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Fig. 3 | Respiratory Research

Fig. 3

From: Propylene glycol, a component of electronic cigarette liquid, damages epithelial cells in human small airways

Fig. 3

PG induces DNA damage. SAECs were cultured with 4% PG or Gly for 24 h. A Representative immunofluorescent images of the antibody reaction against γH2AX. Green signals indicate γH2AX-positive cells. Scale bar = 100 µm. B Ratio of γH2AX-positive cells to control (without PG and Gly). Three batches of SAECs were evaluated on two separate occasions. Values are mean ± SEM. Statistical significance was determined using two-way ANOVA. PG propylene glycol, Gly glycerol, SAECs small airway epithelial cells, SEM standard error of the mean

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