Fig. 3
Distribution of OX-2R (red) and CB1R (green), and their co-localization OX-2R/CB1R (yellow) in coronal sections of the diencephalon. (A,B) OX-2R/CB1R co-expression has been observed in the suprachiasmatic nucleus (SC), ventrolateral (VL) and ventromedial (VM) thalamic nuclei, dorsal habenular nucleus (Had), optic tectum (TeO), periventricular gray zone of the optic tectum (PGZ), ventral optic tract (VOT), lateral forebrain bundle (LFB) and ventral zone of the periventricular hypothalamus (Hv). (A1–A3) Higher magnification of the fields boxed in (A) showing the OX-2R/CB1R co-expression within the Had, VL, VM (A1), SC (A2) and TeO (A3). (B1–B3) Higher magnification of the fields boxed in (B) showing the OX-2R/CB1R co-expression within the TeO, PGZ (B1), VOT (B2), LFB and Hv (B3). DAPI (Blue) was used as a counterstaining to show nuclei. Scale bar, 250 μm for (A,B); 50 μm for (A1–A3,B1–B3).