FIGURE 4.  (A–C) Photomicrographs (original magnification, x400) of fluorescence immunostaining using antibody against GABA_A receptor. Images are of dorsal neocortex adjacent to cerebral infarct of BMSC-transplanted mice (A) or vehicle-transplanted mice (B) or from contralateral neocortex of vehicle-transplanted mice (C). (D) Average numbers of cells positive for GABA_A receptor in each area under x1,000 magnification. Dorsal neocortex adjacent to cerebral infarct had significantly more positive cells in BMSC-transplanted mice than in vehicle-transplanted mice (P = 0.0049). Bars represent SD of each value.