Fig. 3From: Treadmill exercise enhances therapeutic potency of transplanted bone mesenchymal stem cells in cerebral ischemic rats via anti-apoptotic effectsDetection of cell apoptosis in the ischemic penumbra: a–d representative of photomicrographs of TUNEL staining in the ischemic penumbra 14 days after MCAO. The number of TUNEL staining-positive cells in the MSCs + Ex group (black arrows, DAB, brown) was markedly the lowest among the 4 groups. a control group, b MSCs group, c Ex group, d MSCs + Ex group. e Quantitative analysis of the number of TUNEL-positive cells. Data are expressed as the mean ± SD (n = 6). **p < 0.05, as compared with control group, *p < 0.01, as compared with control group, # p < 0.01 as compared with MSCs + Ex groupBack to article page