Neuronal numbers and their densities for the left IC and VCN considering different immunoreactivity patterns for Aβ, fibronectin (FN), and TDP-43. (a) Total number of neurons counted in each IC probe compared to nuclear, cytoplasmic, or both nuclear and cytoplasmic immunoreactivity; (b) Total density of neurons counted in each IC probe compared to nuclear, cytoplasmic, or both nuclear and cytoplasmic immunoreactivity referring to the IC Cavalieri volume; (c) Total number of neurons counted in each VCN probe compared to nuclear, cytoplasmic, or both nuclear and cytoplasmic immunoreactivity; (d) Total density of neurons counted in each VCN probe compared to nuclear, cytoplasmic, or both nuclear and cytoplasmic immunoreactivity referring to the VCN Cavalieri volume.