Cannabis Sativa targets mediobasal hypothalamic neurons to stimulate appetite.
Cannabis Sativa targets mediobasal hypothalamic neurons to stimulate appetite.
复制标题
大麻Sativa的目标是下丘脑底内侧神经元,以刺激食欲。
DOI:
10.1038/s41598-023-50112-5
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发表时间:
2023-12-27
影响因子:
4.6
通讯作者:
中科院分区:
文献类型:
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作者:
The neurobiological mechanisms that regulate the appetite-stimulatory properties of cannabis sativa are unresolved. This work examined the hypothesis that cannabinoid-1 receptor (CB1R) expressing neurons in the mediobasal hypothalamus (MBH) regulate increased appetite following cannabis vapor inhalation. Here we utilized a paradigm where vaporized cannabis plant matter was administered passively to rodents. Initial studies in rats characterized meal patterns and operant responding for palatable food following exposure to air or vapor cannabis. Studies conducted in mice used a combination of in vivo optical imaging, electrophysiology and chemogenetic manipulations to determine the importance of MBH neurons for cannabis-induced feeding behavior. Our data indicate that cannabis vapor increased meal frequency and food seeking behavior without altering locomotor activity. Importantly, we observed augmented MBH activity within distinct neuronal populations when mice anticipated or consumed food. Mechanistic experiments demonstrated that pharmacological activation of CB1R attenuated inhibitory synaptic tone onto hunger promoting Agouti Related Peptide (AgRP) neurons within the MBH. Lastly, chemogenetic inhibition of AgRP neurons attenuated the appetite promoting effects of cannabis vapor. Based on these results, we conclude that MBH neurons contribute to the appetite stimulatory properties of inhaled cannabis.
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影响因子:
20.3
作者:
Jais A;Brüning JC
通讯作者:
Brüning JC
影响因子:
2.6
作者:
Abrams, D. I.
通讯作者:
Abrams, D. I.
影响因子:
64.8
作者:
通讯作者:
--
影响因子:
64.5
作者:
Chen Y;Lin YC;Kuo TW;Knight ZA
通讯作者:
Knight ZA
影响因子:
4.3
作者:
Koch M
通讯作者:
Koch M