Document Detail

Cannabinoid-1 receptor inhibition prevents the reduction of 24-hour energy expenditure with weight loss.
MedLine Citation:
PMID:  22001334     Owner:  NLM     Status:  Publisher    
Pharmacologic inhibition of the cannabinoid-1 receptor (CB1R) in rodent models leads to weight loss and time-dependent changes in energy balance. This study evaluated the effects of CB1R inhibition on weight loss, energy expenditure (EE), and food intake (FI) in an obese canine model following 4 weeks of treatment. Eighteen maintenance-fed obese beagles were evenly and randomly allocated to a CB1R inverse agonist (AM251) (2 mg/kg), a 70% food-restricted (FR) diet, or a control group (C). Evaluations included body weight and composition (dual-energy x-ray absorptiometry scan), EE (doubly labeled water), and FI. Change in body mass at week 4 was significantly greater (P < .050) in the AM251 (-1476.7 g) and FR groups (-1100.0 g) than in the C group (-228.3 g). Food intake was decreased from week 2 onward in the FR and AM251 groups (P < .05). Absolute and lean mass-adjusted EEs were decreased only in the FR group (P < .01); EE in the AM251 group was greater (P < .05) than that in the FR group. Pharmacologic inhibition of CB1R in a canine model led to sustained effects on FI and EE. Weight loss was greater with AM251 than could be accounted for by food restriction (∼25%), an effect likely mediated by the EE response to CB1R inhibition.
Alison M Strack; Susan Nicolich; Terry Faidley; Joana Achanfuo-Yeboah; Paul K Cunningham; Donald Hora; Donald Thompson; Gerry Hickey; Amy O Johnson-Levonas; Tung M Fong; Steven B Heymsfield
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-10-14
Journal Detail:
Title:  Metabolism: clinical and experimental     Volume:  -     ISSN:  1532-8600     ISO Abbreviation:  -     Publication Date:  2011 Oct 
Date Detail:
Created Date:  2011-10-17     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0375267     Medline TA:  Metabolism     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 Elsevier Inc. All rights reserved.
Merck, Whitehouse Station, NJ, USA.
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