Myelinated fibers G ratio on acute (A) and chronic (B) treated and untreated diabetic groups and respective controls. All fibers from all nerves are represented. For all experimental groups the distributions are unimodal, with peaks at 0.6. Note that on acute diabetic group there is a slight shif of the distribution towards 1.0, suggestive of demyelination. This shift is more evident on the chronic diabetic groups, treated and untreated (One Way ANOVA on Ranks, p < 0.001).