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Figure 1

From: Variability of Action Potentials Within and Among Cardiac Cell Clusters Derived from Human Embryonic Stem Cells

Figure 1

Spontaneous activity of cardiac cell clusters.

(A) Left column: three beating hEBs at 14 days after initiating cardiac differentiation. Dashed contours indicate beating areas. Middle column: spontaneous action potentials recorded from a site in each of the cardiac cell clusters derived from the three hEBs. Right column: action potentials recorded from the same sites of each during 90 bpm pacing. (B) APD80 of spontaneous and paced cardiac cell clusters. Open circles: APD80 of spontaneous APs recorded from 14 cardiac cell clusters. Closed circles: APD80 of APs recorded at fixed 90 bpm pacing rate. Dashed line connecting open and closed circles indicates the same cluster.

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