Figure 8. Immunohistochemical detection of neuronal CAD (A–F) and DHODH (G–L) in adult non-AD human brain. (A, G) Negative control. No primary antibody. (B, H) Positive control. (C, I) Dentate gyrus. (D, J) Granular layer of dentate gyrus. (E, K) Frontal cortex. (F, L) Entorhinal cortex. Scale bar in L represents 1000 μm in C and I; 100 μm in A, B, D, E, G, H, J and K; and 20 μm in F and L.