Figure 1.
Dark-field autoradiograms comparing the distributions of D1 (A, C, E) and D2 (B, D, F) receptor mRNAs in the rostral forebrain of the rat. D1 and D2 receptor mRNA expression is high in the caudate-putamen (CPu), nucleus accumbens (Acb), and olfactory tubercle (Tu). D1 expressing cells are extensively distributed in neo- and palleocortical areas with particularly high levels in the piriform cortex (Pir). Other cells expressing D1 receptor mRNA are localized in the dentate gyrus (DG), claustrum (Cl), endopiriform nucleus (En), and the suprachiasmatic nucleus of the hypothalamus (Sch). Cells expressing D2 receptor mRNA demonstrate a different distribution, with cells localized in the lateral dorsal septum (LSD), in the globus pallidus (GP), and in scattered cells of the parietal (Par) and frontal cortex.
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published 2000