Figure 2.
Effects of GDNF on phenotypic markers of DA terminals in striatum. Significant loss of TH (panel A), DAT (panel B), and VMAT2 (panel C), was observed in the striatum after 6-OHDA (* p < 0.01 vs. vehicle and GDNF). Animals given 6-OHDA with GDNF displayed significant loss of these markers after 2 wks when compared to animals that just received vehicle or GDNF (* p < 0.01). However, this 6-OHDA-induced loss was greatly attenuated by GDNF at 4 and 8 wks (†p < 0.01; ††p < 0.001 vs. 6-OHDA alone) and was not statistically different from animals treated with just vehicle or GDNF. All values are expressed as average lesion area in mm2 ± SEM.