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Neurosci Lett. 1992 Dec 14;148(1-2):173-6.

Localization of cannabinoid receptor in the human developing and adult basal ganglia. Higher levels in the striatonigral neurons.

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Laboratory of Neurophysiology, Faculty of Medicine, Université Libre de Bruxelles, Belgium.


In the infant and adult human basal ganglia, the finding of mRNA exclusively in the striatal medium-sized neurons together with the detection of [3H]CP55,940 binding sites in the caudate-putamen, accumbens, substantia nigra pars reticulata and globus pallidus suggests cannabinoid receptor localization on the striatal intrinsic enkephalinergic and substance P-projecting neurons and on their nigral and pallidal terminals. However, the consistent finding of higher binding in the substantia nigra pars reticulata and medial part of the globus pallidus over its lateral segment suggests cannabinoid receptor enrichment on the striatal substance P neurons which express selectively the dopamine D1 receptor.

[Indexed for MEDLINE]

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