Fig. 6.
(A–C) Photomicrographs and quantification of frontal sections showing PRV labeling in SCN 48 h after a PRV/CTb injection into VTA from (A) intact, (B) MPON- or (C) cd-LS-lesioned animals. The left side of all panels is ipsilateral to the injection site. 3 V, third ventricle; OC, optic chiasm. (D and E) Average number of neurons labeled in SCN with PRV in (D) MPON-and (E) cd-LS-lesioned animals. (B and D) Lesion of MPON reduced PRV labeling in both ipsilateral (**P < 0.001) and contralateral (#P < 0.01) SCN. (C and E) Lesion of the cd-LS did not change PRV labeling in ipsilateral SCN, but increased labeling in contralateral SCN (*P < 0.05). Scale bar, 200 μm.