Treatment of Hyperoxia-Induced Lung Injury with Lung Mesenchymal Stem Cells in Mice

Figure 7

CD31 expression in the lung of mice in different groups. The optical density of CD31 expression was 0.176 ± 0.004 in the air control group, 0.165 ± 0.003 in the hyperoxia + L-MSC group, and 0.161 ± 0.003 in the hyperoxia + PBS group. There was marked difference in the CD31 expression among the three groups (, ). The CD31 expression of L-MSC treatment (E and F) was higher than that of the hyperoxia + PBS group () but lower than that of the air control group () significantly. per group; dotted line: mean; .