a. Nissl stained coronal section of the prefrontal cortex reaching up to the medial prefrontal cortex (mPFC, ACA anterior cingular area) and corresponding to the coronal levels of the in-situ hybridisations shown for ATX and PRG-1. Scale bar: 800µm
b. ATX-expression is predominantly found in the upper prefrontal cortex layers (especially in layers II/III).
c. PRG-1 is strongly expressed in the layers II/III of the prefrontal cortex but is also found at high expression levels in the layer IV.