Figure 7. Cx43^−/−-fibs have an attenuated effect on the conduction velocity but not on the beating frequency.

A, transmission picture of the MEA electrode field and the location of Cx43^−/−-fibs within the HL-1 monolayer (white area). B, representative FP from an electrode in the HL-1 + Cx43^−/−-fibs coculture. Cx43^−/−-fibs induced modulation of HL-1 monolayer beating frequency (C), and θ (D).