Figure 8. Rare labeling of astrocytes and amacrine cells. Syntaxin 1-labeled amacrine cells (A, green) and glial fibrillary acidic protein (GFAP)–labeled astrocytes (B, red) cells were rarely detected in the fields of cells. Nuclei were visualized using 4’,6-diamidino-2-phenylindole (DAPI; blue). Scale bars = 100 μm.