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Histograms to show the reduced motor axon loss (A and C), but increased sensory loss (B and C) in SOD1G85R mice lacking neurofilaments. The total number of axons (A and B) or the number of degenerating axonal profiles (C) was counted in the L5 ventral and dorsal roots of five mice of each genotype. Control mice were age matched with SOD1G85R mice with the same neurofilament content (NF-L +/+, 12 months; NF-L −/−, 13.5 months). Error bars are standard errors.
