Fig. 1. Identification of dopaminergic neurons. (A) Transmitted images. Among the three neurons isolated, two large multipolor cells (marked a), were dopaminergic, whereas a small bipolar cell (marked b) was not (stained with tyrosine hydroxylase (TH) antibodies and FITC-conjugated secondary antibodies). Bar, 20 µm. (B) Classification of acutely isolated cells from the SNc according to their shapes.