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XB-ART-42083
Results Probl Cell Differ 2010 Jan 01;52:139-45. doi: 10.1007/978-3-642-14426-4_11.
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Endocannabinoid modulation in the olfactory epithelium.

Breunig E , Czesnik D , Piscitelli F , Di Marzo V , Manzini I , Schild D .


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Appetite, food intake, and energy balance are closely linked to the endocannabinoid system in the central nervous system. Now, endocannabinoid modulation has been discovered in the peripheral olfactory system of larval Xenopus laevis. The endocannabinoid 2-AG has been shown to influence odorant-detection thresholds according to the hunger state of the animal. Hungry animals have increased 2-AG levels due to enhanced synthesis of 2-AG in sustentacular supporting cells. This renders olfactory receptor neurons, exhibiting CB1 receptors, more sensitive at detecting lower odorant concentrations, which probably helps the animal to locate food. Since taste and vision are also influenced by endocannabinoids, this kind of modulation might boost sensory inputs of food in hungry animals.

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Species referenced: Xenopus laevis
Genes referenced: ag1 cnr1