Fig. 4From: KCNQ1-deficient and KCNQ1-mutant human embryonic stem cell-derived cardiomyocytes for modeling QT prolongationFour CMs in response to ISO. A, B Representative FPD and quantitative analysis of four CMs after treatment with 100-uM ISO. C Ratio of the FDP to baseline of four CMs after ISO treatment. D Representative traces of EAD in the FPD of four CMs after treatment with ISO. E Quantitative analysis showed the proportion of EAD in four CMs after treatment with ISO. Results are presented as means ± standard error of the mean (n = 3, *P < 0.05, **P < 0.01, ***P < 0.001, ****P < 0.0001)Back to article page