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Simultaneous postprandial deregulation of the orexigenic endocannabinoid anandamide and the anorexigenic peptide YY in obesity.
MedLine Citation:
PMID:  21844878     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Background:The endocannabinoid system is a potential pharmacotherapy target for obesity. However, the role of this system in human food intake regulation is currently unknown.Methods:To test whether circulating endocannabinoids might functionally respond to food intake and verify whether these orexigenic signals are deregulated in obesity alongside with anorexigenic ones, we measured plasma anandamide (AEA), 2-arachidonoylglycerol (2-AG) and peptide YY (PYY) changes in response to a meal in 12 normal-weight and 12 non-diabetic, insulin-resistant obese individuals.Results:Both normal-weight and obese subjects had a significant preprandial AEA peak. Postprandially, AEA levels significantly decreased in normal-weight, whereas no significant changes were observed in obese subjects. Similarly, PYY levels significantly increased in normal-weight subjects only. No meal-related changes were found for 2-AG. Postprandial AEA and PYY changes inversely correlated with waist circumference, and independently explained 20.7 and 21.3% of waist variance. Multiple regression analysis showed that postprandial AEA and PYY changes explained 34% of waist variance, with 8.2% of the variance commonly explained.Conclusion:These findings suggest that AEA might be a physiological meal initiator in humans and furthermore show that postprandially AEA and PYY are concomitantly deregulated in obesity.International Journal of Obesity advance online publication, 16 August 2011; doi:10.1038/ijo.2011.165.
Authors:
B Gatta-Cherifi; I Matias; M Vallée; A Tabarin; G Marsicano; P V Piazza; D Cota
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-8-16
Journal Detail:
Title:  International journal of obesity (2005)     Volume:  -     ISSN:  1476-5497     ISO Abbreviation:  -     Publication Date:  2011 Aug 
Date Detail:
Created Date:  2011-8-16     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101256108     Medline TA:  Int J Obes (Lond)     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
1] Group 'Energy Balance and Obesity', INSERM U862, Neurocentre Magendie, Bordeaux, France [2] Endocrinology Department, Haut-Lévêque Hospital, Pessac, France [3] Université de Bordeaux 2, Bordeaux, France.
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