Table 1. Effects of PP2 and ISO on rat sinus node If (Ba2+ in solution).
Vth(mV) | V1/2(mV) | τ-act (−100mV) (ms) | |
---|---|---|---|
Control | −59.4±4.8(n=11) | −77.8±2.3(n=9) | 416.3±20.9(n=11) |
PP2* | −77.9±3.9(n=8) | −87.8±2.3(n=6) | 502.3±48.1(n=6) |
ISO | −53.8±4.0(n=9) | −67.3±2.3(n=7) | 328.8±22.0(n=7) |
ISO+PP2* | −82.9±3.6(n=6) | −93.8±1.5(n=6) | 658.0±36.1(n=6) |
PP3 did not have the effects of PP2 shown in the table.