Figure 4: (4a): A photomicrograph in the cerebellum of control rat showing positive brownish immunoreaction in some cells of the granular layer (astrocytes) [GFAP x 1000]. (4b): A photomicrograph of a section in the cerebellum of a rat from group II showing increase in staining intensity and number of positive brownish star shaped cells in granular layer (astrocytes)[GFAP x 1000]. (4c): A photomicrograph of a section in the cerebellum of a rat treated with CD 34+ stem cells showing increase in staining intensity and number of positive brownish star shaped cells in granular layer (astrocytes),compared to that of control group but less than group II [GFAP x 1000] (4d): A photomicrograph of a section in the cerebellum of a rat treated with CD 34- stem cells showing increase in staining intensity and number of positive brownish star shaped cells in granular layer (astrocytes),compared to that of control group but less than that of group II , 3 [GFAP x 1000].