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. 2014 Jun;6(6):649–655. doi: 10.3978/j.issn.2072-1439.2014.06.26

Figure 4.

Figure 4

Lung endothelial cell apoptosis after smoke exposure and sham exposure. Lung immunofluorescence micrographs (×200) stained with CD31 (green), TUNEL (red), Hoechst (blue), and merged CD31-TUNEL- Hoechst. The pink signals indicated by the arrows suggesting lung endothelial cell apoptosis in representative examples of smoke exposed rats (A1, A2 and A3). No signal indicated in the lung stain in sham exposed rats (B1, B2 and B3). TUNEL, terminal deoxynucleotidyl transferase-mediated dUTP nick end-labeling.