Figure 3

Effect of thymic stimulation by castration on motor neuron loss in spinal cords of male SOD1 ^G93A mice. (A) Representative photomicrographs of ventral horns of lumbar spinal cords of wild-type (WT) or sham and castrated (Cx) SOD1^G93A mice stained with cresyl violet at 120 days. Scale bar = 100 μm. (B) Quantification of average spinal motor neuron number per ventral horn from (A) is shown. Data are mean ± SEM, n = 3 to 4.