Table 2.

Comparison of Calcium Transient Parameters between HVPs during Ventriculogenesis In Vitro and In Vivo by Optical Mapping

Parameter	NKX2.5-GFP Day 15+ In Vitro	NKX2.5-GFP Day 30+ In Vitro
CaT upstroke time (ms)	266 ± 5 (n = 3)	234 ± 2 (n = 3)
CaT 50% decay time (ms)	186 ± 23 (n = 3)	255 ± 4 (n = 3)
CaT 50 (ms)	452 ± 12 (n = 3)	490 ± 2 (n = 3)

The NKX2.5-GFP-labeled ESC line was employed for in vitro and ex vivo (i.e., kidney patch) analyses. All measurements made by optical mapping during 1-Hz pacing.