D1 and D2 neurons in the nucleus accumbens enable positive and negative control over sugar intake in mice.
D1 and D2 neurons in the nucleus accumbens enable positive and negative control over sugar intake in mice.
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DOI:
10.1016/j.celrep.2023.112190
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发表时间:
2023-03-28
期刊:
影响因子:
8.8
通讯作者:
中科院分区:
文献类型:
--
作者:
Although the consumption of carbohydrates is needed for survival, their potent reinforcing properties drive obesity worldwide. In turn, sugar overconsumption reveals a major role for brain reward systems in regulating sugar intake. However, it remains elusive how different cell types within the reward circuitries control the initiation and termination of sugary meals. Here, we identified the distinct nucleus accumbens cell types that mediate the chemosensory versus postprandial properties of sweet sugars. Specifically, D1 neurons enhance sugar intake via specialized connections to taste ganglia, whereas D2 neurons mediate the termination of sugary meals via anatomical connections to circuits involved in appetite suppression. Consistently, D2, but not D1, neurons partially mediate the satiating effects of glucagon-like peptide 1 (GLP-1) agonists. Thus, these nucleus accumbens cell types function as a behavioral switch, enabling positive versus negative control over sugar intake. Our study contributes to unveiling the cellular and circuit substrates of sugar overconsumption. Sandoval-Rodríguez et al. identified a switch mechanism that controls sugar intake within the mammalian reward system. Two separate types of dopamine-receptor-expressing neuron in ventral striatum respectively drive and limit caloric sugar intake. The switch mechanism involves distinct anatomical connections to gustatory versus appetite-suppressing circuits.
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影响因子:
25
作者:
Tellez LA;Han W;Zhang X;Ferreira TL;Perez IO;Shammah-Lagnado SJ;van den Pol AN;de Araujo IE
通讯作者:
de Araujo IE
影响因子:
1.9
作者:
Baird, JP;John, SJS;Nguyen, EAN
通讯作者:
Nguyen, EAN
影响因子:
3.8
作者:
SCHWARTZBAUM, JS;DILORENZO, PM
通讯作者:
DILORENZO, PM
影响因子:
2.9
作者:
Hu, Frank B.;Malik, Vasanti S.
通讯作者:
Malik, Vasanti S.
影响因子:
64.5
作者:
Han W;Tellez LA;Perkins MH;Perez IO;Qu T;Ferreira J;Ferreira TL;Quinn D;Liu ZW;Gao XB;Kaelberer MM;Bohórquez DV;Shammah-Lagnado SJ;de Lartigue G;de Araujo IE
通讯作者:
de Araujo IE