A diagram shows experimental protocols (A).

<p>Confocal microscopic images show YFP positive cells in non-ischemic brain 14 days after injection of tamoxifen (B and C) and YFP positive cells in ischemic striatum 30 days after middle cerebral artery occlusion (MCAO, D). An orthogonal view shows that several YFP immunoreactive cells (green) were nestin positive (red) in the anterior SVZ of the lateral ventricle of non-ischemic brain (C). A light microscopic image of hematoxylin and eosin (H&E) stained coronal section shows striatal ischemic lesion 30 days after MCAO (E). Bars = 100 µm for B, and D, 10 µm in C, and 100 µm in E. Blue color = cell nuclei. LV = lateral ventricle. D0 represents the day of MCAO.