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. 2017 Aug 24;18(9):1847. doi: 10.3390/ijms18091847

Figure 2.

Figure 2

Effect of polydeoxyribonucleotide (PDRN) treatment on the percentage of terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL)-positive cells. Upper: Photomicrographs of TUNEL-positive cells. The scale bar represents 100 μm. Red arrows represent TUNEL-positive cells. (A) Control and 24 h after sacrifice group; (B) Lung injury and 24 h after sacrifice group; (C) Lung injury with PDRN-treatment and 24 h after sacrifice group; (D) Control and 72 h after sacrifice group; (E) Lung injury and 72 h after sacrifice group; (F) Lung injury with PDRN-treatment and 72 h after sacrifice group. Lower: Percentages of TUNEL-positive cells. * represents p < 0.05 compared to the control and 24 h after sacrifice group. # represents p < 0.05 compared to the lung injury and 24 h after sacrifice group.