Fig. (1).
Immunohistochemistry for cholinergic (A) or dopaminergic (B) neurons in vitro. Co-slices composed of four brain regions, the basal nucleus of Meynert (nBM), dorsal striatum (dStr), ventral mesencephalon (vMes) and cortex (Ctx) were incubated for 4 weeks with nerve growth factor and glial cell line-derived neurotrophic factor and then stained for choline acetyltransferase (ChAT) (A) or tyrosine hydroxylase (TH) (B). The different brain areas are indicated by dashed lines. Scale bar in A = 550 m (A, B).