Representative semithin cross section of the sural nerve of young (20 weeks old) female (1) and male SHR (2). Note the presence of infolded myelin sheath and myelin splitting. Arrows point to Wallerian degenerations. V indicates collapsed endoneural vessels and M indicates large myelinated fibers with normal aspect. Toluidine blue stained. Bar = 10 μm.
Sanada et al. BMC Neuroscience 2012 13:24 doi:10.1186/1471-2202-13-24