Research Article

Different Responses to Drug Safety Screening Targets between Human Neonatal and Infantile Heart Tissue and Cardiac Bodies Derived from Human-Induced Pluripotent Stem Cells

Figure 2

Effects of E4031 1 μM on AP duration and occurrence of EADs. (a) Representative traces of patient TOF3 before (black) and during superfusion with E4031 1 μM before (red) and after (green) occurrence of EADs. (b) Occurrence of EADs in HLHS tissue slices, TOF tissue slices, and hiPS-CBs (9 wk) during superfusion with E4031 1 μM. (c-d) Change of APD50 (c) and APD90 (d) during administration of E4031 1 μM relative to baseline. Data are expressed as CI. Numbers above error bars indicate values <0.05 vs. HLHS (1), TOF (2), and 9 wks hiPS-CBs (3). Effect on APD50: ANOVA ; Hochberg post hoc: HLHS vs. TOF: ; HLHS vs. hiPS-CBs 9 wk: ; TOF vs. hiPS-CBs: ; and effect on APD90: ANOVA .
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