  2003-05-09     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  0375362     Medline TA:  J Clin Endocrinol Metab     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1678-82     Citation Subset:  AIM; IM    
Affiliation:
Institute of Endocrinology, Charles University, Prague, Czech Republic.
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MeSH Terms
Descriptor/Qualifier:
Adipose Tissue
Adult
Anorexia Nervosa / blood*
Body Composition
Dietary Fiber / administration & dosage
Energy Intake
Fasting
Female
Food*
Ghrelin
Humans
Nutritive Value
Peptide Hormones / blood*
Chemical
Reg. No./Substance:
0/Ghrelin; 0/Peptide Hormones

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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