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. 2005 Oct 7;90(1):381–389. doi: 10.1529/biophysj.105.069013

FIGURE 4.

FIGURE 4

Ca entry during ICa is smaller after detubulation. (A) Mean (± SE) Ca entry during ICa in control (solid bars) and detubulated (open bars) rat ventricular myocytes during square pulse (Square, left), control AP waveform (AP Ctl, middle), and detubulated AP waveform (AP Det, right). (B) Ratio Ca entry/peak ICa for control (solid bars) and detubulated (open bars) rat ventricular myocytes during square pulse (Square, left), control AP waveform (AP Ctl, middle), and detubulated AP waveform (AP Det, right). (C) Mean (± SE) ratio for control (solid bars) and detubulated (open bars) myocytes when cells are stimulated with AP of their own type (APpair) and the other type (APinv). Data are from 12 control and 13 detubulated myocytes. *P < 0.05 between cell types, #P < 0.05 versus square pulse, and †P < 0.05 versus AP Ctl.