Title : Cannabinoid receptor availability modulates the magnitude of dopamine release in vivo in the human reward system: A preliminary multitracer positron emission tomography study.

Pub. Date : 2022 May

PMID : 35470551






6 Functional Relationships(s)
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1 Although considerable preclinical evidence has demonstrated several functional CB1 R-DA interactions, the relation between human CB1 R availability, DA release capacity and drug-reinforcing effects has been never investigated so far. Dopamine cannabinoid receptor 1 Homo sapiens
2 On the other hand, the magnitude of DA release was greater in those subjects with lower CB1 R availability in the anterior cingulate cortex (ACC) (r = -0.66; p = 0.03). Dopamine cannabinoid receptor 1 Homo sapiens
3 Also, the correlation between the DA release in the nucleus accumbens with the subjective AMPH effect liking was mediated through the CB1 R availability in the ACC (c" = -0.76; p = 0.01). Dopamine cannabinoid receptor 1 Homo sapiens
4 Our small preliminary study reports for the first time that the human prefrontal CB1 R availability is a determinant of DA release within both the ventral and dorsal reward corticostriatal circuit, contributing to a number of studies supporting the existence of an interaction between CB1 R and DA receptors at the molecular and behavioural level. Dopamine cannabinoid receptor 1 Homo sapiens
5 Our small preliminary study reports for the first time that the human prefrontal CB1 R availability is a determinant of DA release within both the ventral and dorsal reward corticostriatal circuit, contributing to a number of studies supporting the existence of an interaction between CB1 R and DA receptors at the molecular and behavioural level. Dopamine cannabinoid receptor 1 Homo sapiens
6 Our small preliminary study reports for the first time that the human prefrontal CB1 R availability is a determinant of DA release within both the ventral and dorsal reward corticostriatal circuit, contributing to a number of studies supporting the existence of an interaction between CB1 R and DA receptors at the molecular and behavioural level. Dopamine cannabinoid receptor 1 Homo sapiens