Document Detail

Ghrelin neutralization during fasting-refeeding cycle impairs the recuperation of body weight and alters hepatic energy metabolism.
MedLine Citation:
PMID:  21241769     Owner:  NLM     Status:  Publisher    
Ghrelin, a hormone whose levels increase during food deprivation, plays a pivotal role in the regulation of food intake, energy metabolism and storage, as well as in insulin sensitivity. Here, we investigated the effects of acyl-ghrelin neutralization with the acyl-ghrelin-binding compound NOX-B11(2) during the fasting-refeeding cycle. Our data demonstrate that ghrelin neutralization with NOX-B11(2) impairs recuperation of lost body weight after food deprivation. Analysis of enzymes involved in glucose and lipid metabolism in liver of fed, fasted and refed rats revealed that neutralization of acyl-ghrelin resulted in minor decreases in the enzymes of glycolytic and lipogenic pathways during fasting. However, during refeeding these enzymes as well as glycogen levels recovered more slowly when acyl-ghrelin was blocked. The high levels of ghrelin in response to food deprivation may contribute to an adequate decrease in hepatic glycolytic and lipogenic enzymes and aid in the recovery of body weight and energetic reserves once food becomes available after the fasting period.
Susana Sangiao-Alvarellos; Steffen Helmling; María J Vázquez; Sven Klussmann; Fernando Cordido
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-1-15
Journal Detail:
Title:  Molecular and cellular endocrinology     Volume:  -     ISSN:  1872-8057     ISO Abbreviation:  -     Publication Date:  2011 Jan 
Date Detail:
Created Date:  2011-1-25     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7500844     Medline TA:  Mol Cell Endocrinol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011. Published by Elsevier Ireland Ltd.
Department of Medicine, School of Health Science, University of A Coruña, Campus de Oza, s/n, 15006, A Coruña, Spain; INIBIC, Instituto de Investigación Biomédica de A Coruña, Xubias de Arriba, 84, 15006, A Coruña, Spain.
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