Higher levels of peripherin immunoreactivity in motor and sensory cell bodies in mice deleted for NFL. Peripherin was detected with anti-peripherin antibody in motor or sensory cell bodies in paraffin-embedded spinal cord (A, B) or dorsal root ganglion sections (C, D) from normal mice (A, C) or mice deleted for NFL (B, D). Scale bars: A, B, 10 μm; C, D, 20 μm.