Fig. 3From: Starburst amacrine cells, involved in visual motion perception, lose their synaptic input from dopaminergic amacrine cells and degenerate in Parkinson’s disease patientsa Immunostaining against tyrosine hydroxylase (TH, red) and choline acetyltransferase (ChAT, green) in a section of the human retina. b Wholemount human retina with a dopaminergic cell (TH, red) forming the characteristic ring-like structures surrounding ChAT-positive cells (green). c–f Examples of dopaminergic rings with ChAT-positive cells inside. g Three-dimensional view of the connections between the dopaminergic plexus and ChAT-positive cell dendrites and somata. h–m Examples of contacts between dopaminergic processes and ChAT-positive cell somata. S1: stratum 1 in the IPL. Scale bars: 20 μm (a), 25 μm (b–f), 5 μm (g), 2.5 μm (h–m)Back to article page