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Fig. 1 | Respiratory Research

Fig. 1

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

Fig. 1

PG inhibits cell proliferation in a concentration-dependent manner. SAECs were cultured with 0–4% PG or Gly. Cell confluency was assessed every 3 h up to 96 h using IncuCyte Zoom. A Effect of PG on cell confluency, time-course. B Effect of PG on cell confluency at 96 h. Data were compared with control (indicated as a grey bar). C Effect of Gly on cell proliferation, time-course. D Effect of Gly on cell confluency at 96 h. Data were compared with control (indicated as a grey bar). E Comparison of cell confluency after PG exposure and Gly exposure. 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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Respiratory Research

ISSN: 1465-993X

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