Quantitative analysis of cell density in the cerebellum of MeCP2 A140V mice. Cresyl violet stained cell nuclei in cerebellar sections from WT and A140V mice were counted in two separate areas of the granule cell layer in the cerebellum. In each cerebellar area, three adjacent regions were counted and the mean taken. The means for each area for each genotype are shown on the bar graph. The differences between the means were significant, (*) p < 0.05, indicating an increase in cell density in the A140V cerebellum.