A Role of Drd2 Hippocampal Neurons in Context-Dependent Food Intake.
Neuron
; 102(4): 873-886.e5, 2019 05 22.
Article
en En
| MEDLINE
| ID: mdl-30930044
ABSTRACT
Associative learning of food cues that link location in space to food availability guides feeding behavior in mammals. However, the function of specific neurons that are elements of the higher-order, cognitive circuitry controlling feeding behavior is largely unexplored. Here, we report that hippocampal dopamine 2 receptor (hD2R) neurons are specifically activated by food and that both acute and chronic modulation of their activity reduces food intake in mice. Upstream projections from the lateral entorhinal cortex (LEC) to the hippocampus activate hD2R cells and can also decrease food intake. Finally, activation of hD2R neurons interferes with the encoding of a spatial memory linking food to a specific location via projections from the hippocampus to the septal area. Altogether these data describe a previously unidentified LEC > hippocampus > septal higher-order circuit that regulates feeding behavior.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Aprendizaje por Asociación
/
Corteza Entorrinal
/
Tabique del Cerebro
/
Conducta Alimentaria
/
Memoria Espacial
/
Hipocampo
/
Neuronas
Límite:
Animals
Idioma:
En
Revista:
Neuron
Asunto de la revista:
NEUROLOGIA
Año:
2019
Tipo del documento:
Article
País de afiliación:
Estados Unidos