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Fig. 6 | Respiratory Research

Fig. 6

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

Fig. 6

COPD-SAECs are affected more by PG exposure. A Effect of PG on cell confluency at 96 h. B Effect of PG on cell viability by CCK-8. C Effect of PG on LDH release. D Effect of 4% PG on the ratio of γH2AX-positive cells at 24 h. E Effect of PG on caspase 3/7-positive cells at 24 h. Three batches of SAECs and COPD-SAECs were evaluated on two separate occasions. Values are mean ± SEM. Data are adjusted with control of each cell (without PG exposure). Statistical significance was determined using Two-way ANOVA and unpaired t- test. PG propylene glycol, SAECs small airway epithelial cells, COPD chronic obstructive pulmonary disease, CCK-8 cell counting kit-8, LDH lactate dehydrogenase, SEM standard error of the mean

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