Abstract：
:The endocannabinoid system (ECS) plays a critical role in obesity development. The pharmacological blockade of cannabinoid receptor type 1 (CB(1)) has been shown to reduce body weight and to alleviate obesity-related metabolic disorders. An unsolved question is at which anatomical level CB(1) modulates energy balance and the mechanisms involved in its action. Here, we demonstrate that CB(1) receptors expressed in forebrain and sympathetic neurons play a key role in the pathophysiological development of diet-induced obesity. Conditional mutant mice lacking CB(1) expression in neurons known to control energy balance, but not in nonneuronal peripheral organs, displayed a lean phenotype and resistance to diet-induced obesity. This phenotype results from an increase in lipid oxidation and thermogenesis as a consequence of an enhanced sympathetic tone and a decrease in energy absorption. In conclusion, CB(1) signaling in the forebrain and sympathetic neurons is a key determinant of the ECS control of energy balance.
journal_name
Cell Metabjournal_title
Cell metabolismauthors
Quarta C,Bellocchio L,Mancini G,Mazza R,Cervino C,Braulke LJ,Fekete C,Latorre R,Nanni C,Bucci M,Clemens LE,Heldmaier G,Watanabe M,Leste-Lassere T,Maitre M,Tedesco L,Fanelli F,Reuss S,Klaus S,Srivastava RK,Monory Kdoi
10.1016/j.cmet.2010.02.015subject
Has Abstractpub_date
2010-04-07 00:00:00pages
273-85issue
4eissn
1550-4131issn
1932-7420pii
S1550-4131(10)00070-7journal_volume
11pub_type
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