Fig. 2

p-TDP43 immunohistochemistry. A Negative control—section of hippocampal dentate from a normal autopsy brain shows no p-TDP43 staining; scale bar = 80 μm. B Positive control—section of hippocampal dentate from patient with FTLD-TDP shows neuronal staining. C, D Representative control retinas show no p-TDP43 staining; scale bar = 60 μm. E–H Sections of retina from representative CTE cases show staining for p-TDP43 in outermost subset of cells (red arrow) in the inner nuclear layer. H Shows enlarged blow-up of area in square in (G); scale bar = 40 μm. All retina pictures are oriented with ONL at bottom